Overview
The JDG4-0.5 voltage transformer is suitable for use in power systems with a rated frequency of 50HZ or 60Hz and a rated voltage of 0.5KV or below, for measuring electrical energy and voltage and for relay protection.
Model meaning
JDG4-0.5
J-Voltage Transformer D-Single Phase G-Dry Type 4-Design Number 0.5 Voltage Class
Structure Introduction
The JDG4-0.5 voltage transformer is made of high-quality cold-rolled silicon steel sheets with a C-shaped iron core. The primary and secondary windings are wrapped around the middle columns of two C-shaped iron cores, and the output terminals are both led out from the terminal block. Overloading operation is strictly prohibited.
Technical Specifications
| Rated voltage ratio (V) |
Rated output (VA) |
Maximum output (VA) |
| zero point five |
one |
three |
| 200/100 |
fifteen |
twenty-five |
fifty |
one hundred |
| 300/100 |
| 500/100 |
Appearance and installation dimensions


JDG4-0.5 Voltage Transformer