This series of low-voltage open-closed current transformers are suitable for current measurement, metering and microcomputer protection in AC power system power supply equipment of 1kV and below.

Structure introduction

This type of current transformer uses high-quality silicon steel sheets with high magnetic permeability as magnetic permeability material, with high accuracy and low magnetic circuit loss. Its rectangular iron core and secondary winding are enclosed in a flame-retardant ABS shell. The transformer can be opened and does not need to be disassembled on-site copper bars (more suitable for on-site transformation and installation of transformers). It is moisture-proof, stable in performance and no maintenance is required. Easy to install and disassemble.

Main technical data

1. Rated working voltage: AC 0.66kV

2. Rated frequency: 50Hz

3. Power frequency withstand voltage: 3kV/1min

External dimensions

Instructions for use

1. The conditions for use must comply with the requirements of the nameplate;

2. Environmental conditions:

The altitude shall not exceed 3000 meters;

The surrounding ambient temperature is -30℃~+70℃;

Humidity and heat RH ≤95% (daily average);

There is no direct invasion of rain and snow, no places with severe pollution or severe vibration;

3. The secondary coil must not be opened.

Ordering instructions

1. Rated current ratio;

2. Accuracy level and load;

3. Open hole size;

4. Other special requirements.