CN107167756B - Main loop guide rod for sleeve type rheological test - Google Patents
Main loop guide rod for sleeve type rheological test Download PDFInfo
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- CN107167756B CN107167756B CN201710469667.XA CN201710469667A CN107167756B CN 107167756 B CN107167756 B CN 107167756B CN 201710469667 A CN201710469667 A CN 201710469667A CN 107167756 B CN107167756 B CN 107167756B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to a main loop conducting rod for a sleeve type rheological test, which conducts a primary loop by being connected with a sleeve current transformer to realize the sleeve type rheological test, and comprises the following components: the power module is used for supplying power to the main loop conducting rod; the conduction control module is respectively connected with the power supply module and the sleeve cover of the sleeve current transformer and is used for controlling whether the primary loop is conducted or not; the mechanical conduction module is respectively connected with the conduction control module and a sleeve cover of the sleeve current transformer and is used for conducting the primary loop under the control of the conduction control module; the wiring module is respectively connected with an external power supply, the power supply module, the conduction control module, the sleeve current transformer and the external tester and is used for transmitting external voltage to the power supply module and forming a complete loop of the sleeve type rheological test. Compared with the prior art, the invention has the advantages of high automation performance, simple operation, high safety performance, accurate test result and the like.
Description
Technical Field
The invention relates to the field of sleeve-type rheological routine tests of large power transformers, in particular to a main loop conducting rod for a sleeve-type rheological test.
Background
Bushing rheology (bushing current transformers) is widely used in power transformers of various voltage classes, and its test requires that a primary loop pass through the bushing and then through the current transformer to form a conduction. Because the sleeve current transformer has the characteristics of the sleeve current transformer, a large amount of transformer oil is contained in the sleeve, cover plates at two ends of the sleeve cannot be opened simultaneously, and the problem of large headache of testers is caused by how to rapidly and accurately complete the conduction work of a primary loop during the current transformer test.
At present, power enterprises such as Shanghai, jiangsu, jiangxi and the like all adopt a traditional sleeve current transformer test main loop conduction method: 2 testers are matched with the method in the test site, and extend into the sleeve by means of a grounding flat iron or a metal long rod, and paint on the sleeve cover is dropped, so that the grounding flat iron or the metal long rod and the sleeve cover are contacted together, and then the conduction of a main loop of a current transformer test is measured by using a universal meter. The test personnel spend a great deal of time and effort on the work of conducting the main circuit, and in fact, the time spent on conducting the main circuit once by large-scale sleeve-type rheology in extra-high voltage engineering exceeds the time spent on formal tests. Therefore, a novel main loop conduction tool for sleeve-type rheological test, which meets the requirement of test measurement precision and completes the main loop conduction work on the basis of convenience, rapidness, accuracy and safety, needs to be developed.
Disclosure of Invention
The invention aims to solve the problems and provide a main circuit guide rod for a sleeve type rheological test.
The aim of the invention can be achieved by the following technical scheme:
a main loop conduction rod for a sleeve-type rheology test, which conducts a primary loop by being connected with a sleeve current transformer to realize the sleeve-type rheology test, the main loop conduction rod comprising:
the power module is used for supplying power to the main loop conducting rod;
the conduction control module is respectively connected with the power supply module and the sleeve cover of the sleeve current transformer and is used for controlling whether the primary loop is conducted or not;
the mechanical conduction module is respectively connected with the conduction control module and a sleeve cover of the sleeve current transformer and is used for conducting the primary loop under the control of the conduction control module;
the wiring module is respectively connected with an external power supply, the power supply module, the conduction control module, the sleeve current transformer and the external tester and is used for transmitting external voltage to the power supply module and forming a complete loop of the sleeve type rheological test.
The conduction control module includes:
the conduction detection circuit is respectively connected with the power supply module, the sleeve cover of the sleeve current transformer and the mechanical conduction module and is used for detecting whether the conduction of the primary loop is finished;
and the conduction control circuit is respectively connected with the power supply module, the conduction detection circuit and the mechanical conduction module and is used for controlling the working state of the mechanical conduction module according to the detection result of the conduction detection circuit.
The on detection circuit comprises an on triode and an intermediate relay which are sequentially connected, the on triode is connected with the power module, the intermediate relay is connected with the on control circuit, when the primary loop is not conducted, the on triode is cut off, the intermediate relay is disconnected, and when the primary loop is conducted, the on triode, the intermediate relay, the mechanical on module, the sleeve cover and the power module form a loop together, and the intermediate relay is closed.
The conduction detection circuit further comprises a light emitting diode, and the light emitting diode, the mechanical conduction module, the sleeve cover and the power module form a loop together when the primary loop is conducted, and the light emitting diode is in a light emitting state.
The conduction control circuit comprises a first switch and a second switch which are connected in series, the first switch is connected with the power supply module, the second switch is respectively connected with the conduction detection circuit and the mechanical conduction module, and the second switch is closed when the primary loop is not conducted and is opened when the primary loop is conducted according to the detection result of the conduction detection circuit.
The mechanical conduction module includes:
the motor is connected with the conduction control module and is used for generating power for realizing conduction of the primary loop according to the detection result of the conduction control module;
the drill bit is connected with the sleeve cover and used for drilling through an insulating layer of the sleeve cover so as to realize the conduction of the primary loop;
and the link brush is respectively connected with the motor, the drill bit and the conduction control module and is used for forming a passage with the conduction control module, and the auxiliary conduction control module detects whether the primary loop is conducted or not.
The power module includes:
an external power supply terminal connected with an external power supply through a wiring module and used for receiving externally provided voltage;
the transformer is respectively connected with the external power supply terminal and the conduction control module and is used for converting the voltage received by the external power supply terminal into the working voltage of the conduction control module and supplying power to the conduction control module;
and the storage battery is respectively connected with the transformer and the conduction control module, is used for storing surplus electric energy provided by an external power supply and supplies power for the conduction control module when the external power supply terminal is not connected with the external power supply.
The power supply module further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is respectively connected with the transformer and the conduction control module.
The wiring module includes:
the power interface is respectively connected with the power module and an external power supply and is used for transmitting electric energy provided by the external power supply to the power module;
an external tester terminal connected with the external tester for forming a complete loop of the sleeve-type rheological test;
and the connection terminal of the conduction control module is respectively connected with the conduction control module and the sleeve current transformer and is used for forming a passage with the conduction control module, and the auxiliary conduction control module detects whether the primary loop is conducted or not.
The main loop conducting rod further comprises a hollow insulating rod body, the power module, the conducting control module, the mechanical conducting module and the wiring module are all arranged inside the hollow insulating rod body, the mechanical conducting module is located at the first end of the hollow insulating rod body, and the power module, the conducting control module and the wiring module are all located at the second end of the hollow insulating rod body.
Compared with the prior art, the invention has the following beneficial effects:
(1) The power module is matched with the wiring module to supply power for the mechanical conduction module, so that the mechanical conduction module removes an insulating layer on a sleeve cover of the sleeve current transformer in a working state, and meanwhile, the conduction control module can automatically control the mechanical conduction module to stop working after the insulating layer is removed, thereby reducing the working intensity and working time of test personnel on a conduction main loop and having high degree of automation.
(2) The conduction control module comprises a conduction detection circuit and a conduction control circuit, whether the circuit is conducted or not is detected through the conduction detection circuit, the working state of the mechanical conduction module is controlled through the conduction control module, and full-automatic control of the mechanical conduction module is achieved through cooperation of the conduction detection circuit and the conduction control circuit without manual monitoring.
(3) The conduction detection circuit is realized through the intermediate relay and the conduction triode, whether the insulating layer on the sleeve cover is completely removed can be judged through the on-off state of the loop, the detection method is simple and easy to realize, and the practicability is high.
(4) The turn-on detection circuit also comprises a light emitting diode, when the primary loop is turned on, the light emitting diode can be directly used for prompting the testers that the loop is turned on, so that the testers can conveniently judge the turn-on, and when the main loop is turned off due to the fact that the turn-on rod is misplaced and scratched at the contact point of the turn-on rod and the sleeve cover, the turn-on origin can be returned by means of the indication of the light emitting diode.
(5) The on control circuit comprises a first switch and a second switch which are connected in series, artificial loop on control is realized through the first switch, on-off control under an automatic detection result is realized through the second switch, and on-off control with high automation degree and high safety performance is realized through the mutual cooperation of the first switch and the second switch.
(6) The mechanical conduction module comprises a motor, a drill bit and a link brush, an insulating layer on a sleeve cover is removed through the motor matched with the drill bit, the working intensity of workers is relieved, a passage is formed by the link brush and the conduction control module, and therefore the detection function of the conduction control module on whether a loop is conducted or not is achieved.
(7) The power module comprises an external power supply terminal, a transformer and a storage battery, wherein the external power supply terminal is matched with the transformer to realize external power supply of the main loop conducting rod, and the storage battery stores electric energy, so that the power module directly supplies power to the main loop conducting rod when the external wiring is inconvenient, and the power supply mode is flexible and high in practicability.
(8) The power module further comprises a voltage stabilizing circuit, stable voltage is provided for the conduction control module, and the working stability and the working precision of the main loop conduction rod are improved.
(9) The wiring module comprises a power interface, an external tester wiring terminal and a conduction control module wiring terminal, and can directly connect the main wiring of the tester of the current transformer to the main loop conduction rod, so that the wiring is simple, the operation is convenient, and the sleeve type rheological test is convenient to carry out.
(10) The outside of main loop switch-on pole is hollow insulating body of rod, and inside use 12V direct current switch-on operating voltage, 5V direct current break-make detection voltage accords with the electricity safety rule under the special environment in the national electric wire netting safety operation rule completely, has stopped electric shock risk factor in many aspects, and the security is high.
Drawings
FIG. 1 is an internal construction view of a main circuit continuity rod;
FIG. 2 is an external structural view of the main circuit via rod;
FIG. 3 is a schematic diagram of a power module;
FIG. 4 is a schematic diagram of a mechanical conduction module;
FIG. 5 is a schematic diagram of a wiring module;
FIG. 6 is a schematic diagram of a turn-on detection circuit;
FIG. 7 is a schematic diagram of a conduction control circuit
Wherein 1 is a power module, 2 is a conduction control module, 3 is a mechanical conduction module, 5 is an external tester, 11 is a transformer, 12 is a storage battery, 13 is a voltage stabilizing circuit, 21 is an intermediate relay, 22 is a conduction triode, 23 is a light emitting diode, 24 is a voltage stabilizing diode, 31 is a motor, 32 is a drill bit, 33 is a link brush, 41 is a power interface, 42 is an external tester terminal, and 43 is a conduction control module terminal.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
The embodiment provides a main loop conduction pole for sleeve type rheology test, carries out the switching on of primary loop through being connected with sleeve type current transformer, realizes sleeve type rheology test, and this main loop conduction pole includes: the power module 1 is used for supplying power to the main loop conducting rod; the conduction control module 2 is respectively connected with the power supply module 1 and a sleeve cover of the sleeve current transformer and is used for controlling whether the primary loop is conducted or not; the mechanical conduction module 3 is respectively connected with the conduction control module 2 and a sleeve cover of the sleeve current transformer and is used for conducting a primary loop under the control of the conduction control module 2; the wiring module is respectively connected with an external power supply, the power supply module 1, the conduction control module 2, the sleeve current transformer and the external tester 5 and is used for transmitting external voltage to the power supply module 1 and forming a complete loop of the sleeve type rheological test.
Wherein, the conduction control module 2 includes: the conduction detection circuit is respectively connected with the power supply module 1, the sleeve cover of the sleeve current transformer and the mechanical conduction module 3 and is used for detecting whether the conduction of the primary loop is finished; and the conduction control circuit is respectively connected with the power module 1, the conduction detection circuit and the mechanical conduction module 3 and is used for controlling the working state of the mechanical conduction module 3 according to the detection result of the conduction detection circuit. The conduction detection circuit comprises a conduction triode 22 and an intermediate relay 21 which are sequentially connected, the conduction triode 22 is connected with the power supply module, the intermediate relay 21 is connected with the conduction control circuit, when the primary loop is not conducted, the conduction triode 22 is cut off, the intermediate relay 21 is disconnected, when the primary loop is conducted, the conduction triode 22, the intermediate relay 21, the mechanical conduction module, the sleeve cover and the power supply module form a loop together, the intermediate relay 21 is closed, attractive force is generated on a second switch of the conduction control circuit, and the second switch is disconnected. The conduction detection circuit further comprises a light emitting diode 23, when the primary circuit is conducted, the light emitting diode 23 forms a circuit together with the mechanical conduction module 3, the sleeve cover and the power module 1, and is in a light-emitting state, meanwhile, two ends of the intermediate relay 21 are connected with the voltage stabilizing diode 24, and in the process that the mechanical conduction module 3 conducts the sleeve cover insulating layer, the drill bit rotates to peel off the insulating layer, and can form high-frequency electric on-off with the sleeve shell, so that the intermediate relay 21 is powered on and powered off for a plurality of times in the moment, and the parallel reverse voltage stabilizing diode 24 can prevent overvoltage on two sides of the intermediate relay 21, and avoid burning out of the intermediate relay 21. The conduction control circuit comprises a first switch and a second switch which are connected in series, the first switch is connected with the power module 1, the second switch is respectively connected with the conduction detection circuit and the mechanical conduction module 3, and the second switch is closed when the primary loop is not conducted and is opened when the primary loop is conducted according to the detection result of the conduction detection circuit. The mechanical conduction module 3 includes: a motor 31 connected to the conduction control module 2, for generating power for realizing conduction of the primary circuit according to a detection result of the conduction control module 2; the drill bit 32 is connected with the sleeve cover and used for drilling through an insulating layer of the sleeve cover so as to realize the conduction of the primary circuit; the link brushes 33 are respectively connected with the motor 31, the drill 32 and the conduction control module 2, and are used for forming a passage with the conduction control module 2, and the auxiliary conduction control module 2 detects whether the primary circuit is conducted. The power supply module 1 includes: an external power supply terminal connected with an external power supply through a wiring module and used for receiving externally provided voltage; the transformer 11 is respectively connected with the external power supply terminal and the conduction control module 2 and is used for converting the voltage received by the external power supply terminal into the working voltage of the conduction control module 2 and supplying power to the conduction control module 2; and the storage battery is respectively connected with the transformer 11 and the conduction control module 2, and is used for storing surplus electric energy provided by an external power supply and supplying power to the conduction control module 2 when the external power supply terminal is not connected with the external power supply. The power module 1 further comprises a voltage stabilizing circuit, and the voltage stabilizing circuit is respectively connected with the transformer 11 and the conduction control module 2. The wiring module includes: a power interface 41 connected to the power module 1 and an external power source, respectively, for transmitting electric power supplied from the external power source to the power module 1; an external tester terminal 42 connected to the external tester 5 for forming a complete loop of the sleeve-type rheology test; the connection terminal 43 of the conduction control module is respectively connected with the conduction control module 2 and the sleeve current transformer, and is used for forming a passage with the conduction control module 2, and the auxiliary conduction control module 2 detects whether the primary loop is conducted or not. The main loop conducting rod further comprises a hollow insulating rod body, the power module 1, the conducting control module 2, the mechanical conducting module 3 and the wiring module are all arranged in the hollow insulating rod body, the mechanical conducting module 3 is located at the first end of the hollow insulating rod body, and the power module 1, the conducting control module 2 and the wiring module are all located at the second end of the hollow insulating rod body.
According to the above structure, the internal structure and the external structure of the main loop conducting rod realized in this embodiment are shown in fig. 1 and 2, respectively, the cylindrical object in fig. 2 is a hollow insulating rod body, the specific structure inside the hollow insulating rod body is shown in fig. 1, and the internal structure mainly comprises four parts of a power module 1, a conducting control module 2, a mechanical conducting module 3 and a wiring module.
The specific structure of the power module 1 is shown in fig. 3, and the commercial power 220V is transformed and rectified to obtain a 12V secondary direct current power supply. The 12V direct current power supply can charge the battery at the same time to supply power to the working electric part; when 220V commercial power is inconvenient to use, the 12V direct current storage battery can supply power to the working electric part, so that convenience is brought to the working of a transformer substation site when a tester goes out, meanwhile, the conduction control module adopts 5V direct current detection voltage to supply power due to the existence of a voltage stabilizing circuit in the power module, 12V direct current conduction working voltage is used inside, 5V direct current on-off detection voltage completely accords with the power utilization safety regulation in the special environment in the national power grid safety working regulation, and the safety of the device is ensured.
The mechanical conduction module 3 is shown in fig. 4, and mainly consists of a 12V dc motor 31, a drill bit 32, and a most important linking brush 33, wherein a brush is arranged at the front part of the motor to form an electrical connection with a motor shaft, so as to increase the contact area between the drill bit 32 and a cover of a sleeve current transformer when the drill bit 32 drills through paint, and in this embodiment, a drill bit with a larger obtuse angle of the drill bit is selected.
The wiring module is provided with 3 wiring jacks as shown in fig. 5, and 41 is a power input jack of the current conducting rod as shown in fig. 4; and 42 is a first pole terminal of the current transformer tester, 43 is an outlet end of the conducting rod conducting detection functional loop, and is connected to the casing of the sleeve.
The specific structure of the conduction control module 2 is shown in fig. 6 and 7, the conduction control module 2 comprises a conduction detection circuit (fig. 6) and a conduction control circuit (fig. 7), and as seen from fig. 7, when in operation, K1 is pressed down, the loop is conducted, and the 12V direct current motor performs paint drilling operation. K2 is the disconnection node of the loop, paint drill breakage is detected by the conduction detection circuit, and the drill bit 32 is signaled to be disconnected after being in good contact with the cover, so that the motor stops working; in fig. 6, the on-detecting circuit is connected with the parts such as the link brush 33, the link brush 33 is arranged at the front side of the main shaft of the motor 31, and is communicated with the main shaft through a structure similar to the motor brush, the main shaft of the direct current motor 31, the drill bit 32 and the cover are communicated after paint is damaged, and then the channel of an electric signal is realized through the structure of the link brush 33, the on-off detecting circuit is realized, the main circuit of the CT tester is conducted, the 5V power supply which is discharged through the voltage stabilizing circuit (chopper circuit in the embodiment) is conducted, the whole circuit is conducted after the drill bit 32 drills the paint, the intermediate relay 21 is electrified, the normally closed contact of the K2 is disconnected, the motor circuit is deenergized, the paint breaking work is finished, and the work is stopped automatically; meanwhile, the LED lamp is on, which indicates that the main loop is conducted, and a CT test can be started.
The connection mode of the main loop conducting rod in working is specifically as follows: the first pole terminal connection socket of the current transformer tester is connected to the first pole of the test line, the first pole is connected to the casing, the main loop is conducted by the link brush 33, the link brush 33 is arranged in front of the main shaft of the motor 31 instead of behind the main shaft, and therefore, even if a residual excitation electric field exists in the motor after the motor stops working, the first pole and the second pole are not affected in the conducting loop, and the influence of uncertain factors on the test loop is avoided and the accuracy of test data is improved due to the improvement of the simple structure.
According to the wiring mode, the main loop conducting rod is used for conducting the primary loop of the CT tester, and the method comprises the following steps:
s 1) connecting a conduction control module wiring terminal 43, namely a negative terminal of conduction detection (a power failure motor wiring terminal after conduction) to the sleeve by using a wire, and forming electric connection with the shell of the sleeve;
s 2) connecting an external tester terminal 42, i.e., a CT test '+' terminal, to a first end on the CT tester with a wire;
s 3) putting the conducting rod into the casing from the upper end of the detached casing slowly, so that the drill bit 32 at the top of the conducting rod contacts the unopened cover plate at the other side of the casing;
s 4) pressing a power button of the motor of the conducting rod to start the conducting rod, and at the moment, the working power indicator lamp is lighted;
s5) pressing a motor control button for starting the conduction work, completing the conduction work within 2-5S by a conduction rod, and releasing the button after the loop conduction indicator lights are turned on and the motor stops;
s 6) the lighting of the loop conduction indicator lamp in the step s 5) indicates that the main loop conduction work of the CT tester is finished, the second end of the CT tester is connected to the sleeve by a wire and is electrically connected with the shell of the sleeve, and then the CT tester can be opened to set parameters for testing according to the test operation instruction of the tester.
Claims (6)
1. A main loop conducting rod for a sleeve-type rheology test, which conducts a primary loop by being connected with a sleeve current transformer to realize the sleeve-type rheology test, the main loop conducting rod comprising:
the power module is used for supplying power to the main loop conducting rod;
the conduction control module is respectively connected with the power supply module and the sleeve cover of the sleeve current transformer and is used for controlling whether the primary loop is conducted or not;
the mechanical conduction module is respectively connected with the conduction control module and a sleeve cover of the sleeve current transformer and is used for conducting the primary loop under the control of the conduction control module;
the wiring module is respectively connected with an external power supply, the power supply module, the conduction control module, the sleeve current transformer and the external tester and is used for transmitting external voltage to the power supply module and forming a complete loop of the sleeve type rheological test;
the conduction control module includes:
the conduction detection circuit is respectively connected with the power supply module, the sleeve cover of the sleeve current transformer and the mechanical conduction module and is used for detecting whether the conduction of the primary loop is finished;
the conduction control circuit is respectively connected with the power supply module, the conduction detection circuit and the mechanical conduction module and is used for controlling the working state of the mechanical conduction module according to the detection result of the conduction detection circuit;
the conduction control circuit comprises a first switch and a second switch which are connected in series, the first switch is connected with the power supply module, the second switch is respectively connected with the conduction detection circuit and the mechanical conduction module, and the second switch is closed when the primary loop is not conducted and is opened when the primary loop is conducted according to the detection result of the conduction detection circuit;
the mechanical conduction module includes:
the motor is connected with the conduction control module and is used for generating power for realizing conduction of the primary loop according to the detection result of the conduction control module;
the drill bit is connected with the sleeve cover and used for drilling through an insulating layer of the sleeve cover so as to realize the conduction of the primary loop;
the link brush is respectively connected with the motor, the drill bit and the conduction control module and is used for forming a passage with the conduction control module, and the auxiliary conduction control module detects whether the primary loop is conducted or not;
the main loop conducting rod further comprises a hollow insulating rod body, the power module, the conducting control module, the mechanical conducting module and the wiring module are all arranged inside the hollow insulating rod body, the mechanical conducting module is located at the first end of the hollow insulating rod body, and the power module, the conducting control module and the wiring module are all located at the second end of the hollow insulating rod body.
2. The main circuit conducting rod for sleeve-type rheological test according to claim 1, wherein the conduction detection circuit comprises a conduction triode and an intermediate relay which are sequentially connected, the conduction triode is connected with the power supply module, the intermediate relay is connected with the conduction control circuit, the conduction triode is cut off when the primary circuit is not conducted, the intermediate relay is opened, and the conduction triode, the intermediate relay, the mechanical conduction module, the sleeve cover and the power supply module form a circuit together when the primary circuit is conducted, and the intermediate relay is closed.
3. The main circuit continuity bar for telescopic rheological test according to claim 2, wherein the continuity detecting circuit further comprises a light emitting diode which forms a circuit together with the mechanical continuity module, the sleeve cap and the power module in a light emitting state when the primary circuit is turned on.
4. The main circuit continuity bar for telescopic rheological test according to claim 1, wherein the power module comprises:
an external power supply terminal connected with an external power supply through a wiring module and used for receiving externally provided voltage;
the transformer is respectively connected with the external power supply terminal and the conduction control module and is used for converting the voltage received by the external power supply terminal into the working voltage of the conduction control module and supplying power to the conduction control module;
and the storage battery is respectively connected with the transformer and the conduction control module, is used for storing surplus electric energy provided by an external power supply and supplies power for the conduction control module when the external power supply terminal is not connected with the external power supply.
5. The main loop conductance bar for a sleeve-type rheology test of claim 4, wherein said power module further comprises a voltage stabilizing circuit connected to the transformer and the conductance control module, respectively.
6. The main circuit continuity bar for telescopic rheology according to claim 1, characterized in that said wiring module comprises:
the power interface is respectively connected with the power module and an external power supply and is used for transmitting electric energy provided by the external power supply to the power module;
an external tester terminal connected with the external tester for forming a complete loop of the sleeve-type rheological test;
and the connection terminal of the conduction control module is respectively connected with the conduction control module and the sleeve current transformer and is used for forming a passage with the conduction control module, and the auxiliary conduction control module detects whether the primary loop is conducted or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710469667.XA CN107167756B (en) | 2017-06-20 | 2017-06-20 | Main loop guide rod for sleeve type rheological test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710469667.XA CN107167756B (en) | 2017-06-20 | 2017-06-20 | Main loop guide rod for sleeve type rheological test |
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| CN107167756A CN107167756A (en) | 2017-09-15 |
| CN107167756B true CN107167756B (en) | 2023-07-21 |
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| CN113533911A (en) * | 2021-06-11 | 2021-10-22 | 中国电力科学研究院有限公司 | Experimental device and testing method for high-voltage bushing insulation test and temperature detection |
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| JP2004170093A (en) * | 2002-11-18 | 2004-06-17 | Toshiba Corp | Testing device and testing method for electric equipment protection circuit |
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| CN206990788U (en) * | 2017-06-20 | 2018-02-09 | 上海送变电工程公司 | A kind of major loop conduction rod for bushing type rheological test |
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- 2017-06-20 CN CN201710469667.XA patent/CN107167756B/en active Active
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| JP2004170093A (en) * | 2002-11-18 | 2004-06-17 | Toshiba Corp | Testing device and testing method for electric equipment protection circuit |
| CN202997509U (en) * | 2012-12-24 | 2013-06-12 | 中国南方电网有限责任公司超高压输电公司 | Circuit protection device |
| CN206990788U (en) * | 2017-06-20 | 2018-02-09 | 上海送变电工程公司 | A kind of major loop conduction rod for bushing type rheological test |
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