√ Direct Digital Readout
Test parameters such as current, voltage, and power factor are displayed directly on digital meters.
√ High‑Accuracy Measurement
Utilizes high‑precision components to ensure accurate and reliable test results.
√ Comprehensive Safety Protection
Each output circuit is individually protected by a circuit breaker (air switch) to prevent overload.
√ Portable Design
Compact and lightweight construction ensures easy transportation and on‑site deployment.
Connect the three-phase four-wire AC 380V input.
Connect the DC output voltage to the load.
Rotate the output adjustment knob counterclockwise to its zero position.
Verify and confirm that all wiring is correct.
Turn on the main power switch.
Gradually rotate the output adjustment knob clockwise to increase the voltage to the desired value.
After testing, first rotate the output adjustment knob counterclockwise back to the zero position, then turn off the main power switch. Wait until discharge is complete before disconnecting any wires.
√ Circuit Resistance Measurement
Test Current: 0‑100A / 0‑200A selectable
Measurement Range: 0‑2mΩ / 0‑20mΩ
√ Insulation Resistance Measurement
Test Voltage: 500‑2500V DC
√ Dielectric Withstand Voltage Test
Test Levels: 0.4kV, 10kV, 35kV AC
√ Short‑Time Withstand Current Test
Current Range: 0‑2000A
√ Relay & Contactor Functional Test
Applicable to various protection and control relays, contactors
√ Circuit Breaker Timing & Speed Characteristic Test
Measures opening/closing time and travel‑velocity characteristics
√ High & Low Voltage Switch Operational Test
Verifies on/off operation and mechanical performance






