CN212875478U - Intelligent management system for distribution transformer - Google Patents
Intelligent management system for distribution transformer Download PDFInfo
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- CN212875478U CN212875478U CN202022252279.6U CN202022252279U CN212875478U CN 212875478 U CN212875478 U CN 212875478U CN 202022252279 U CN202022252279 U CN 202022252279U CN 212875478 U CN212875478 U CN 212875478U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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Abstract
The utility model discloses an intelligent management system of a distribution transformer, which comprises a special distribution device, a safety protection module, a power supply switching module, an electric leakage alarm module, a water level monitoring positioning alarm module, a circuit protection module, a temperature-humidity automatic regulation module and a power failure control module, wherein the safety protection module is distributed around the special distribution device and is enclosed into a monitoring area, the power supply switching module is used for switching a power supply, the electric leakage alarm module is used for detecting the electric leakage condition, the water level monitoring positioning alarm module is used for detecting the water level on the ground, the circuit protection module is used for protecting electric equipment, the temperature-humidity automatic regulation module is used for detecting the temperature and the humidity in an electric box, the power failure control module is used for realizing the power failure control, the intelligent management system has perfect functions and comprehensive monitoring, and integrates the safety of the equipment, the safety of a human body, in addition, each module can independently operate, is convenient for later maintenance, and is an all-round and three-dimensional intelligent management system.
Description
Technical Field
The utility model relates to a distribution transformer intelligent management system.
Background
The power supply and distribution system generally comprises a high-voltage distribution substation, a high-voltage distribution line, a low-voltage substation, a low-voltage distribution line and electric equipment. According to the voltage level provided by a public power grid, primary transformation or secondary transformation may be required for the power consumption of an enterprise at present; the one-time transformation is to reduce the voltage of 6-10 KV provided by a public power grid to 380/220V, and the electric energy is directly distributed to each low-voltage electric equipment for use; the secondary transformation needs to firstly reduce the voltage of 35-110 KV provided by a public power grid to 6-10 KV, then reduce the voltage of 6-10 KV to 380/220V and distribute the voltage to each low-voltage electric device for use, and in the process, the distribution transformer plays an important role.
At present, there is no perfect management system for monitoring and management of the distribution transformer, and although there are many technologies that have gradually perfect technical schemes for monitoring and management of the distribution transformer, the functions of the technical schemes for monitoring and management of the distribution transformer are single and incomplete, so that the monitoring and management of the distribution transformer is not comprehensive enough.
Disclosure of Invention
The utility model provides a distribution transformer intelligent management system, the function of the technical scheme to distribution transformer's control management all is single in order to solve among the prior art, and is incomplete, incomplete technical problem.
The technical scheme of the utility model is realized like this:
an intelligent management system for distribution transformers, comprising:
the special power distribution equipment is used for reducing the high-voltage provided by a public power grid into low-voltage and outputting the low-voltage to provide power for a power load side, an intelligent switch is arranged at a wire inlet end of the public power grid, and the special power distribution equipment comprises a power distribution transformer serving as a main power supply end to supply power for the power load side;
the safety protection modules are distributed around the special power distribution equipment and surround a monitoring area, and are used for reminding people entering the monitoring area, monitoring the field construction operation process in real time and storing related information contents to the cloud;
one end of the power supply switching module is connected with the low-voltage output end of the distribution transformer, and the other end of the power supply switching module is connected with a standby power supply and used for switching a power supply for supplying power to an electric load side so as to ensure the continuity of power supply;
the leakage alarm module is arranged at the periphery of the special power distribution equipment and used for detecting whether the leakage condition exists around the special power distribution equipment or not, and when the leakage condition exists around the special power distribution equipment, the leakage alarm module starts real-time alarm and sends alarm information to the outside;
the water level monitoring and positioning alarm module is arranged at the periphery of the special power distribution equipment and used for detecting the water level of the ground around the special power distribution equipment, and when the water level of the ground around the special power distribution equipment is detected to reach a set water level, the water level monitoring and positioning alarm module starts real-time alarm and sends alarm information to the outside, drives the intelligent switch to be disconnected and cuts off a high-voltage power supply provided by a public power grid;
the circuit protection module is connected with the output end of the power supply switching module and is used for detecting whether the power supply has the condition of phase loss, overvoltage or undervoltage, and when the condition of phase loss, overvoltage or undervoltage is detected, the circuit protection module acts to disconnect a power supply loop and prevent electrical equipment on the side of an electric load from being damaged;
the temperature-humidity automatic adjusting module is arranged in an electric box of the special power distribution equipment and used for detecting the temperature and the humidity in the electric box, when the temperature in the electric box reaches a set value, the temperature-humidity automatic adjusting module can perform cooling treatment on the interior of the electric box, and when the humidity in the electric box reaches the set value, the temperature-humidity automatic adjusting module can perform dehumidification treatment on the interior of the electric box;
and the power failure control module is connected with the output end of the circuit protection module, and the output end of the power failure control module is connected with the electric load side and used for realizing power failure control of the power supply.
Preferably, the safety protection module comprises an infrared sensor, an A/D conversion module, a first control processor, a solar lighting panel, an electric energy conversion module, a storage battery, a display, a loudspeaker, a video monitor, a first driving module, a network communication module and a terminal device, wherein the output end of the solar lighting panel is connected to the input end of the electric energy conversion module, the output end of the electric energy conversion module supplies power to the display, the loudspeaker and the video monitor or charges the storage battery, the first control processor controls the storage battery or the electric energy conversion module to supply power to the display, the loudspeaker and the video monitor according to specific conditions, the infrared sensor is in signal connection with the first control processor through the A/D conversion module, the output end of the first control processor is in signal connection with the input ends of the display, the loudspeaker and the video monitor through the first driving module respectively, when the infrared sensor detects that someone enters the set safety range, the first control processor drives the display and the loudspeaker to remind, the video monitor monitors the field construction operation process around the power distribution special equipment in the whole process, the video monitor transmits monitoring contents to the cloud end through the network communication module, and the terminal equipment is connected with the cloud end and used for checking related information contents of real-time monitoring.
Preferably, the power switching module includes a first double-ended knife switch, the first double-ended knife switch includes a first knife switch, a first fixed contact, a first movable contact of the first double-ended knife switch, and a second movable contact of the first double-ended knife switch, one end of the first knife switch is hinged to the first fixed contact, the first movable contact of the first double-ended knife switch is connected to the distribution transformer, the second movable contact of the first double-ended knife switch is used for connecting to the standby power supply, the first fixed contact is connected to the circuit protection module, and switching between the main power supply and the standby power supply is achieved by switching connection between the first knife switch and the first movable contact of the first double-ended knife switch or the second movable contact of the first double-ended knife switch.
Preferably, the electric leakage alarm module comprises a zero sequence current detection module, a step voltage detection module, a second control processor, a first wireless communication module and a first field alarm module, wherein the output ends of the zero sequence current detection module and the step voltage detection module are respectively in signal connection with the input end of the second control processor, and the output end of the second control processor is respectively in signal connection with the first wireless communication module and the first field alarm module; the zero sequence current detection module is used for detecting the electric leakage condition of the low-voltage line and transmitting detection data to the second control processor, and when the electric leakage condition of the line is found, the second control processor triggers the first wireless communication module to feed the electric leakage condition of the line back to a mobile phone of an attendant and triggers the first field alarm module to start; the step voltage detection module is used for detecting step voltage of the ground around the special power distribution equipment and transmitting detection data to the second control processor, when the step voltage is larger than or equal to a set value, the step voltage is regarded as electric leakage, at the moment, the second control processor triggers the first wireless communication module to feed back the electric leakage condition of the line to a mobile phone of an operator on duty, and triggers the first field alarm module to start.
Preferably, the water level monitoring and positioning alarm module comprises a water level monitoring and detecting device, a third control processor, a second wireless communication module and a second field alarm module, wherein the output end of the water level monitoring and detecting device is in signal connection with the input end of the third control processor, and the output end of the third control processor is in signal connection with the second wireless communication module and the second field alarm module respectively; the water level monitoring and detecting device is used for detecting the water level of the ground around the special power distribution equipment and transmitting detection data to the third control processor, when the water level of the ground around the special power distribution equipment is detected to reach a set water level, the third control processor triggers the second wireless communication module to feed back the line leakage situation to a mobile phone of an operator on duty and triggers the second field alarm module to start, the output end of the third control processor is also connected with a wireless transmitting module, and the third control processor controls the intelligent switch to be switched off through the wireless transmitting module so as to automatically cut off the power supply of the public power grid incoming line end of the special power distribution equipment; the water level monitoring and detecting device is powered by the solar power supply module.
Preferably, the intelligent switch comprises a magnetic control switch, a magnetic control driving circuit, a microprocessor and a wireless receiving module, wherein the output end of the wireless receiving module is connected with the input end of the microprocessor, the wireless receiving module is used for receiving a wireless signal sent by the wireless transmitting module and transmitting the signal to the microprocessor, the output end of the microprocessor controls the action of the magnetic control switch through the magnetic control driving circuit, and when the water level monitoring and positioning alarm module detects that the water level of the ground around the special power distribution equipment reaches a set value, the third control processor sends a switch-off instruction to the intelligent switch through the wireless transmitting module, so that the intelligent switch is automatically switched off, and a high-voltage power supply provided by a public power grid is cut off.
Preferably, the circuit protection module comprises a power module for providing a direct-current power supply, a phase-failure fault detection module, an overvoltage fault detection module, an undervoltage fault detection module, a fourth control processor, a thyristor, an electromagnetic switch unit K and a second drive module for controlling the thyristor, wherein the input end of the power module is connected with a first fixed contact of the first double-head knife switch, and the output end of the power module is respectively connected with the fourth control processor, the second drive module and the thyristor; the input ends of the open-phase fault detection module, the overvoltage fault detection module and the undervoltage fault detection module are respectively connected with a first static contact of a first double-head knife switch, and the output ends of the open-phase fault detection module, the overvoltage fault detection module and the undervoltage fault detection module are connected with a fourth control processor so that the fourth control processor can judge whether the output voltage of the special power distribution equipment is open-phase or overvoltage or undervoltage; the input end of the second driving module is connected with the fourth control processor, and the output end of the second driving module is connected with the controlled silicon; the electromagnetic switch unit K is connected between the first fixed contact and the power failure control module so as to selectively switch on or switch off a power supply; and the fourth control processor judges whether the power supply is in phase failure, overvoltage or undervoltage or not and outputs an attraction signal or a release signal to the second driving module according to the judgment result, and the second driving module controls the conduction or the cut-off of the silicon controlled rectifier, so that the electromagnetic switch unit K is controlled to trip or close.
Preferably, the power failure control module includes a second double-ended knife switch connected between the power load side and the electromagnetic switch unit K of the circuit protection module, the second double-ended knife switch includes a second knife, a second fixed contact, a first moving contact of the second double-ended knife switch, and a second moving contact of the second double-ended knife switch, one end of the second knife is hinged to the second fixed contact, the first moving contact of the second double-ended knife switch is connected to the electromagnetic switch unit K, the second moving contact of the second double-ended knife switch is used for being connected to the ground, the second fixed contact is connected to the power load side, and power failure control of the power supply is achieved by switching connection between the second knife and the first moving contact of the second double-ended knife switch or the second moving contact of the second double-ended knife switch.
Preferably, the temperature-humidity automatic adjusting module comprises a temperature detection sensor, a humidity detection sensor, a fifth control processor, a fan, a dehumidifier and a third driving module for driving the fan and the dehumidifier, wherein the temperature detection sensor and the humidity detection sensor are used for detecting the temperature and the humidity in an electric box of the special power distribution equipment, the signal output ends of the temperature detection sensor and the humidity detection sensor are respectively connected with the signal input end of the fifth control processor through an a/D conversion module and transmit the detection data to the fifth control processor, and the signal output end of the fifth control processor is respectively connected with the fan and the dehumidifier through a third driving module; when the temperature detection sensor detects that the temperature in the electric box is higher than a set value, the fifth control processor sends a signal for driving the fan to start so as to reduce the temperature in the electric box; when the humidity detection sensor detects that the humidity in the electric box is higher than a set value, the fifth control processor sends a signal for driving the dehumidifier to start so as to keep the inside of the electric box dry.
Compared with the prior art, the utility model beneficial effect be:
1. an intelligent management system of a distribution transformer comprises special distribution equipment, a safety protection module, a power supply switching module, an electric leakage alarm module, a water level monitoring and positioning alarm module, a circuit protection module, a temperature-humidity automatic regulation module and a power failure control module, wherein the safety protection module is distributed around the special distribution equipment and encloses a monitoring area, the power supply switching module is used for switching a power supply, the electric leakage alarm module is used for detecting the electric leakage condition, the water level monitoring and positioning alarm module is used for detecting the water level on the ground, the circuit protection module is used for protecting electric equipment, the temperature-humidity automatic regulation module is used for detecting the temperature and the humidity in an electric box, and the power failure control module is used for realizing the power failure control, the intelligent management system has perfect functions and comprehensive monitoring, and integrates the safety of equipment, the safety of human bodies and the omnibearing, in addition, each module can independently operate, is convenient for later maintenance, and is an all-round and three-dimensional intelligent management system.
2. Other advantages of the present invention are described in detail in the examples section of this specification.
Drawings
Fig. 1 is a schematic block diagram of an intelligent management system provided by the present invention;
FIG. 2 is a schematic block diagram of a safety module provided by the present invention;
fig. 3 is a schematic block diagram of the leakage alarm module provided by the present invention;
FIG. 4 is a schematic block diagram of a water level monitoring and positioning alarm module provided by the present invention;
fig. 5 is a schematic circuit connection diagram of the power switching module, the circuit protection module, the power failure control module and the zero sequence current detection module provided by the present invention;
fig. 6 is a schematic block diagram of a circuit protection module provided by the present invention;
fig. 7 is a schematic block diagram of the temperature-humidity automatic adjusting module provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 7, the present embodiment provides an intelligent management system for a distribution transformer, including:
the special power distribution equipment 1 is used for reducing the high-voltage provided by a public power grid into low-voltage and outputting the low-voltage to provide power for a power load side, an intelligent switch 8 is arranged at a wire inlet end of the public power grid, and the special power distribution equipment 1 comprises a power distribution transformer which serves as a main power supply end to supply power for the power load side;
the safety protection modules 2 are distributed around the special power distribution equipment 1 and form a monitoring area in an enclosing mode, and the safety protection modules 2 are used for reminding people entering the monitoring area, monitoring the field construction operation process in real time and storing related information contents to the cloud end;
one end of the power supply switching module 3 is connected with the low-voltage output end of the distribution transformer, and the other end of the power supply switching module is connected with a standby power supply and is used for switching a power supply for supplying power to an electric load side so as to ensure the continuity of power supply;
the leakage alarm module 9 is arranged at the periphery of the special power distribution equipment 1 and used for detecting whether leakage exists around the special power distribution equipment 1, and when the leakage exists around the special power distribution equipment 1, the leakage alarm module 9 starts real-time alarm and sends alarm information to the outside;
the water level monitoring and positioning alarm module 4 is arranged at the periphery of the special power distribution equipment 1 and is used for detecting the water level of the ground around the special power distribution equipment 1, and when the water level of the ground around the special power distribution equipment 1 is detected to reach a set water level, the water level monitoring and positioning alarm module 4 starts real-time alarm and sends alarm information to the outside, drives the intelligent switch 8 to be disconnected and cuts off a high-voltage power supply provided by a public power grid;
the circuit protection module 5 is connected with the output end of the power supply switching module 3 and is used for detecting whether the power supply has the condition of phase loss, overvoltage or undervoltage, and when the condition of phase loss, overvoltage or undervoltage is detected, the circuit protection module 5 acts to disconnect a power supply loop and prevent electrical equipment on the side of an electrical load from being damaged;
the temperature-humidity automatic adjusting module 6 is arranged in an electric box of the special power distribution equipment 1 and is used for detecting the temperature and the humidity in the electric box, when the temperature in the electric box reaches a set value, the temperature-humidity automatic adjusting module 6 can perform cooling treatment on the interior of the electric box, and when the humidity in the electric box reaches the set value, the temperature-humidity automatic adjusting module 6 can perform dehumidification treatment on the interior of the electric box;
and the power failure control module 7 is connected with the output end of the circuit protection module 5, and the output end of the power failure control module is connected with the electric load side for realizing the rapid power failure control of the power supply.
This intelligent management system function is perfect, and the control is comprehensive, collects equipment safety, human safety protection, the all-round protection of equipment in an organic whole, and in addition, each module can the independent operation, and the later maintenance of being convenient for is an all-round, three-dimensional intelligent management system.
The safety protection module 2 comprises an infrared sensor, an A/D conversion module, a first control processor, a solar lighting panel, an electric energy conversion module, a storage battery, a display, a loudspeaker, a video monitor, a first driving module, a network communication module and terminal equipment, wherein the output end of the solar lighting panel is connected to the input end of the electric energy conversion module, the output end of the electric energy conversion module supplies power to the display, the loudspeaker and the video monitor or charges the storage battery, the first control processor controls the storage battery or the electric energy conversion module to supply power to the display, the loudspeaker and the video monitor according to specific conditions, the infrared sensor is in signal connection with the first control processor through the A/D conversion module, the output end of the first control processor is in signal connection with the input ends of the display, the loudspeaker and the video monitor through the first driving module respectively, when the infrared sensor detects that someone enters the set safety range, the first control processor drives the display and the loudspeaker to remind, the video monitor monitors the field construction operation process around the power distribution special equipment 1 in the whole process, the video monitor transmits monitoring content to the cloud end through the network communication module, the terminal equipment is connected with the cloud end and used for checking related information content of real-time monitoring, the reminding and monitoring functions are integrated, the functions of the terminal equipment are perfect, and the control principle is simple.
Specifically, when a person enters a monitoring area surrounded by the safety protection module 2, the loudspeaker makes a voice prompt of "you enter a transformer dangerous area and please pay attention to safety", and meanwhile, a corresponding text prompt is made on the display screen, wherein the display screen is an LED display screen.
Specifically, the network communication module can be a WIFI module, a 4G module or a 5G module, the video monitor is connected to the internet through the network communication module and uploads monitoring contents to the cloud, the terminal equipment can check the related information contents through logging in the cloud, and the terminal equipment can be a terminal computer.
The power supply switching module 3 comprises a first double-ended knife switch, the first double-ended knife switch comprises a first knife 31, a first fixed contact 32, a first movable contact 33 of the first double-ended knife switch and a second movable contact 34 of the first double-ended knife switch, one end of the first knife 31 is hinged on the first fixed contact 32, the first movable contact 33 of the first double-ended knife switch is connected with a distribution transformer, the second movable contact 34 of the first double-ended knife switch is used for connecting a standby power supply, the first fixed contact 32 is connected with the circuit protection module 5, one end of the first knife 31 rotates around the first fixed contact 32, when the first movable contact 33 of the first double-ended knife switch is moved to and contacted with the first movable contact 33 of the first double-ended knife switch, the distribution transformer supplies power to the electric load side through a first moving contact 33, a first knife switch 31 and a first fixed contact 32 of the first double-head knife switch; when the first knife switch 31 moves reversely and leaves the first moving contact 33 of the first double-ended knife switch, the first moving contact 33 of the first double-ended knife switch is separated from the first knife switch 31, and a power supply loop of the distribution transformer and the power load side is cut off, so that an isolation effect is achieved; when the first switch 31 moves reversely to the second moving contact 34 of the first double-ended switch and contacts with the second moving contact 34 of the first double-ended switch, the standby power supply is switched to the standby power supply, and the standby power supply supplies power to the electric load side through the second moving contact 34 of the first double-ended switch, the first switch 31 and the first fixed contact 32, so that the main power supply and the standby power supply can be freely switched.
Specifically, the backup power source may be a dedicated power distribution device placed elsewhere, or may be a storage battery that converts direct current into alternating current through an inverter to supply power to the electrical load side.
The electric leakage alarm module 9 comprises a zero sequence current detection module, a step voltage detection module, a second control processor, a first wireless communication module and a first field alarm module, wherein the output ends of the zero sequence current detection module and the step voltage detection module are respectively in signal connection with the input end of the second control processor, and the output end of the second control processor is respectively in signal connection with the first wireless communication module and the first field alarm module; the zero sequence current detection module is used for detecting the electric leakage condition of the line and transmitting detection data to the second control processor, and when the electric leakage condition of the line is found, the second control processor triggers the first wireless communication module to feed the electric leakage condition of the line back to the mobile phone of an attendant and triggers the first field alarm module to start; the step voltage detection module is used for detecting step voltage of the ground around the special power distribution equipment 1 and transmitting detection data to the second control processor, when the step voltage is larger than or equal to a set value, the step voltage is regarded as electric leakage, at the moment, the second control processor triggers the first wireless communication module to feed back the electric leakage condition of the line to a mobile phone of an operator on duty, and triggers the first field alarm module to start.
Specifically, the zero sequence current detection module comprises a zero sequence current transformer and an A/D converter, wherein the input end of the zero sequence current transformer is connected with an output circuit of the power failure control module 7 and is used for detecting the electric leakage condition of the circuit, the output end of the zero sequence current transformer is connected with the input end of the A/D converter, the output end of the A/D converter is connected with the input end of the second control processor, the A/D converter is used for converting an analog signal of the zero sequence current transformer into a digital signal and transmitting the digital signal to the second control processor, if the electric leakage condition exists, the second control processor triggers the first wireless communication module to feed back the electric leakage condition of the circuit to a mobile phone of an on-duty person, the on-duty person can conveniently process the electric leakage condition by communicating the position of the mobile phone at a certain position, and simultaneously, the second control processor can trigger the first field alarm module to start, and realizing field alarm to remind passers to pay attention to safety, wherein the zero sequence current transformer is an electric wire at the output line side of the power failure control module 7.
Specifically, the step voltage detection module comprises a pair of ground poles and an electric leakage detection module, the pair of ground poles is connected with the electric leakage detection module, the electric leakage detection module is connected with the second control processor, the pair of ground poles is inserted into the ground around the special distribution equipment 1 and used for detecting the step voltage of the ground around the special distribution equipment 1 and sending the step voltage to the electric leakage detection module, the electric leakage detection module sends detection data to the second control processor, if an electric leakage condition exists, the second control processor triggers the first wireless communication module to feed back the line electric leakage condition to a mobile phone of an on-duty person, the on-duty person can conveniently and timely handle the electric leakage condition by communicating the place where the mobile phone is positioned, meanwhile, the second control processor can trigger the first field alarm module to start, field alarm is achieved, and safety of passers is reminded.
Further, the first wireless communication module is a mobile phone module, and the first field alarm module may be an optical alarm module, a sound alarm module, or a sound and light alarm module.
The water level monitoring and positioning alarm module 4 comprises a water level monitoring and detecting device, a third control processor, a second wireless communication module and a second field alarm module, wherein the output end of the water level monitoring and detecting device is in signal connection with the input end of the third control processor, and the output end of the third control processor is in signal connection with the second wireless communication module and the second field alarm module respectively; the water level monitoring and detecting device is used for detecting the water level of the ground around the special power distribution equipment 1 and transmitting detection data to the third control processor, when the water level of the ground around the special power distribution equipment 1 is detected to reach a set water level, the third control processor triggers the second wireless communication module to feed back the line leakage situation to a mobile phone of an on-duty person, the on-duty person can communicate the position of the mobile phone with the leakage place to conveniently and timely process the leakage situation and trigger the second field alarm module to start, the output end of the third control processor is also connected with a wireless transmitting module, the third control processor controls the intelligent switch 8 to be switched off through the wireless transmitting module, and the power supply of the public power grid incoming line end of the special power distribution equipment 1 is automatically cut off; the water level monitoring and detecting device is powered by the solar power supply module, the second wireless communication module is a mobile phone module, the second field alarm module can be an optical alarm module or an acoustic alarm module or an acousto-optic alarm module, the structure is simple, the cost is low, the control is convenient, the power supply of the public power grid inlet wire end of the special power distribution equipment 1 can be cut off remotely, the electric leakage condition can not occur when the water level near the special power distribution equipment 1 is too high, the safety is high, in addition, the solar power supply is adopted, the energy consumption is low, and the environment is protected.
The intelligent switch 8 comprises a magnetic control switch, a magnetic control driving circuit, a microprocessor and a wireless receiving module, wherein the output end of the wireless receiving module is connected with the input end of the microprocessor, the wireless receiving module is used for receiving a wireless signal sent by the wireless transmitting module and transmitting the signal to the microprocessor, the output end of the microprocessor controls the action of the magnetic control switch through the magnetic control driving circuit, when the water level monitoring and positioning alarm module 4 detects that the water level on the ground around the special power distribution equipment 1 reaches a set value, the third control processor sends an instruction of disconnecting the switch to the intelligent switch 8 through the wireless transmitting module, so that the intelligent switch 8 is automatically disconnected, and a high-voltage power supply provided by a public power grid is cut off, the structure is simple, and the use is.
The circuit protection module 5 comprises a power module for providing a direct-current power supply, a phase-failure fault detection module, an overvoltage fault detection module, an undervoltage fault detection module, a fourth control processor, a thyristor, an electromagnetic switch unit K and a second drive module for controlling the thyristor, wherein the input end of the power module is connected with a first static contact 32 of a first double-ended knife switch, and the output end of the power module is respectively connected with the fourth control processor, the second drive module and the thyristor; the input ends of the open-phase fault detection module, the overvoltage fault detection module and the undervoltage fault detection module are respectively connected with a first static contact 32 of a first double-ended knife switch, and the output ends of the open-phase fault detection module, the overvoltage fault detection module and the undervoltage fault detection module are connected with a fourth control processor so that the fourth control processor can judge whether the output voltage of the special power distribution equipment 1 is open-phase, overvoltage or undervoltage; the input end of the second driving module is connected with the fourth control processor, and the output end of the second driving module is connected with the controlled silicon; the electromagnetic switch unit K is connected between the first fixed contact 32 and the power failure control module 7 to selectively switch on or off the power supply; the fourth control processor judges whether the supply power supply is in phase failure, overvoltage or undervoltage and outputs a pull-in signal or a release signal to the second driving module according to the judgment result; when the power supply is in a phase-loss state or an overvoltage or undervoltage state, the fourth control processor outputs an attraction signal, the second driving module controls the conduction of the silicon controlled rectifier, and the electromagnetic switch unit K trips; when the power supply is in a normal state, the microprocessor outputs a release signal, the second driving module controls the silicon controlled rectifier to be stopped, and the electromagnetic switch unit K is switched on.
The power failure control module 7 includes a second double-ended knife switch connected between the electrical load side and the electromagnetic switch unit K of the circuit protection module 5, the second double-ended knife switch includes a second knife 71, a second fixed contact 72, a first movable contact 73 of the second double-ended knife switch, and a second movable contact 74 of the second double-ended knife switch, one end of the second knife 71 is hinged to the second fixed contact 72, the first movable contact 73 of the second double-ended knife switch is connected to the electromagnetic switch unit K, the second movable contact 74 of the second double-ended knife switch is used for being connected to the ground, one end of the second knife 71 rotates around the second fixed contact 72, and when the second knife 71 moves to the first movable contact 73 of the second double-ended knife switch and contacts with the first movable contact 73 of the second double-ended knife switch, the electromagnetic switch unit K passes through the first movable contact 73, the second movable contact 73 of the second double-ended knife switch, The second knife switch 71 and the second fixed contact 72 supply power to the electric load side; when the second knife switch 71 moves reversely away from the first moving contact 73 of the second double-ended knife switch, the first moving contact 73 of the second double-ended knife switch of the electromagnetic switch unit K is separated from the second knife switch 71, and a power supply loop of a power supply side and a power load side is cut off, so that an isolation effect is achieved; when the second knife switch 71 moves reversely to the second moving contact 74 of the second double-ended knife switch and contacts with the second moving contact 74 of the second double-ended knife switch, the electric load side automatically passes through the second fixed contact 72 and the second moving contact 74 ground wire of the second double-ended knife switch to play a role in grounding.
The temperature-humidity automatic adjusting module 6 comprises a temperature detection sensor, a humidity detection sensor, a fifth control processor, a fan, a dehumidifier and a third driving module for driving the fan and the dehumidifier, wherein the temperature detection sensor and the humidity detection sensor are used for detecting the temperature and the humidity in an electric box of the special power distribution equipment 1, the signal output ends of the temperature detection sensor and the humidity detection sensor are respectively connected with the signal input end of the fifth control processor through an A/D (analog/digital) conversion module and transmit detection data to the fifth control processor, and the signal output end of the fifth control processor is respectively connected with the fan and the dehumidifier through a third driving module; when the temperature detection sensor detects that the temperature in the electric box is higher than a set value, the fifth control processor sends a signal for driving the fan to start so as to reduce the temperature in the electric box; when the humidity detection sensor detects that the humidity in the electric box is higher than a set value, the fifth control processor sends a signal for driving the dehumidifier to start so as to keep the dryness in the electric box, so that the electric special equipment is protected in an all-round way, and the normal power supply is ensured.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.
Claims (9)
1. An intelligent management system for distribution transformers, comprising:
the special power distribution equipment (1) is used for reducing the high-voltage provided by a public power grid into low-voltage and outputting the low-voltage to provide power for a power load side, an intelligent switch (8) is arranged at a wire inlet end of the public power grid, the special power distribution equipment (1) comprises a power distribution transformer, and the power distribution transformer is used as a main power supply end to supply power for the power load side;
the safety protection modules (2) are distributed around the special power distribution equipment (1) and enclose a monitoring area, and the safety protection modules (2) are used for reminding people entering the monitoring area, monitoring the field construction operation process in real time and storing related information contents to the cloud;
one end of the power supply switching module (3) is connected with the low-voltage output end of the distribution transformer, and the other end of the power supply switching module is connected with a standby power supply and is used for switching a power supply for supplying power to an electric load side so as to ensure the continuity of power supply;
the leakage alarm module (9) is arranged on the periphery of the special power distribution equipment (1) and is used for detecting whether leakage exists around the special power distribution equipment (1), and when the leakage exists around the special power distribution equipment (1), the leakage alarm module (9) starts real-time alarm and sends alarm information to the outside;
the water level monitoring and positioning alarm module (4) is arranged at the periphery of the special power distribution equipment (1) and is used for detecting the water level of the ground around the special power distribution equipment (1), and when the water level of the ground around the special power distribution equipment (1) is detected to reach a set water level, the water level monitoring and positioning alarm module (4) starts real-time alarm, sends alarm information to the outside, drives the intelligent switch (8) to be disconnected and cuts off a high-voltage power supply provided by a public power grid;
the circuit protection module (5) is connected with the output end of the power supply switching module (3) and is used for detecting whether the power supply has the condition of phase loss, overvoltage or undervoltage, and when the condition of phase loss, overvoltage or undervoltage is detected, the circuit protection module (5) acts to disconnect a power supply loop and prevent electrical equipment on the side of an electrical load from being damaged;
the temperature-humidity automatic adjusting module (6) is arranged in an electric box of the special power distribution equipment (1) and is used for detecting the temperature and the humidity in the electric box, when the temperature in the electric box reaches a set value, the temperature-humidity automatic adjusting module (6) can perform cooling treatment on the interior of the electric box, and when the humidity in the electric box reaches the set value, the temperature-humidity automatic adjusting module (6) can perform dehumidification treatment on the interior of the electric box;
and the power failure control module (7) is connected with the output end of the circuit protection module (5), and the output end of the power failure control module is connected with the electric load side and used for realizing power failure control of the power supply.
2. The intelligent management system for distribution transformers according to claim 1, characterized in that: the safety protection module (2) comprises an infrared sensor, an A/D conversion module, a first control processor, a solar daylighting panel, an electric energy conversion module, a storage battery, a display, a loudspeaker, a video monitor, a first driving module, a network communication module and terminal equipment, wherein the output end of the solar daylighting panel is connected to the input end of the electric energy conversion module, the output end of the electric energy conversion module supplies power to the display, the loudspeaker and the video monitor or charges the storage battery, the first control processor controls the storage battery or the electric energy conversion module to supply power to the display, the loudspeaker and the video monitor according to specific conditions, the infrared sensor is in signal connection with the first control processor through the A/D conversion module, and the output end of the first control processor is in signal connection with the input ends of the display, the loudspeaker and the video monitor through the first driving module respectively, when the infrared sensor detects that someone enters the set safety range, the first control processor drives the display and the loudspeaker to remind, the video monitor monitors the field construction operation process around the power distribution special equipment (1) in the whole process, the video monitor transmits monitoring contents to the cloud end through the network communication module, and the terminal equipment is connected with the cloud end and used for checking related information contents of real-time monitoring.
3. The intelligent management system for distribution transformers according to claim 1, characterized in that: the power supply switching module (3) comprises a first double-head knife switch, the first double-head knife switch comprises a first knife switch (31), a first fixed contact (32), a first movable contact (33) of the first double-head knife switch and a second movable contact (34) of the first double-head knife switch, one end of the first knife switch (31) is hinged to the first fixed contact (32), the first movable contact (33) of the first double-head knife switch is connected with a distribution transformer, the second movable contact (34) of the first double-head knife switch is used for being connected with a standby power supply, the first fixed contact (32) is connected with the circuit protection module (5), and switching of a main power supply or the standby power supply is achieved by switching connection of the first knife switch (31) and the first movable contact (33) of the first double-head knife switch or the second movable contact (34) of the first double-head knife switch.
4. The intelligent management system for distribution transformers according to claim 1, characterized in that: the electric leakage alarm module (9) comprises a zero sequence current detection module, a step voltage detection module, a second control processor, a first wireless communication module and a first field alarm module, wherein the output ends of the zero sequence current detection module and the step voltage detection module are respectively in signal connection with the input end of the second control processor, and the output end of the second control processor is respectively in signal connection with the first wireless communication module and the first field alarm module; the zero sequence current detection module is used for detecting the electric leakage condition of the low-voltage line and transmitting detection data to the second control processor, and when the electric leakage condition of the line is found, the second control processor triggers the first wireless communication module to feed the electric leakage condition of the line back to a mobile phone of an attendant and triggers the first field alarm module to start; the step voltage detection module is used for detecting step voltage of the ground around the special power distribution equipment (1) and transmitting detection data to the second control processor, when the step voltage is larger than or equal to a set value, the step voltage is regarded as electric leakage, at the moment, the second control processor triggers the first wireless communication module to feed back the electric leakage condition of the circuit to a mobile phone of an operator on duty, and triggers the first field alarm module to start.
5. The intelligent management system for distribution transformers according to claim 1, characterized in that: the water level monitoring and positioning alarm module (4) comprises a water level monitoring and detecting device, a third control processor, a second wireless communication module and a second field alarm module, wherein the output end of the water level monitoring and detecting device is in signal connection with the input end of the third control processor, and the output end of the third control processor is in signal connection with the second wireless communication module and the second field alarm module respectively; the water level monitoring and detecting device is used for detecting the water level of the ground around the special power distribution equipment (1) and transmitting detection data to the third control processor, when the water level of the ground around the special power distribution equipment (1) is detected to reach a set water level, the third control processor triggers the second wireless communication module to feed back the line leakage situation to a mobile phone of an operator on duty and triggers the second field alarm module to start, the output end of the third control processor is also connected with a wireless transmitting module, the third control processor controls the intelligent switch (8) to be switched off through the wireless transmitting module, and the power supply of the public power grid incoming line end of the special power distribution equipment (1) is automatically cut off; the water level monitoring and detecting device is powered by the solar power supply module.
6. The intelligent management system for distribution transformers according to claim 5, characterized in that: the intelligent switch (8) comprises a magnetic control switch, a magnetic control driving circuit, a microprocessor and a wireless receiving module, wherein the output end of the wireless receiving module is connected with the input end of the microprocessor, the wireless receiving module is used for receiving a wireless signal sent by the wireless transmitting module and transmitting the signal to the microprocessor, the output end of the microprocessor controls the action of the magnetic control switch through the magnetic control driving circuit, when the water level monitoring and positioning alarm module (4) detects that the water level of the ground around the power distribution special equipment (1) reaches a set value, the third control processor sends an instruction of disconnecting the switch to the intelligent switch (8) through the wireless transmitting module, the intelligent switch (8) is automatically disconnected, and a high-voltage power supply provided by a public power grid is cut off.
7. The intelligent management system for distribution transformers according to claim 3, characterized in that: the circuit protection module (5) comprises a power supply module for providing a direct-current power supply, a phase-failure fault detection module, an overvoltage fault detection module, an undervoltage fault detection module, a fourth control processor, a silicon controlled rectifier, an electromagnetic switch unit K and a second drive module for controlling the silicon controlled rectifier, wherein the input end of the power supply module is connected with a first static contact (32) of a first double-head knife switch, and the output end of the power supply module is respectively connected with the fourth control processor, the second drive module and the silicon controlled rectifier; the input ends of the open-phase fault detection module, the overvoltage fault detection module and the under-voltage fault detection module are respectively connected with a first static contact (32) of a first double-head knife switch, and the output ends of the open-phase fault detection module, the overvoltage fault detection module and the under-voltage fault detection module are connected with a fourth control processor so that the fourth control processor can judge whether the output voltage of the special power distribution equipment (1) is open-phase, overvoltage or undervoltage; the input end of the second driving module is connected with the fourth control processor, and the output end of the second driving module is connected with the controlled silicon; the electromagnetic switch unit K is connected between the first fixed contact (32) and the power failure control module (7) so as to selectively switch on or switch off a power supply; and the fourth control processor judges whether the power supply is in phase failure, overvoltage or undervoltage or not and outputs an attraction signal or a release signal to the second driving module according to the judgment result, and the second driving module controls the conduction or the cut-off of the silicon controlled rectifier, so that the electromagnetic switch unit K is controlled to trip or close.
8. The intelligent management system for distribution transformers according to claim 7, characterized in that: the power failure control module (7) comprises a second double-ended knife switch connected between the electric load side and the electromagnetic switch unit K of the circuit protection module (5), the second double-head knife switch comprises a second knife switch (71), a second fixed contact (72), a first moving contact (73) of the second double-head knife switch and a second moving contact (74) of the second double-head knife switch, one end of the second knife switch (71) is hinged on the second fixed contact (72), the first moving contact (73) of the second double-head knife switch is connected with an electromagnetic switch unit K, the second moving contact (74) of the second double-head knife switch is used for connecting the ground wire, the second fixed contact (72) is connected with the electric load side, the power failure control of the power supply is realized by switching the connection between the second knife switch (71) and the first moving contact (73) of the second double-head knife switch or the second moving contact (74) of the second double-head knife switch.
9. The intelligent management system for distribution transformers according to claim 1, characterized in that: the temperature-humidity automatic adjusting module (6) comprises a temperature detection sensor, a humidity detection sensor, a fifth control processor, a fan, a dehumidifier and a third driving module for driving the fan and the dehumidifier, wherein the temperature detection sensor and the humidity detection sensor are used for detecting the temperature and the humidity in an electric box of the special power distribution equipment (1), the signal output ends of the temperature detection sensor and the humidity detection sensor are respectively connected with the signal input end of the fifth control processor through an A/D (analog/digital) conversion module and transmit detection data to the fifth control processor, and the signal output end of the fifth control processor is respectively connected with the fan and the dehumidifier through a third driving module; when the temperature detection sensor detects that the temperature in the electric box is higher than a set value, the fifth control processor sends a signal for driving the fan to start so as to reduce the temperature in the electric box; when the humidity detection sensor detects that the humidity in the electric box is higher than a set value, the fifth control processor sends a signal for driving the dehumidifier to start so as to keep the inside of the electric box dry.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984123A (en) * | 2021-10-28 | 2022-01-28 | 重庆海装风电工程技术有限公司 | Transformer-based state monitoring method and system and electronic equipment |
| CN114221233A (en) * | 2021-12-17 | 2022-03-22 | 重庆和视科技发展有限公司 | Wisdom safety power consumption circuit arrangement system has |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984123A (en) * | 2021-10-28 | 2022-01-28 | 重庆海装风电工程技术有限公司 | Transformer-based state monitoring method and system and electronic equipment |
| CN114221233A (en) * | 2021-12-17 | 2022-03-22 | 重庆和视科技发展有限公司 | Wisdom safety power consumption circuit arrangement system has |
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