High voltage cable partial discharge tester

NegotiableUpdate on 01/05

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The High Voltage Cable Partial Discharge Tester and Positioning System (OWTS system for short) is a new method for "condition based maintenance" of power cables.. This device uses an AC high voltage source. On the AC variable frequency series resonant withstand voltage device, a peak synchronization signal is added to stop the power output of the series resonant circuit at the peak, and at the same time, the high-voltage electronic switch is closed to form an oscillating wave damping oscillation for cable partial discharge testing. It can reliably detect weak insulation defects in cables and cable joints, and accurately locate them.

Product Details

1High voltage cable partial discharge testerPerformance Characteristics：

1.The method and equipment of AC series resonant boost and oscillation wave testing partial discharge are combined into one. A set of equipmentIt can complete partial discharge test and AC withstand voltage test, and can be used for both purposes. Increased the efficiency of device usage. and

The AC withstand voltage test complies with existing regulations

2. Suitable for handover testing of new cables (before commissioning) and preventive testing of old cables (after power outage).

3. Follow the IEC60270 standard to measure the local discharge of cables.

4. Measure the distance of cable discharge points.

5. Measure the position and total distance of cable joints.

6. The frequency conversion host can automatically boost the voltage according to the relevant regulations of State Grid, and the laptop system can automatically collect dataAccording to, it is simple and convenient.

7. By combining hardware and software anti-interference technology, external interference can be effectively removed.

8. A software expert system that simultaneously displays parameters such as partial discharge waveform, discharge amount, and test voltage, for testing dataReal time saving, generating test reports, and printing functions are carried out.

IIHigh voltage cable partial discharge testerTechnical Indicators:

1.Sample capacitance: ≤ 2uF (approximately 5km)

Zui HighTest voltage: AC 21.6kV

Damping oscillation wave frequency range: 30-600Hz

Frequency range for frequency conversion series resonance withstand voltage test: 20-300Hz

Partial discharge testing range: 10PC~20nC

Partial discharge positioning accuracy: 1%

2. System analysis software (including laptops)

2.1 Variable frequency source host

Output power:10KWOutput frequency:30HZ-300HZ

Frequency resolution:0.1HZInput power supply:AC220V±10 ﹪

2.2 Resonant Reactor

Inductance:3HWorking frequency:30HZ-300HZ

Zui HighWorking voltage:AC 25KV zUI high working current:10A

2.3 zHuam usesPartial discharge collection and filtering device

Sampling frequency: 100MHz

2.4 Partial discharge calibrator

(100pC,200pC,500pC,1000pC,2000pC，5nC,10nC,20nC)