Product Details

 Product Introduction:

During transformer production, before commissioning, and during operation, per national preventive test standards, periodic turns ratio testing is required. Traditional bridges are tedious with non-intuitive readings and only provide single-phase results.

The ratio group calibrator overcomes traditional bridge limitations with complete 3-phase testing, fast speed, high accuracy, saving field test time.

Safety Measures:

◆ Read manual carefully before use.
◆ Operator must have basic electrical equipment knowledge.
◆ Avoid rain, corrosive gas, dust, high temp, direct sunlight.
◆ Avoid severe vibration.
◆ Maintenance by qualified personnel.
◆ Clamps: yellow=Phase A, green=Phase B, red=Phase C.
◆ Do not reverse HV/LV cables.
◆ Single phase: use yellow+green clamps only.

Product Features:

◆ Wide range, up to 10000.
◆ Fast: 7 seconds for 3-phase test.
◆ Zig-zag transformer test.
◆ Blind ratio and group test.
◆ Non-volatile clock and data storage.
◆ HV/LV reverse connection protection.
◆ Short circuit and inter-turn protection.
◆ Thermal printer, fast, silent.
◆ Compact, lightweight.

Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.