Overview
LQZJ1 (4,5) -0.66 series current transformers are suitable for current and energy measurement and relay protection in power systems with rated frequency of 50Hz or 60Hz and rated voltage of 0.66kV and below.
The product implementation standard is GB 1208 "Current Transformers".
Model and its meaning

Normal usage conditions
Installation location: LZZJ1,4-0.66 is indoors; LQZJ5-0.66 is for outdoor use.
Environmental temperature:
LQZJ1, Environmental temperature of 4-0.66 current transformer: maximum temperature of 40 ℃; Minimum temperature -5 ℃;
The daily average temperature does not exceed 30 ℃.
LQZJ5-0.66 current transformer ambient temperature: maximum temperature 40 ℃; Minimum temperature -25 ℃;
The daily average temperature does not exceed 30 ℃.
Atmospheric conditions: There is no severe pollution in the atmosphere.
Technical Specifications
|
Product model |
Rated primary current (A) |
One ampere turn count |
Rated short-time thermal stability current (kA/s) |
Rated dynamic stability current (kA/s) |
|
zero point two |
0.2S |
zero point five |
0.5S |
|
LQZJ1(4,5)-0.66 |
30, 40, 50, 75, 100, 150, 200, 250, 300, 400, 500, 600, 800, 1000, 1200, 1500 |
ten |
fifty |
one hundred |
Structure and Characteristics
This series of current transformers are fully enclosed products cast with polyester resin. The primary and secondary windings, as well as the iron core, are all cast with polyester resin, providing excellent insulation performance and moisture resistance. There is an installation base plate at the bottom or on one side. The secondary output terminal is equipped with an anti-theft cover. This series of current transformers has a small volume, light weight, and superior insulation performance, making it a substitute for the old model LQG-0.5.
Outline drawing and installation dimensions


Ordering Instructions
Please provide the following parameters when placing an order:
Product model.
The rated current ratio is A.
Accurate level combination and rated output VA.
The altitude of the environment is m.
Note: If users have special requirements, they can negotiate with our company to determine.