Overview

BH-0.66P series protective current transformer, the shell is made of polycarbonate with a temperature resistance of 120°C, the inner core is made of cold-rolled steel strip, and the secondary side coil is wound with high-strength electromagnetic enameled wire.

This product is developed to protect a series of short-circuit faults, with different accuracy level groups and accurate limit coefficients, and can be expanded to different perforation sizes, which is widely used in low-voltage distribution protection systems. This current transformer can also be used as a current and energy measurement in AC circuits with a frequency of 50Hz, and the accuracy can also be customized to 0.5 class, 0.5S class, 0.2 class, and 0.25 class.

Standards: GB 20840.1, GB 20840.2

Model Meaning

Normal Working Conditions and Installation Conditions

1. Rated working voltage: AC 0.66kV;

2. Rated frequency: 50~60Hz;

3. Altitude: ≤1000m;

4. Power frequency withstand voltage: 3000V/1min 50Hz (between shell and secondary coil);

5. Ambient temperature: -5° C~ 45C, used in indoor places without direct invasion of thunderstorms, pollution and violent vibration;

6. Insulation grade: E.

Product Parameters

Installation Dimensions