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Power supply device for controllable reactor induction voltage-resistant experiment and its partial discharging measurement method

A technology of power supply device and withstand voltage test, which is applied to the parts of electrical measuring instruments, measuring electricity, measuring devices, etc.

Active Publication Date: 2008-10-29
STATE GRID HUBEI ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The on-site induction withstand voltage test and partial discharge measurement of the controllable reactor is the first in China

Method used

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  • Power supply device for controllable reactor induction voltage-resistant experiment and its partial discharging measurement method

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Embodiment Construction

[0029] Further illustrate below in conjunction with accompanying drawing and embodiment:

[0030] 1. Controllable reactor induction withstand voltage test power supply device (referred to as the device)

[0031] Such as figure 1 , the device includes a test object controllable reactor 6, and is provided with a variable frequency power supply cabinet 1, an intermediate transformer 2, a capacitor voltage divider 3, a voltmeter 4, a detection impedance 5, a partial discharge tester 7, and a compensation reactor 8;

[0032] Frequency conversion power cabinet 1, intermediate transformer 2, and controllable reactor 6 are connected in sequence;

[0033] The controllable reactor 6, the detection impedance 5, and the partial discharge tester 7 are connected in sequence;

[0034] Intermediate transformer 2, capacitive voltage divider 3, and voltmeter 4 are connected in sequence;

[0035] The compensation reactor 8 is connected to the controllable reactor 6 .

[0036] 2. Partial disc...

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Abstract

The invention discloses a controllable reactor induction pressure-proof test power supply device and a measuring method for partial discharge, which relate to a field test technology of the controllable reactor; the structure of the device is that a frequency converter power supply cabinet (1), a center transformer (2) and the controllable reactor (6) are connected in sequence so as to provide the test power supply for the controllable reactor (6); the controllable reactor (6), a detecting impedor (5) and a tester (7) for partial discharge are connected in sequence so as to detect the partial discharge of the controllable reactor (6); the center transformer (2), a capacitance voltage divider (3) and a voltage meter (4) are connected in sequence so as to measure the testing voltage of the center transformer (2); a compensating reactor (8) and the controllable reactor (6) are connected so as to compensate the reactive current of the controllable reactor (6); the invention is applicable to all controllable reactor induction pressure-proof tests and the measurement for partial discharge.

Description

technical field [0001] The invention relates to a controllable reactor field test technology, in particular to a controllable reactor induction withstand voltage test power supply device and a partial discharge measurement method thereof. Background technique [0002] my country's power grid currently has more than 90 500kV ultra-high voltage AC lines, with a total length of about 15,000km. After the completion of the Three Gorges Power Station, the 500kV line and capacitive charging power will increase a lot. For the central China power grid, because of the large proportion of hydropower, the output of hydropower generation in flood seasons and dry seasons, and the peak and valley power loads vary greatly, making it very difficult to control the grid voltage. Usually, ordinary ultra-high voltage shunt reactors, switchable low-voltage shunt reactors, generator phase-advance operation and a certain number of static var compensators are used comprehensively to solve the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/28G01R31/00G01R31/12G01R31/14
Inventor 胡惠然吴云飞阮羚汪涛金涛邓万婷沈煜
Owner STATE GRID HUBEI ELECTRIC POWER RES INST
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