CN103094845B - Intelligent power-saving inlet wire main cabinet - Google Patents
Intelligent power-saving inlet wire main cabinet Download PDFInfo
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- CN103094845B CN103094845B CN201110344601.0A CN201110344601A CN103094845B CN 103094845 B CN103094845 B CN 103094845B CN 201110344601 A CN201110344601 A CN 201110344601A CN 103094845 B CN103094845 B CN 103094845B
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Abstract
The invention discloses an intelligent power-saving inlet wire main cabinet, and relates to an electric control cabinet. A closed loop integrated electronic circuit is connected with each control circuit of the power-saving inlet wire main cabinet, so that the intelligent power-saving inlet wire main cabinet can achieve intelligent centralized control and is fast in human-computer interface response, high in sensitivity and provided with an error correction function. An energy-saving machine core is connected to a main loop in series, and a purpose of power saving is achieved through automatic on-line switchover of a power-saving loop and a bypass. The intelligent power-saving inlet wire main cabinet can save active energy by 6%-15% for a user and can enable the capacity of a power distribution transformer to be increased by around 10%, and meanwhile can greatly reduce electromagnetic noise and temperature rise of the power distribution transformer and a power distribution room, noise and temperature rise of an electromotor and temperature rise of electric wires and cables, and therefore service life of the intelligent power-saving inlet wire main cabinet is prolonged. A power-saving device and the inlet wire main cabinet are combined into a whole so that the intelligent power-saving inlet wire main cabinet has the advantages of being good in intelligent power-saving effect, small in occupied area, long in service life and high in reliability. Two intelligent low-voltage circuit breakers are adopted by the intelligent power-saving inlet wire main cabinet so that a protection circuit is added to a power supply loop, and stability and reliability of a main circuit are increased.
Description
Technical field
The present invention relates to a kind of electrical control cabinet, the total cabinet of a kind of intelligent energy-saving inlet wire particularly battery saving arrangement and total input-wire cabinet united two into one; The total cabinet of this intelligent energy-saving inlet wire adapts to the low-tension switch cabinet of all models, uses as smart incoming line and economize on electricity.
Background technology
China reform and opening-up since, national economy is increased fast, has become the main flow of the current industrial development of China with " scientific and technical innovation, autonomous innovation ", China's industry progressively to intensive style, energy-saving and emission-reduction, the future development of low-carbon (LC).Along with global economy development, energy resource consumption constantly aggravates, and wherein electric energy loss accounts for very large ratio, and waste of energy has become the more and more serious problem that each enterprise faces.Enterprise is reduced costs by saves energy, be the most feasible, benefit is maximum, simultaneously energetic again a solution, also means that enterprise goes ahead of the rest in the market competition of fierceness.Along with the increase of enterprise's distribution complexity, the staff of distribution center needs to obtain more information, accurately to grasp the running status of electrical network.Simultaneously for improving the reliability of electric power system, require more to adopt long-distance centralized control, operation, operation conditions display and fault alarm system for prompting, and progressively adopt unattended management mode, to improve labor productivity, reduce the probability of mistake action, improve operational reliability.Switch cubicle in the market, only payes attention to the basic switch controlling functions of electric power distribution, ignores the consideration of saves energy.When electricity consumption in order to saves energy, need to configure special electricity-saving cabinet, two kinds of equipment use simultaneously, add the floor space of equipment, too increase the probability of makeing mistakes.In order to provide a practical electric energy management pattern to enterprise, one need be worked out there is intellectuality, the total cabinet of inlet wire of saves energy, meet the requirement of Chinese Enterprises development, be the inexorable trend of enterprise's distribution management monitoring technique development, meet the direction that national energy-saving reduces discharging development.In order to address this problem, the scientific and technical personnel of R&D institution and electric power system, in constantly research, exploration, utilize modern science and technology, although achieve some progress technically, still there is the technical barrier not yet overcome in practice.
Summary of the invention
The object of the invention is to overcome above deficiency, there is provided a kind of intelligent energy-saving inlet wire total cabinet, this cabinet is installed on the output of transformer, closed loop integrated electronic circuit is adopted to be connected with each control circuit of the total cabinet of economize on electricity inlet wire, realize intelligent centralized control, man-machine interface response is fast, highly sensitive, has error correction.Economize on electricity movement is series in major loop, is switched by economize on electricity loop and bypass automatic on-line, reach the object of economize on electricity.When breaking down in loop of economizing on electricity, bypass can be automatically switched to by bypass inlet wire intelligent low voltage circuit breaker and running, in handoff procedure, can uninterrupted power supply be accomplished; Otherwise, when bypass is broken down, automatically switched in economize on electricity loop by main inlet wire intelligent low voltage circuit breaker, neither affect production, again saves energy, reach dual intensity effect.
The technical solution adopted for the present invention to solve the technical problems is: comprise casing, digital ammeter, Intelligent electric parametric synthesis detector, digital voltmeter, three phase mains indicator light, colored Intelligent touch controls display screen, main inlet wire intelligent low voltage circuit breaker, bypass inlet wire intelligent low voltage circuit breaker, copper bus-bar, intelligent low voltage circuit breaker, economize on electricity movement, cooling fan, economize on electricity loop, bypass, three-limb core, casing is a rectangular shape, casing front upper is provided with digital ammeter successively, Intelligent electric parametric synthesis detector, digital voltmeter, the below of Intelligent electric parametric synthesis detector is provided with three three phase mains indicator lights, the below of three phase mains indicator light is provided with colored Intelligent touch and controls display screen, colored Intelligent touch controls to be provided with main inlet wire intelligent low voltage circuit breaker below display screen, bypass inlet wire intelligent low voltage circuit breaker, the side, inside of casing is provided with copper bus-bar, the inside of casing is divided into two-layer by one piece of dividing plate, for the upper and lower, upper strata forward part is provided with intelligent low voltage circuit breaker, and underclad portion is provided with the input of economize on electricity movement, output potential control switch, is provided with cooling fan bottom box house, copper bus-bar connects two intelligent low voltage circuit breaker, wherein main inlet wire intelligent low voltage circuit breaker exports economize on electricity movement to, and economize on electricity movement exports each feeding circuit to and completes power-saving running, constitutes the total cabinet of a kind of intelligent energy-saving inlet wire.
Above-mentioned economize on electricity movement is linked together by a series reactor and a fixed voltage regulator of self coupling in parallel and be fixed on same three-limb core, three-limb core is provided with main coil I-A, I-B, I-C, II-A, II-B, II-C, Voltage Cortrol coil I-a, I-b, I-c, adjustment phase coil R, S, T, by Z-shaped method for winding by coil winding on three-limb core.
The technology used in the present invention principle is: adopt closed loop integrated electronic circuit to be connected with each control circuit of the total cabinet of economize on electricity inlet wire, realize intelligent centralized control, man-machine interface response is fast, highly sensitive, has error correction.Economize on electricity movement is series in major loop, is switched by economize on electricity loop and bypass automatic on-line, reach the object of economize on electricity.This cabinet operates in economize on electricity loop state or all electric power of bypass condition detects and protection all one should be complete.Economize on electricity loop and bypass loop have all been equipped with intelligent low voltage circuit breaker.Intelligent low voltage circuit breaker is divided into main inlet wire intelligent low voltage circuit breaker and bypass inlet wire intelligent low voltage circuit breaker.The below of Intelligent electric parametric synthesis detector is provided with three three phase mains indicator lights, is respectively yellow, green, red.The Intelligent electric parametric synthesis detector that casing front upper is provided with, can show three phases active power, three phase reactive power, three-phase active current, three-phase reactive current, three-phase activity coefficient, three-phase active energy (KW/h), three-phase reactive energy (Kvar/h), the display of 1-20 subharmonic voltage electric current, frequency, zero-sequence current, Pinggu, multi tariff peak set arbitrarily, real-time clock date, electric energy are accumulative, the data message of above display all transfers to backstage computer display print record by monitor RS-485, RS-232 serial port.Application Modbus (RTU, ASCII) communication protocol, light networking.See that three-phase current, three-phase voltage are provided with three-phase digital ammeter, three-phase digital voltmeter and three phase mains indicator light in the both sides of Intelligent electric parametric synthesis detector intuitively for the ease of user.By the software run on PC or data acquisition system, the electric energy management scheme of the practicality of an industrial enterprise or building service can be provided.The below of three phase mains indicator light is provided with colored Intelligent touch and controls display screen, i.e. XGTPanel man-machine interface, screen can show: 1. normality shows a circuit conceptual scheme, and economize on electricity loop, bypass all can show (being Real time dynamic display); 2. economize on electricity loop, the separating brake of bypass inlet wire intelligent low voltage circuit breaker, combined floodgate, storage energy operation situation is shown; 3. show power-saving running, bypass runs, operation push-button out of service; 4. the display of fan operation icon is simulated; 5. show economize on electricity movement three-phase winding (A, B, C) operating temperature respectively and (when exceeding design temperature, automatically start cooling fan; When thermo-field thoery, automatically switch to bypass and run, and energy automatic alarm, be not damaged to protect economize on electricity movement; The bound of temperature can sets itself); 6. main inlet wire intelligent low voltage circuit breaker can be shown by RS-485, RS-232 interface, the fault such as overload protection (long delay), heavy overload protection (short time delay), short-circuit protection (quick-break), overvoltage under voltage protection, earth fault, under-frequency, phase shortage of bypass inlet wire intelligent low voltage circuit breaker, has error correction; And can with GPRS form, fault be sent on the mobile phone of maintenance personal in the mode of note again by accessing Internet, remind maintenance personal to carry out Maintenance and Repair in time; Equipment also has programmable functions, remote measurement, remote signalling, remote control, shakes conditioning function.The economize on electricity movement of this cabinet inside adopts the principle of electromagnetic balance, power supply is not met the three-phase voltage of the quality of power supply, three-phase current, harmonic wave, surge, wink flows, the power supply of transition, becomes colory three phase mains and exports to power consumption equipment, electrical energy saving, extend power consumption equipment useful life, guarantee using electricity system operational reliability, reduce the floor space of equipment simultaneously, cost-saving, reduce workload.The Z-type three phase excitation coil of economize on electricity movement adopts embedded, magnetic flux meets on same special three-limb core mutually, identical with the coil flux of ortho position phase, the wiring of sense of current opposite way, neutral current with high order harmonic component, unbalanced factor is cancelled out each other, magnetic potential is balanced.The inside of economize on electricity movement, still with reverse magnet exciting coil, has been augmented reactive power compensation amount, has been improve power factor and saved electric energy, and the starting current of the motor that can decline to a great extent, effective filtering major part three, five, the seventh harmonic.
Beneficial effect of the present invention is: adopt closed loop integrated electronic circuit to be connected with each control circuit of the total cabinet of economize on electricity inlet wire, realize intelligent centralized control, man-machine interface response is fast, highly sensitive, has error correction.Economize on electricity movement is series in major loop, is switched by economize on electricity loop and bypass automatic on-line, reach the object of economize on electricity.The total cabinet of a kind of intelligent energy-saving inlet wire can save user's active energy 6%-15%, electricity distribution power transformer increase-volume about 10% can be made, this cabinet significantly can reduce electromagnetic noise and the temperature rise of electricity distribution power transformer and power distribution room simultaneously, the noise of motor and temperature rise, the temperature rise of electric wire, cable, extends useful life; Battery saving arrangement and total input-wire cabinet unite two into one by this cabinet, and intelligent energy-saving is effective, have the advantage that floor space is little, the life-span is long, reliability is high.The total cabinet of a kind of intelligent energy-saving inlet wire employs two intelligent low voltage circuit breaker, made current supply circuit many one ensure circuit, add the stability of total line, reliability.
Accompanying drawing explanation
Here further describes the present invention in conjunction with the accompanying drawings and embodiments:
Fig. 1 is the external structure schematic diagram of the total cabinet of a kind of intelligent energy-saving inlet wire
Fig. 2 is the internal structure schematic diagram of the total cabinet of a kind of intelligent energy-saving inlet wire
Fig. 3 is the left inlet wire major loop structure schematic diagram of the total cabinet of a kind of intelligent energy-saving inlet wire
Fig. 4 is the right inlet wire major loop structure schematic diagram of the total cabinet of a kind of intelligent energy-saving inlet wire
Fig. 5 is the economize on electricity movement surface structure schematic diagram of the total cabinet of a kind of intelligent energy-saving inlet wire
Fig. 6 is the economize on electricity movement circuit principle schematic of the total cabinet of a kind of intelligent energy-saving inlet wire
In the drawings: 1. casing, 2. digital ammeter, 3. Intelligent electric parametric synthesis detector, 4. digital voltmeter, 5. three phase mains indicator light, 6. colored Intelligent touch control display screen, 7. main inlet wire intelligent low voltage circuit breaker, 8. bypass inlet wire intelligent low voltage circuit breaker, 9. copper bus-bar, 10. intelligent low voltage circuit breaker, 11. economize on electricity movements, 12. cooling fans, 13. economize on electricity loops, 14. bypasses, 15. three-limb cores.
Embodiment
In Fig. 1, Fig. 2: casing 1 is in a rectangular shape, casing 1 front upper is provided with digital ammeter 2, Intelligent electric parametric synthesis detector 3, digital voltmeter 4 successively, the below of Intelligent electric parametric synthesis detector 3 is provided with three three phase mains indicator lights 5, the below of three phase mains indicator light 5 is provided with colored Intelligent touch and controls display screen 6, and colored Intelligent touch controls to be provided with main inlet wire intelligent low voltage circuit breaker 7, bypass inlet wire intelligent low voltage circuit breaker 8 below display screen 6; The side, inside of casing 1 is provided with copper bus-bar 9, the inside of casing 1 is divided into two-layer by one piece of dividing plate, for the upper and lower, upper strata forward part is provided with intelligent low voltage circuit breaker 10, underclad portion be provided with economize on electricity movement 11 input, output potential control switch, casing 1 interior bottom portion is provided with cooling fan 12, copper bus-bar 9 connects two intelligent low voltage circuit breaker 10, wherein main inlet wire intelligent low voltage circuit breaker 7 exports economize on electricity movement 11 to, economize on electricity movement 11 exports each feeding circuit to and completes power-saving running, constitutes the total cabinet of a kind of intelligent energy-saving inlet wire.
In Fig. 3, Fig. 4, Fig. 5, Fig. 6: above-mentioned economize on electricity movement 11 is linked together by a series reactor and a fixed voltage regulator of self coupling in parallel and be fixed on same three-limb core 15, three-limb core 15 is provided with main coil I-A, I-B, I-C, II-A, II-B, II-C, Voltage Cortrol coil I-a, I-b, I-c, adjustment phase coil R, S, T, by Z-shaped method for winding by coil winding on three-limb core 15.
The total cabinet of a kind of intelligent energy-saving inlet wire, adopt closed loop integrated electronic circuit to be connected with each control circuit of the total cabinet of economize on electricity inlet wire, realize intelligent centralized control, man-machine interface response is fast, highly sensitive, has error correction.Economize on electricity movement is series in major loop, is switched by economize on electricity loop and bypass automatic on-line, reach the object of economize on electricity.This cabinet operates in economize on electricity loop 13 state or all electric power of bypass 14 state detects and protection all one should be complete.Economize on electricity loop 13 and bypass 14 loop have all been equipped with intelligent low voltage circuit breaker 10.Intelligent low voltage circuit breaker 10 is divided into main inlet wire intelligent low voltage circuit breaker 7 and bypass inlet wire intelligent low voltage circuit breaker 8.The below of Intelligent electric parametric synthesis detector 3 is provided with three three phase mains indicator lights 5, is respectively yellow, green, red.The Intelligent electric parametric synthesis detector 3 that casing 1 front upper is provided with, can show three phases active power, three phase reactive power, three-phase active current, three-phase reactive current, three-phase activity coefficient, three-phase active energy (KW/h), three-phase reactive energy (Kvar/h), the display of 1-20 subharmonic voltage electric current, frequency, zero-sequence current, Pinggu, multi tariff peak set arbitrarily, real-time clock date, electric energy are accumulative, the data message of above display all transfers to backstage computer display print record by monitor RS-485, RS-232 serial port.Application Modbus (RTU, ASCII) communication protocol, light networking.See that three-phase current, three-phase voltage are provided with three-phase digital ammeter 2, three-phase digital voltmeter 4 and three phase mains indicator light 5 in the both sides of Intelligent electric parametric synthesis detector 3 intuitively for the ease of user.By the software run on PC or data acquisition system, the electric energy management scheme of the practicality of an industrial enterprise or building service can be provided.The below of three phase mains indicator light is provided with colored Intelligent touch and controls display screen, i.e. XGTPanel man-machine interface, screen can show: 1. normality shows a circuit conceptual scheme, economize on electricity loop 13, bypass 14 all can show (being Real time dynamic display); 2. economize on electricity loop 13, the separating brake of bypass inlet wire intelligent low voltage circuit breaker 8, combined floodgate, storage energy operation situation is shown; 3. show power-saving running, bypass 14 runs, operation push-button out of service; 4. the display of fan operation icon is simulated; 5. show economize on electricity movement 11 three-phase winding (A, B, C) operating temperature respectively and (when exceeding design temperature, automatically start cooling fan 12; When thermo-field thoery, automatically switch to bypass 14 and run, and energy automatic alarm, be not damaged to protect economize on electricity movement 11; The bound of temperature can sets itself); 6. main inlet wire intelligent low voltage circuit breaker 7 can be shown by RS-485, RS-232 interface, the fault such as overload protection (long delay), heavy overload protection (short time delay), short-circuit protection (quick-break), overvoltage under voltage protection, earth fault, under-frequency, phase shortage of bypass inlet wire intelligent low voltage circuit breaker 8, has error correction; And can with GPRS form, fault be sent out on the mobile phone of attendant in the mode of note again by accessing Internet, remind attendant to carry out Maintenance and Repair in time; And there is programmable functions, remote measurement, remote signalling, remote control, shake conditioning function.The economize on electricity movement 11 of this cabinet inside adopts the principle of electromagnetic balance, power supply is not met the three-phase voltage of the quality of power supply, three-phase current, harmonic wave, surge, wink flows, the power supply of transition, becomes colory three-phase and exports to power consumption equipment, electrical energy saving, extend power consumption equipment useful life, guarantee using electricity system operational reliability, reduce the floor space of equipment simultaneously, cost-saving, reduce workload.The Z-type three phase excitation coil of economize on electricity movement 11 adopts embedded, magnetic flux meets on same special three-limb core 15 mutually, identical with the coil flux of ortho position phase, the wiring of sense of current opposite way, neutral current with high order harmonic component, unbalanced factor is cancelled out each other, magnetic potential is balanced.The inside of economize on electricity movement 11, still with reverse magnet exciting coil, has been augmented reactive power compensation amount, has been improve power factor and saved electric energy, and the starting current of the motor that can decline to a great extent, effective filtering major part three, five, the seventh harmonic.
Economize on electricity movement 11 major loop of this cabinet inside is made up of economize on electricity loop 13 and bypass 14, and its structure is determined by the left and right wire leading method from transformer case.Economize on electricity loop 13 is provided with economize on electricity movement 11, and economize on electricity movement 11 is series in major loop, is switched, reach the object of economize on electricity by economize on electricity loop 13 with bypass 14 automatic on-line.
The economize on electricity movement 11 of this cabinet inside is linked together by a series reactor and a fixed voltage regulator of self coupling in parallel and be fixed on same three-limb core 15, the wave arrestment of the higher harmonic components (main 3,5,7 times) sent with abatement power network with timer inside and trap-wave loop.Find out from tie lines structure principle chart: when input voltage T to A-B-C holds, namely voltage join on each group of coil, and from output voltage between series coil and bridging coil.The magnetic flux produced due to the magnet exciting coil in series coil is that the magnetic flux produced by each phase excitation coil meets on same three-limb core 15, magnetic potential on tri-phase iron core post is balanced, quantitatively also roughly equal, thus, balance is have also been obtained at the voltage of output, quantitatively also roughly equal, and be stabilized on set working point.
In sum, the total cabinet of a kind of intelligent energy-saving inlet wire meets the construction of national intelligent grid, the policy of energy-saving and emission-reduction; It can substitute the total cabinet of all low-voltage distribution inlet wires completely, does not take new construction area, and makes electrical network hommization more, intellectuality, high reliability; If domestic low-voltage distribution system all uses this cabinet, good energy-saving efficiency will be brought, for energy-saving and emission-reduction, low-carbon environment-friendly make a due contribution.
Claims (1)
1. the total cabinet of intelligent energy-saving inlet wire, comprise casing, digital ammeter, Intelligent electric parametric synthesis detector, digital voltmeter, three phase mains indicator light, colored Intelligent touch controls display screen, copper bus-bar, intelligent low voltage circuit breaker, economize on electricity movement, cooling fan, economize on electricity loop, bypass, three-limb core, it is characterized in that: casing is a rectangular shape, casing front upper is provided with digital ammeter successively, Intelligent electric parametric synthesis detector, digital voltmeter, the below of Intelligent electric parametric synthesis detector is provided with three three phase mains indicator lights, the below of three phase mains indicator light is provided with colored Intelligent touch and controls display screen, colored Intelligent touch controls to be provided with main inlet wire intelligent low voltage circuit breaker below display screen, bypass inlet wire intelligent low voltage circuit breaker, the side, inside of casing is provided with copper bus-bar, the inside of casing is divided into two-layer by one piece of dividing plate, for the upper and lower, upper strata forward part is provided with intelligent low voltage circuit breaker, intelligent low voltage circuit breaker is divided into described main inlet wire intelligent low voltage circuit breaker and described bypass inlet wire intelligent low voltage circuit breaker, and underclad portion is provided with the input of economize on electricity movement, output potential control switch, the economize on electricity movement major loop of this cabinet inside is made up of economize on electricity loop and bypass, and economize on electricity loop is provided with economize on electricity movement, and economize on electricity movement is series in major loop, is switched, reach the object of economize on electricity by economize on electricity loop and bypass automatic on-line, economize on electricity loop is all connected intelligent low voltage circuit breaker with bypass loop, be provided with cooling fan bottom box house, copper bus-bar connects two intelligent low voltage circuit breaker, and wherein main inlet wire intelligent low voltage circuit breaker exports economize on electricity movement to, and economize on electricity movement exports each feeding circuit to and completes power-saving running, constitutes the total cabinet of a kind of intelligent energy-saving inlet wire, economize on electricity movement is linked together by a series reactor and a fixed voltage regulator of self coupling in parallel and be fixed on same three-limb core, three-limb core is provided with A phase main coil, B phase main coil, C phase main coil, A phase second main coil, B phase second main coil, C phase second main coil, A phase voltage adjustment coil, B phase voltage adjustment coil, C phase voltage adjustment coil, first adjustment phase coil, second adjustment phase coil, the 3rd adjustment phase coil, by Z-shaped method for winding by coil winding on three-limb core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110344601.0A CN103094845B (en) | 2011-11-04 | 2011-11-04 | Intelligent power-saving inlet wire main cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110344601.0A CN103094845B (en) | 2011-11-04 | 2011-11-04 | Intelligent power-saving inlet wire main cabinet |
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| CN103094845A CN103094845A (en) | 2013-05-08 |
| CN103094845B true CN103094845B (en) | 2014-12-17 |
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| CN201110344601.0A Expired - Fee Related CN103094845B (en) | 2011-11-04 | 2011-11-04 | Intelligent power-saving inlet wire main cabinet |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269016A (en) * | 2013-05-24 | 2013-08-28 | 广州供电局有限公司 | Three-phase supply switch box |
| CN104810824A (en) * | 2014-01-26 | 2015-07-29 | 江苏普瑞特科技股份有限公司 | Electrified switching device for an energy-saving cabinet |
| CN105743101A (en) * | 2016-03-07 | 2016-07-06 | 浙江涌原新能科技有限公司 | Power saving device for large power equipment |
| CN109886612A (en) * | 2019-04-25 | 2019-06-14 | 威海智拓节能科技有限公司 | A kind of online energy conservation verifying system and method for high-low pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038762Y (en) * | 2007-03-22 | 2008-03-19 | 李志宏 | Left-lift separated low-voltage feed cabinet main circuit |
| CN201075583Y (en) * | 2007-07-18 | 2008-06-18 | 沈阳电科电器制造厂 | New type power saving motivation distribution box |
| CN101847831A (en) * | 2010-05-18 | 2010-09-29 | 江苏斯菲尔电气股份有限公司 | Power distribution cabinet |
| CN202840292U (en) * | 2011-11-04 | 2013-03-27 | 江苏普瑞特科技股份有限公司 | Intelligent power saving incoming line main cabinet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003219522A (en) * | 2002-01-24 | 2003-07-31 | Nissin Electric Co Ltd | Switch gear |
| CN101982913A (en) * | 2010-09-16 | 2011-03-02 | 镇江船舶电器有限责任公司 | Shore connection box |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038762Y (en) * | 2007-03-22 | 2008-03-19 | 李志宏 | Left-lift separated low-voltage feed cabinet main circuit |
| CN201075583Y (en) * | 2007-07-18 | 2008-06-18 | 沈阳电科电器制造厂 | New type power saving motivation distribution box |
| CN101847831A (en) * | 2010-05-18 | 2010-09-29 | 江苏斯菲尔电气股份有限公司 | Power distribution cabinet |
| CN202840292U (en) * | 2011-11-04 | 2013-03-27 | 江苏普瑞特科技股份有限公司 | Intelligent power saving incoming line main cabinet |
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