Inductive Resonant Test System

The HMCXZW 15000kVA 200kV partial discharge-free inductive resonance test system is a high-performance testing device specially designed for the AC withstand voltage tests and partial discharge (PD) tests of electrical equipment. By activating the resonant circuit via the excitation transformer, it generates the required test voltage at a preset frequency through resonance between the inductance (L) of the reactor and the capacitance (C) of the test object. This system is an ideal solution for capacitive equipment, including power transformers, instrument transformers, power cables, gas insulated switchgear (GIS), circuit breakers, disconnectors, insulators, bushings, as well as for the power frequency withstand voltage tests and grounding grid tests of large generator sets.

Input Voltage: Three - phase AC 380V±10%, 50Hz

Output Power: Single - phase 450kW

Frequency Range: 20Hz–300Hz (continuously adjustable)

Output Voltage: 0–350V (continuously adjustable)

Output Current: 0–1286A (continuously adjustable)

Frequency Instability: ≤0.05%

Voltage Instability: ≤1.0%

THD: ≤1%

Partial Discharge: ≤10pC (measured at the high - voltage side of the step - up transformer)

Operating Conditions

Temperature: -10°C to +45°C

Humidity: 10%–90% RH

Cooling: Forced air cooling