Complete set of equipment for AC power frequency withstand voltage test

NegotiableUpdate on 11/28

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

1、 Product Introduction: The complete set of AC power frequency withstand voltage test equipment is a new type of high-voltage testing equipment. This series of products adopts a single frame core structure, and the primary winding and high-voltage winding are coaxially wound on the core to reduce leakage flux and increase coupling between windings

Product Details

1、 Product Introduction

Complete set of equipment for AC power frequency withstand voltage testIt is a new type of high-voltage testing equipment. This series of products adopts a single frame core structure, and the primary winding and high-voltage winding are coaxially wound on the core to reduce leakage flux and increase coupling between windings. The overall structure of the product is compact, highly versatile, easy to carry, and suitable for on-site testing of insulation performance of various high-voltage electrical equipment in power systems and power users. It is an essential testing instrument for power equipment testing and preventive testing.

Complete set of equipment for AC power frequency withstand voltage testIn addition to being able to perform AC power frequency withstand voltage tests, if equipped with capacitors of the same voltage level and capacity, silicon stacks, and high-voltage DC microamperes, it can be assembled into a DC high-voltage test device that can measure high-voltage DC leakage current.

2、 Functional Features

Monitoring function: output current, instrument voltage, zero position indication, power indication, working indication, timing indication.
Protection functions: overcurrent protection, time relay.
Adopting a new type of time relay, the timing range is wider.
Adopting a new type of current relay, it is more accurate and reliable, ensuring personal and equipment safety.
Reasonable structure, small size, and light weight.
Composed of YDQ inflatable test transformer and TCWJH transformer control box/set. (Control box for 5kVA, console for 10kVA and above)

3、 Technical indicators

Input voltage: 220V ± 10% 50Hz
Output voltage: 50kV
Output capacity: 5kVA
Timing range: 1S to 99H
Environmental temperature: -20 ℃ to 50 ℃

4、 Operation method

Connect the wires as shown in the diagram and check if the internal gas pressure indicated by the pressure gauge is normal (≥ 0.3Mpa)
Insert the short-circuit rod into hole J during AC withstand voltage testing, conduct a DC leakage test, and remove the short-circuit rod. ?????
Remove the lead wires, sleeves, and body dirt of the test sample, and use shielding measures if necessary.
The preparation work and safety measures are ready, and the equipment will be air tested once.
Connect the test sample and use shielded wires for DC testing to eliminate stray leaks. Turn on the power supply, and the green light for the power instruction of the control box (cabinet) will turn on.
Press the start button, and the start indicator light will turn on.
For the control box, power it evenly clockwise and watch the voltmeter reach the rated voltage value.
Continuously regulate the withstand voltage time and monitor the ammeter reading.
When the withstand time is up, pay attention to the high voltage meter and quickly and uniformly drop to zero.
After conducting the experiment shown in Figure 2, discharge through a resistor using a discharge rod, and then discharge directly to the ground.
After the high-voltage part may be discharged one by one by the charging parts, the high-voltage leads may be changed or removed, and all leads may be terminated from this test