CN210005629U - Withstand voltage test device for extra-high voltage GIS - Google Patents
Withstand voltage test device for extra-high voltage GIS Download PDFInfo
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- CN210005629U CN210005629U CN201920682554.2U CN201920682554U CN210005629U CN 210005629 U CN210005629 U CN 210005629U CN 201920682554 U CN201920682554 U CN 201920682554U CN 210005629 U CN210005629 U CN 210005629U
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Abstract
The utility model relates to an withstand voltage test equipment, especially, kind extra-high voltage GIS withstand voltage test device is related to, provide kinds can carry out withstand voltage to GIS automatically and detect, the extra-high voltage GIS withstand voltage test device that check-out time is short and detection efficiency is high including insulating casing, binding post, second binding post and third binding post, binding post, second binding post and third binding post are fixed on the insulating casing, binding post electricity connection GIS's wiring port in proper order, binding post, second binding post are respectively through cable junction interchange high voltage power supply, then the circuit breaker disconnection on the corresponding looks cable that is sent the instruction by control module when needs are tested mutually, make corresponding phase place outage, just so can be gone into detection list phase sequence's withstand voltage level, that is to say that the circular telegram and the outage of corresponding phase place are controlled by control module, do not need manual phase place changing, therefore the test speed is fast, efficient.
Description
Technical Field
The utility model relates to an kind withstand voltage test equipment especially relates to kind special high voltage GIS withstand voltage test device.
Background
In the power system, the ultra-high voltage transmission line refers to a transmission line with transmission voltage of 1000KV grade, high-voltage electrical components are needed in the transmission line, and a GIS is more commonly used.
The GIS is named as GAS insulated metal enclosed SWITCHGEAR (GAS insulated SWITCHGEAR), namely a GAS insulated totally enclosed combined electrical apparatus, and consists of a circuit breaker, a disconnecting switch, a grounding switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, all the equipment or components are enclosed in a metal grounded shell, and SF6 insulating GAS with constant pressure of is filled in the metal grounded shell, so the GIS is also named as SF6 totally enclosed combined electrical apparatus, is widely applied to in the high-voltage and ultrahigh-voltage fields, and is also used in the ultrahigh-voltage field.
Because GIS is often used in extra-high voltage and extra-high voltage occasions, the requirement of for the insulating strength of each element in GIS can ensure safety and stability, and therefore, the voltage resistance test of GIS after assembly before leaving factory is an indispensable procedure.
In the prior art, a special detection device is provided for performing voltage resistance detection on the GIS, for example, the application number is 201721604617.X, voltage resistance detection equipment for the GIS is disclosed, and the voltage resistance detection equipment comprises a closed shell, a wire outlet sleeve, a th conducting rod, a moving end rotating device, a moving end supporting device and a basin-type insulator, wherein the moving end supporting device is arranged at the right end of the closed shell, the basin-type insulator is arranged at the left end of the closed shell, the wire outlet sleeve is arranged on the outer side of the upper end of the closed shell, a th conducting rod is arranged in the wire outlet sleeve, a th conducting rod extends into the closed shell and is electrically connected with a steering supporting device, the moving end rotating device comprises a supporting rotating shaft, an insulating pull rod, a conductive rotating shaft, a rotating seat, a rotating disk, a conductive moving contact rod and a grounding contact device, the moving contact conducting rods and two grounding contact devices are arranged on the rotating disk at equal intervals corresponding to three metal accessories of the basin-type insulator, the grounding contact device comprises an insulating pull rod, a grounding contact seat, a grounding contact and a grounding terminal, so that the phase position of the grounding contact device is adjusted manually, the three-phase position detection equipment is improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an kinds can carry out withstand voltage to GIS automatically and detect, and check-out time is short and the special high voltage GIS withstand voltage test device that detection efficiency is high.
The utility model adopts the following technical scheme that the extra-high voltage GIS voltage withstand test device comprises an insulating shell, a wiring terminal, a second wiring terminal and a third wiring terminal, wherein the wiring terminal, the second wiring terminal and the third wiring terminal are fixed on the insulating shell, the wiring terminals are sequentially electrically connected with a wiring port of the GIS, and the wiring terminal and the second wiring terminal are respectively connected with an alternating-current high-voltage power supply through cables;
the ultrahigh voltage GIS withstand voltage test device also comprises a control assembly, wherein the control assembly comprises circuit breakers and control modules, the circuit breakers are respectively arranged on the cables, and the control modules are used for controlling the circuit breakers to be switched on and off;
the control module comprises a pulse generator and a controller, the pulse generator is in signal connection with the controller, the pulse generator is electrically connected with a control coil, the control coil is linked with the circuit breaker, the alternating-current high-voltage power supply is in signal connection with the controller, and the controller controls the alternating-current high-voltage power supply to be turned on and off.
The controller comprises an IO interface and a processing chip, the IO interface is in signal connection with the processing chip, and the pulse generator is in signal connection with the processing chip through the IO interface and receives a control signal of the processing chip;
the alternating-current high-voltage power supply is provided with a switch for controlling the high-voltage power supply to be turned on and off, the switch is in signal connection with the processing chip, and the processing chip controls the alternating-current high-voltage power supply to be turned on and off through the switch.
binding post, second binding post and be equipped with insulating gland on the third binding post respectively, insulating gland establishes including the cover gland body on the cable is fixed in respectively binding post, second binding post and gland base on the third binding post, gland body detachable fixes on the gland base.
And the gland base is provided with a pressure sensor, and the pressure sensor is in signal connection with the controller and sends a pressure signal to the controller.
The extra-high voltage GIS withstand voltage test device further comprises a safety bypass, wherein the safety bypass comprises a bypass coil and three normally closed contacts, each normally closed contact is arranged on each cable, normally closed contacts are arranged on each cable, the bypass coil is connected with the controller through signals, and the bypass coil is linked with the three normally closed contacts.
Compared with the prior art, the utility model discloses when needing to carry out withstand voltage test, thereby directly carry out withstand voltage test by control module control circuit breaker combined floodgate action after fixing cable and binding post, and then the circuit breaker disconnection on the corresponding looks cable that is by control module send command is when needs are tested mutually, make corresponding phase place outage, just so can detect the withstand voltage grade of single looks preface by one by one, that is to say the circular telegram and the outage of corresponding phase place are controlled by control module, do not need manual change phase place, therefore experimental fast, high efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the present invention;
in the figure, the insulation cover comprises an insulation shell 1, a th wiring terminal 2, a 3 second wiring terminal 4, a third wiring terminal 5, a gland body 6, a gland base 7, a breaker 8, a control coil 9, a bypass coil 10, a normally closed contact 11, a controller 12 and a pulse generator.
Detailed Description
The present invention will be described in with reference to the accompanying drawings and the detailed description, wherein it is to be understood that various embodiments or technical features described below can be combined arbitrarily to form new embodiments without conflict.
As shown in fig. 1-2, the extra-high voltage GIS withstand voltage test device includes an insulating housing 11, a 35 connection terminal 22, a second connection terminal 33 and a third connection terminal 44, wherein the connection terminal 2, the second connection terminal 3 and the third connection terminal 4 are fixed on the insulating housing 1, the connection terminals are sequentially electrically connected to connection ports of the GIS, the connection terminal 2 and the second connection terminal 3 are respectively connected to an ac high voltage power supply through cables, the extra-high voltage GIS withstand voltage test device further includes a control assembly, the control assembly includes a circuit breaker 7 and a control module, the circuit breaker 7 and the control module are respectively arranged on the cables, the control module directly controls the circuit breaker 7 to close after the cables and the connection terminals are fixed, so as to switch on the power supply to perform withstand voltage test, and the control module sends an instruction to switch off the circuit breaker 7 on the corresponding phase cable to switch off the corresponding phase when the phase test is required, so that the corresponding phase is switched off, and thus the can detect the withstand voltage grade of the single phase sequence, that is controlled by the power-on and off control module of the corresponding.
The control module comprises a pulse generator 12 and a controller 11, the pulse generator 12 is in signal connection with the controller 11, the pulse generator 12 is electrically connected with a control coil 8, the control coil 8 is linked with a circuit breaker 7, an alternating current high-voltage power supply is in signal connection with the controller 11, and the controller 11 controls the alternating current high-voltage power supply to be opened and closed. The controller 11 controls the on-off of the breaker 7 by controlling a pulse signal sent by the pulse generator 12, controls the current and the high-voltage power supply circuit to be separated, avoids mutual interference, and simultaneously improves the safety in the operation process.
The controller 11 comprises an IO interface and a processing chip, the IO interface is in signal connection with the processing chip, and the pulse generator 12 is in signal connection with the processing chip through the IO interface and receives a control signal of the processing chip;
the alternating-current high-voltage power supply is provided with a switch for controlling the high-voltage power supply to be turned on and off, the switch is in signal connection with the processing chip, and the processing chip controls the alternating-current high-voltage power supply to be turned on and off through the switch. The processing chip needs to cut off the access of the alternating-current high-voltage power supply in each phase change process, so that electric sparks generated in the phase change process are prevented from finally puncturing the whole test equipment, and meanwhile, accidents are prevented from occurring in the phase change process. The safety in the test process is improved. The processing chip can adopt an MS-51 series single chip microcomputer with mature technology, has high stability and is convenient to be connected with an upper computer. The test parameters can be changed conveniently, and the method is suitable for various test occasions.
binding post 2, second binding post 3 with be equipped with insulating gland on the third binding post 4 respectively, insulating gland establishes including the cover gland body 5 on the cable is fixed in respectively binding post 2, second binding post 3 with gland base 6 on the third binding post 4, gland body 5 detachable fixes on gland base 6.
And a pressure sensor is arranged on the gland base 6, is in signal connection with the controller 11 and sends a pressure signal to the controller 11.
The extra-high voltage GIS withstand voltage test device further comprises a safety bypass, wherein the safety bypass comprises a bypass coil 9 and three normally closed contacts 10, normally closed contacts 10 are arranged on each cable, the bypass coil 9 is in signal connection with the controller 11, the bypass coil 9 is in linkage with the three normally closed contacts 10, when pressure detected by a pressure sensor received by the controller 11 is abnormal, the controller 11 sends a signal to the bypass coil 9, so that the normally closed contacts 10 are disconnected, the whole circuit is in a broken state, whether the GIS is closely connected with the test device or not is detected through the pressure sensor, particularly, the whole circuit can be controlled to be in the broken state when the pressure value is abnormal, safety performance in the using process is greatly guaranteed, and safety performance in the whole test process is extremely high.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (5)
1. The extra-high voltage GIS voltage withstand test device comprises an insulating shell, a th wiring terminal, a second wiring terminal and a third wiring terminal, wherein the th wiring terminal, the second wiring terminal and the third wiring terminal are fixed on the insulating shell, the wiring terminals are sequentially electrically connected with wiring ports of a GIS, and the th wiring terminal and the second wiring terminal are respectively connected with an alternating-current high-voltage power supply through cables;
the method is characterized in that: the ultrahigh voltage GIS withstand voltage test device also comprises a control assembly, wherein the control assembly comprises circuit breakers and control modules, the circuit breakers are respectively arranged on the cables, and the control modules are used for controlling the circuit breakers to be switched on and off;
the control module comprises a pulse generator and a controller, the pulse generator is in signal connection with the controller, the pulse generator is electrically connected with a control coil, the control coil is linked with the circuit breaker, the alternating-current high-voltage power supply is in signal connection with the controller, and the controller controls the alternating-current high-voltage power supply to be turned on and off.
2. The extra-high voltage GIS withstand voltage test device of claim 1, characterized in that: the controller comprises an IO interface and a processing chip, the IO interface is in signal connection with the processing chip, and the pulse generator is in signal connection with the processing chip through the IO interface and receives a control signal of the processing chip;
the alternating-current high-voltage power supply is provided with a switch for controlling the high-voltage power supply to be turned on and off, the switch is in signal connection with the processing chip, and the processing chip controls the alternating-current high-voltage power supply to be turned on and off through the switch.
3. The extra-high voltage GIS voltage withstand test device according to claim 1, wherein the connection terminal, the second connection terminal and the third connection terminal are respectively provided with an insulating gland, the insulating gland comprises a gland body sleeved on the cable and a gland base respectively fixed on the connection terminal, the second connection terminal and the third connection terminal, and the gland body is detachably fixed on the gland base.
4. The extra-high voltage GIS withstand voltage test device of claim 3, characterized in that: and the gland base is provided with a pressure sensor, and the pressure sensor is in signal connection with the controller and sends a pressure signal to the controller.
5. The extra-high voltage GIS withstand voltage test device according to claim 1, characterized in that the extra-high voltage GIS withstand voltage test device further comprises a safety bypass, the safety bypass comprises a bypass coil and three normally closed contacts, each cable is provided with normally closed contacts, the bypass coil is in signal connection with the controller, and the bypass coil is linked with the three normally closed contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682554.2U CN210005629U (en) | 2019-05-13 | 2019-05-13 | Withstand voltage test device for extra-high voltage GIS |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682554.2U CN210005629U (en) | 2019-05-13 | 2019-05-13 | Withstand voltage test device for extra-high voltage GIS |
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| CN210005629U true CN210005629U (en) | 2020-01-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281627A (en) * | 2021-06-04 | 2021-08-20 | 广东电网有限责任公司 | Alternating current withstand voltage test auxiliary device |
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- 2019-05-13 CN CN201920682554.2U patent/CN210005629U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281627A (en) * | 2021-06-04 | 2021-08-20 | 广东电网有限责任公司 | Alternating current withstand voltage test auxiliary device |
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