Summary
JSZW3-3,6,10 type voltage transformer is semi-closure casting with epoxy resin, which mainly used for measuring voltage or electric energy and protecting relay in power system with frequency 50Hz and rated voltage 3KV, or 6KV or 10KV and the neural point is not effectively grounded. These products have two different types according to installation method: type A and type B.
Type designation
Structure
This model voltage transformer semi-casting type, with small size and good climate adaptability. The iron-core of the transformer applies core type side-iron structure, and made of high quality silicon steel plate by cold rolling and exposing in the air, the primary winding, secondary winding and residual voltage winding wound onto the iron-core concentrically and cast with epoxy resin, the three phases cast and fixed together, the primary winding and terminal A are fully insulated and terminal N is not fully insulated. The wiring please refers to Diagram 1. It has two types: type A and type B according to installation, type A is installed on the side and the installation hole is on the iron-core clamp, type B has a base for installation.
Technical parameter
1, Standard: GB20840.3-2013 Voltage Transformer
2, Technical parameter from
3, The creepage of product surface comply with Grade II of pollution.
4, Other technical parameters please refer to table below:
| Type | Rated voltage ratio(V) | Accuracy class combination | Rated output(VA) | Ultimate output(VA) | Voltage withstand test(KV) | |||||
| 0.2 | 0.5 | 1 | 3 | 6P | Inductive voltage withstand of primary winding | Voltage withstand for power frequency of secondary winding | ||||
| JSZW3-3 | 3000/√3/100/√3/100/3 | 0.5/6P; 1/6P; 3/6P | 90 | 150 | 300 | 75 | 600 | 18 | 2 | |
| JSZW3-6 | 6000/√3/100/√3/100/3 | 150 | 240 | 600 | 100 | 1000 | 23 | 2 | ||
| JSZW3-10 | 10000/√3/100/√3/100/3 | 32 | 2 | |||||||
Wiring diagram
Outline and installation dimension
