CN203630197U - An arrester power frequency current testing apparatus - Google Patents

An arrester power frequency current testing apparatus Download PDF

Info

Publication number
CN203630197U
CN203630197U CN201320825256.7U CN201320825256U CN203630197U CN 203630197 U CN203630197 U CN 203630197U CN 201320825256 U CN201320825256 U CN 201320825256U CN 203630197 U CN203630197 U CN 203630197U
Authority
CN
China
Prior art keywords
lightning arrester
power current
capacitor
unit according
test unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320825256.7U
Other languages
Chinese (zh)
Inventor
何计谋
蔡汉生
祝嘉喜
刘刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China XD Electric Co Ltd
Original Assignee
China XD Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China XD Electric Co Ltd filed Critical China XD Electric Co Ltd
Priority to CN201320825256.7U priority Critical patent/CN203630197U/en
Application granted granted Critical
Publication of CN203630197U publication Critical patent/CN203630197U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The utility model discloses an arrester power frequency current testing apparatus comprising a charging loop and a capacitor charged through the charging loop. The capacitor is connected with a wave modulation inductor and a discharging sphere gap successively and is then connected with a test object for discharging. The test object is connected with a voltage divider in parallel. A current divider is connected between the test object and the capacitor. The charging loop and the discharging sphere gap are connected with a control unit controlling the work thereof. The voltage divider and the current divider are connected with a measuring unit which measures the voltage and the current thereof. The control unit is used for controlling of charge of the capacitor and the discharging to the test object by the discharging sphere gap and thus the power frequency current half-wave is generated; the measuring unit collects the wave forms of the voltage divider and the current divider and the wave form parameters of the voltage and the current borne by the test object are collected in a computer for analysis and recording; and the measurement and recording of the wave form parameters of the voltage and the current generated when the power frequency current half-wave flows through the test object are achieved.

Description

A kind of lightning arrester power current test unit
Technical field
The utility model relates to test of lightning arrester field, particularly a kind of lightning arrester power current test unit.
Background technology
Lightning arrester is the important protective device of electric system, widespread use in electric system and string benefit device, and the measurement of lightning arrester power frequency parameter and research are very important to lightning arrester with coordinating of systematic parameter, especially string are mended to device lightning arrester.Testing laboratory adopt testing transformer to lightning arrester the characteristic under little power current can measure, but need to drop into jumbo testing transformer to large power current test, the testing transformer adopting at present also cannot be realized lightning arrester by the power current half-wave test of kilo-ampere level.
Summary of the invention
The purpose of this utility model is to provide a kind of lightning arrester power current test unit, solves existing proving installation and cannot realize lightning arrester by the problem of kilo-ampere level power current half-wave test.
In order to achieve the above object, the utility model is achieved by the following technical solutions:
A kind of lightning arrester power current test unit, comprise charge circuit, the capacitor charging by charge circuit, described capacitor connects successively harmonic inductance and after ball discharge gap, is connected electric discharge with test product, described test product is parallel with voltage divider, is also connected with shunt between test product and capacitor; Described charge circuit and ball discharge gap are connected with the control module of controlling its work, and described voltage divider and shunt are connected with the measuring unit of measuring respectively its voltage and current.
Described charge circuit adopts constant pressure source or constant current source.
Described ball discharge gap is the spherical or semisphere that copper or graphite are made, and ball discharge gap form is fixed or pneumatic type.
Described capacitor is made up of 20~26 Parallel-connected Capacitors.
Described voltage divider adopts high-voltage probe, capacitive divider or resitstance voltage divider.
Described shunt adopts divertor or current mutual inductor coil.
Described measuring unit comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider and shunt.
Described measuring unit is provided with has the interface that telecommunication is provided to host computer.
Described communication interface is RS485 interface, optical fiber interface or wireless communication interface.
Described control module adopts single-chip microcomputer.
The utility model adopts control module to send control signal to charge circuit and ball discharge gap respectively, make capacitor charging and discharging ball-gap discharge, capacitor discharges to test product by harmonic inductance, ball discharge gap, can produce amplitude is 0.01kA~2kA power current half-wave, and the voltage and current waveform parameter collection of test product being born by measuring unit, then deliver in computing machine and analyze and record.Charge to capacitor by charge circuit, then pass through ball discharge gap to the large power current of test product discharge generation, solving prior art directly uses transformer cannot produce the problem of large power current, this test unit investment is little, loss is low, and the voltage and current waveform parameter having realized when lightning arrester passes through power current half-wave is measured and record.
Further, measuring unit is provided with the interface that telecommunication is provided to host computer, can directly measurement parameter be delivered to host computer and calculate, analyzes, and practicality is stronger.
Accompanying drawing explanation
Fig. 1 is a kind of lightning arrester power current test unit structural representation of the present utility model
In figure: 1, charge circuit; 2, capacitor; 3, harmonic inductance; 4, ball discharge gap; 5, voltage divider; 6, shunt 7, test product; 8, measuring unit; 9, control module.
Embodiment
With reference to Fig. 1, this lightning arrester power current test unit, comprises charge circuit 1, capacitor 2, harmonic inductance 3, ball discharge gap 4, voltage divider 5, shunt 6, test product 7, measuring unit 8 and control module 9.
Charge circuit 1 is connected to capacitor charging with capacitor 2, capacitor 2 connects successively harmonic inductance 3 and is connected with test product 7 with after ball discharge gap 4, capacitor 2 is by harmonic inductance 3 and ball discharge gap 4 is rear that test product 7 is discharged, described test product 7 is parallel with voltage divider 5, between test product 7 and capacitor 2, be also connected with shunt 6, described charge circuit 1 and ball discharge gap 4 are also connected with the control module 9 of controlling its work, control module 9 sends control signal to respectively charge circuit 1 and ball discharge gap 4, and capacitor 2 charging and discharging ball gaps 4 are discharged; Described voltage divider 5 and shunt 6 are connected with the measuring unit 6 of measuring respectively its voltage and current.
While carrying out current testing, send control signal to respectively charge circuit 1 and ball discharge gap 4 by control module 9, capacitor 2 is charged, charge circuit can adopt constant pressure source or constant current source, control module is made up of the programming device such as single-chip microcomputer, DSP, and capacitor 2 is made up of 20~26 Parallel-connected Capacitors; After capacitor charging, by harmonic inductance 3, ball discharge gap 4, test product 7 is discharged, test product is lightning arrester non-linear resistor, generation current amplitude is the power current half-wave of 0.01kA~2kA, and ball discharge gap can adopt spherical or semisphere, and material can adopt copper or graphite, the form of ball discharge gap can adopt fixed or pneumatic type, harmonic inductance 3 adopts many taps mode, obtains different inductance values, is used for harmonic; Described measuring unit 8 comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider 5 and shunt 6, and the voltage and current waveform parameter that test product 7 is born collects in computing machine to be analyzed and record.
Further, voltage divider 5 can adopt high-voltage probe or capacitive divider or resitstance voltage divider; Shunt 6 can adopt divertor or current mutual inductor coil, this device also has to host computer simultaneously provides remote communication interface function, described measuring unit is provided with has RS485 interface, wireless communication interface or optical fiber interface that telecommunication is provided to host computer, is transferred in computing machine and is analyzed and record gathering by communication cable, optical fiber and wireless telecommunications by the voltage and current waveform parameter of test product 7.

Claims (10)

1. a lightning arrester power current test unit, it is characterized in that, comprise charge circuit (1), by the capacitor (2) of charge circuit (1) charging, described capacitor (2) connects successively harmonic inductance (3) and is connected electric discharge with after ball discharge gap (4) with test product (7), described test product (7) is parallel with voltage divider (5), between test product (7) and capacitor (2), is also connected with shunt (6); Described charge circuit (1) and ball discharge gap (4) are connected with the control module (9) of controlling its work, and described voltage divider (5) and shunt (6) are connected with the measuring unit (6) of measuring respectively its voltage and current.
2. lightning arrester power current test unit according to claim 1, is characterized in that, described charge circuit adopts constant pressure source or constant current source.
3. lightning arrester power current test unit according to claim 1, is characterized in that, described ball discharge gap is the spherical or semisphere that copper or graphite are made, and ball discharge gap form is fixed or pneumatic type.
4. lightning arrester power current test unit according to claim 1, is characterized in that, described capacitor (2) is made up of 20~26 Parallel-connected Capacitors.
5. lightning arrester power current test unit according to claim 1, is characterized in that, described voltage divider (5) adopts high-voltage probe, capacitive divider or resitstance voltage divider.
6. lightning arrester power current test unit according to claim 1, is characterized in that, described shunt (6) adopts divertor or current mutual inductor coil.
7. lightning arrester power current test unit according to claim 1, is characterized in that, described measuring unit (8) comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider (5) and shunt (6).
8. lightning arrester power current test unit according to claim 1, is characterized in that, described measuring unit (8) is provided with has the interface that telecommunication is provided to host computer.
9. lightning arrester power current test unit according to claim 8, is characterized in that, described communication interface is RS485 interface, optical fiber interface or wireless communication interface.
10. lightning arrester power current test unit according to claim 1, is characterized in that, described control module (9) adopts single-chip microcomputer.
CN201320825256.7U 2013-12-13 2013-12-13 An arrester power frequency current testing apparatus Expired - Lifetime CN203630197U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320825256.7U CN203630197U (en) 2013-12-13 2013-12-13 An arrester power frequency current testing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320825256.7U CN203630197U (en) 2013-12-13 2013-12-13 An arrester power frequency current testing apparatus

Publications (1)

Publication Number Publication Date
CN203630197U true CN203630197U (en) 2014-06-04

Family

ID=50816659

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320825256.7U Expired - Lifetime CN203630197U (en) 2013-12-13 2013-12-13 An arrester power frequency current testing apparatus

Country Status (1)

Country Link
CN (1) CN203630197U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104459236A (en) * 2014-12-12 2015-03-25 国家电网公司 Bipolar linkage impulse current generator
CN104459417A (en) * 2014-12-25 2015-03-25 中国西电电气股份有限公司 Energy tolerance testing device and method
CN106124979A (en) * 2016-08-05 2016-11-16 中国南方电网有限责任公司超高压输电公司检修试验中心 500kV AC filter and breaker fracture voltage measures system and method
CN106646051A (en) * 2016-12-27 2017-05-10 中国西电电气股份有限公司 Lightning arrester testing device and lightning arrester testing method
CN108107300A (en) * 2018-02-27 2018-06-01 南方电网科学研究院有限责任公司 Lightning arrester detection circuit and device
CN108333451A (en) * 2018-02-27 2018-07-27 南方电网科学研究院有限责任公司 Operation load circuit
CN110308354A (en) * 2019-07-24 2019-10-08 王炎 A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method
CN112666428A (en) * 2020-12-02 2021-04-16 西安交通大学 Vacuum gap-based lightning arrester operation simulation test system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104459236A (en) * 2014-12-12 2015-03-25 国家电网公司 Bipolar linkage impulse current generator
CN104459236B (en) * 2014-12-12 2017-11-07 国家电网公司 A kind of bipolarity linkage impulse current generator
CN104459417A (en) * 2014-12-25 2015-03-25 中国西电电气股份有限公司 Energy tolerance testing device and method
CN104459417B (en) * 2014-12-25 2018-05-29 中国西电电气股份有限公司 A kind of energy resistance test device and test method
CN106124979A (en) * 2016-08-05 2016-11-16 中国南方电网有限责任公司超高压输电公司检修试验中心 500kV AC filter and breaker fracture voltage measures system and method
CN106124979B (en) * 2016-08-05 2018-11-23 中国南方电网有限责任公司超高压输电公司检修试验中心 500kV AC filter and breaker fracture voltage measuring system and method
CN106646051A (en) * 2016-12-27 2017-05-10 中国西电电气股份有限公司 Lightning arrester testing device and lightning arrester testing method
CN106646051B (en) * 2016-12-27 2019-12-13 中国西电电气股份有限公司 Lightning arrester testing device and method
CN108107300A (en) * 2018-02-27 2018-06-01 南方电网科学研究院有限责任公司 Lightning arrester detection circuit and device
CN108333451A (en) * 2018-02-27 2018-07-27 南方电网科学研究院有限责任公司 Operation load circuit
CN110308354A (en) * 2019-07-24 2019-10-08 王炎 A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method
CN112666428A (en) * 2020-12-02 2021-04-16 西安交通大学 Vacuum gap-based lightning arrester operation simulation test system

Similar Documents

Publication Publication Date Title
CN203630197U (en) An arrester power frequency current testing apparatus
CN104237831B (en) A kind of counter of lightning arrester tester calibration device
CN103675624B (en) A kind of spark gap working-frequency voltage test device and test method
CN104502819A (en) Arrester impact characteristics testing device and method
CN205301505U (en) Partial discharge detector is wireless trigger of power frequency locking phase for system
CN204101715U (en) A kind of counter of lightning arrester tester calibration device
CN106324538B (en) A kind of shelf depreciation automated calibration system
CN205038273U (en) Measurement device for earthing device power frequency and impact characteristic parameter
CN203965489U (en) A kind of shelf depreciation high voltage pulse generation device
CN104459417A (en) Energy tolerance testing device and method
CN102435973A (en) Calibration apparatus of capacitive equipment insulation on-line monitoring system and method thereof
CN202177692U (en) Lightning arrester counter comprehensive calibration device
CN202794359U (en) Zinc oxide lightning arrester on-line monitoring device
CN203337722U (en) Voltage and current collecting device of grid overhead transmission line
CN102818928A (en) Current probe-based on-line measuring system for high-frequency corona pulse current on high-voltage line
CN109490727B (en) Lightning arrester series resonance test device and method
CN202093095U (en) Direct-current resistance tester for transformer
CN204101642U (en) A kind of Dielectric Posts device
CN206710499U (en) A kind of current data harvester based on Rogowski coil
CN203616401U (en) Online detection device used for electric reactor
CN103604977B (en) A kind of lightning current monitoring system based on atmospheric humidity
CN103018573B (en) Field measurement system for dielectric loss value of crosslinked polyethylene power cable
CN204925324U (en) A partial discharge test platform for high tension switchgear
CN103116150A (en) Verifying device of insulated online monitoring equipment of oxide arrester
CN203084093U (en) Monitor used for lightning arrester

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140604

CX01 Expiry of patent term