1.Product Description

The zero-sequence current transformers(cables types) with the diameter of 80-300 include various high-precision zero-sequence current transformers different in capacity , ratio and accuracy limit factor, as well as other high-precision zero-sequence current transformers matching with small current grounding line selection devixes and relays, which can be classified as integral types and modular- based products.

2.Type Designation

Blank Space: matching for small current ground line selection device

A:matching for DD11/60 type relays

B:matching for DL11/0.2 type relays

J:matching for relay protection device

3.Usage Condition

3.1 Highest temperature: +80°C;

3.2 Daily average temperature: ≤+60°C;

3.3 Lowest temperature: -20°C.

3.4 Height above sea level: ≤1000m (When specially orders for plateau using)

3.5 Relative humidity: <85%

4. Ordering Notes

4.1 Product model, inner bore diameter(mm);
4.2 Primary zero sequence current, secondary sequence current (or current
ratio)

4.3 Secondary-side loads capacities or loaded impedance;
4.4 Accurate limiting factor, accuracy class (if there is).