Detailed Product Description

Current transformer type LAJ-10Q is applicable to the current and power measurement and relay protection of indoor system of rated voltage 10kV and below at a frequency of 50Hz or 60Hz.

Construction

The current transformer is of resin casting 300A and below is semi-closed structure, 400-800A single lure type is of hermetically sealed structure, the product is stiffened for its external insulation.

Technical data

1.       Rated insulation level 11.5/42/75kV (surface dew point and class 2 artificial pollution);

2.       Rated primary current, accuracy classes, rated output and rated short-time thermal current see table1;

3.       Power factor 0.8 (lagging);

4.       Rated secondary current: 5A (or 1A);

5.       The measurement of partial discharge level is in accordance with GB5583-85 and IEC44-4. Apparent partial discharge level not more than 50PC.