High Voltage Test Machine
The High Voltage Test Machine for Wires and Cables is designed to perform AC withstand voltage tests (power frequency voltage tests) on electrical wires and cables. It applies a controlled high voltage to the specimen to verify insulation strength and dielectric performance. Due to significant capacitance between electrodes, large transformer capacity is required, especially for long or large-diameter cables.
Application
This high voltage test machine is suitable for:
AC withstand voltage testing of power, control, and communication cables
Insulation quality verification of wires and cables in manufacturing and quality control
Testing of automotive, industrial, and electrical power cables
R&D and routine production inspection of cable insulation materials
Standards
GB/T 227-2011: High Voltage Test for Electric Wires and Cables
IEC 60811: Methods for Testing of Insulating and Sheathing Materials of Electric Cables
IEC 60270: High-voltage Test Techniques – Partial Discharge Measurements
IEEE 400: Standard Test Procedures and Requirements for Field Testing of AC Transmission Cables
Parameters
| Item | Specification |
|---|---|
| Input Voltage | AC 380V, 50 Hz |
| Rated Power | 25 kVA / 30 kVA / 50 kVA / 100 kVA / 200 kVA |
| Voltage Range | AC 0–5 kV / 0–10 kV / 0–20 kV / 0–50 kV (customizable) |
| Breakdown Current Range | 0–5 A / 6 A / 10 A / 20 A (customizable) |
| Test Duration | 1–999.9 S / M / H (programmable) |
| Voltage Ramp | Pre-set voltage function; automatic ramp to set value |
| Structure | Separate control console and transformer; safe and reliable |
| Safety Alarms | Door limit alarm, zero voltage alarm, sound-light ramp alarm, breakdown alarm |
| Emergency Stop | Quick cut-off of voltage to terminate test immediately |
| Transformer Protection | Automatic power cut-off for transformer overcurrent or overload |
Features
Wide voltage and current range, suitable for cables of various lengths and diameters.
Programmable test time and voltage ramp for precise insulation testing.
Safety features including alarms, emergency stop, and transformer overload protection.
Split design for transformer and control console ensures operational safety.
Reliable AC withstand testing for production, R&D, and quality inspection purposes.
Accessories
High voltage transformer
Control console with display and indicators
Safety interlocks and alarms
Emergency stop switch
HV test leads and clamps (customizable)
Test Procedures
Connect the cable or wire specimen to the test terminals.
Set the desired test voltage and duration on the control console.
Ensure all safety doors are closed and interlocks engaged.
Start the test; the voltage automatically ramps to the set value.
Monitor the specimen and system for abnormal conditions.
Upon completion, the voltage automatically ramps down.
Record the test results and analyze insulation performance.
Repeat for additional specimens if required.
Maintenance Information
Regularly inspect the high voltage transformer for dust or moisture accumulation.
Check connections and test leads for wear or damage.
Verify alarm and interlock functions periodically.
Keep control console and display clean, free from electrical interference.
Ensure proper ventilation around transformer to prevent overheating.
FAQ
What is this product?
It is a high voltage test machine for evaluating the insulation strength of wires and cables.
What is it used for?
It performs AC withstand voltage tests to detect insulation weaknesses and verify cable dielectric performance.
Why is it important?
Ensures cable insulation can withstand operating and fault voltages, preventing electrical failures and enhancing safety.
Which industries is it suitable for?
Cable manufacturing, automotive wiring, electrical utilities, industrial wiring, quality control laboratories.
What types are available?
Models with different transformer capacities (25–200 kVA) and voltage ranges (0–5 kV to 0–50 kV), customizable based on cable size and testing requirements.
Leave Message Get Price
