The LZK-0.66W outdoor open type current transformer is specifically designed for current sampling in low-voltage automatic reactive power compensation devices, and is also suitable for current measurement in outdoor lines of AC power systems with 0.66KV and below. Its outstanding feature is that it does not require wire cutting during installation and can be installed live, making it simple and fast. And it has the characteristics of small size, light weight, and can be opened. The elastic rubber pad on the inside is suitable for clamping on various specifications of wires or cables, without the need for a base to fix. The outer silicone rubber shield prevents the current transformer from being exposed to rain and sun, and has the performance of anti ultraviolet and anti-aging.
This type of current transformer uses high-quality imported silicon steel sheets with high magnetic permeability as the magnetic material, which has the characteristics of divisible core and low magnetic circuit loss. Its semi-circular core and secondary winding are vacuum cast with high-quality epoxy resin in a flame-retardant plastic shell, which is moisture-proof, stable in performance, and does not require maintenance.
Technical parameters of LZK-0.66 outdoor open type current transformer:
Rated frequency: 50Hz or 60Hz;
Rated secondary current: 5A or 1A;
Rated short-time thermal current: 40kA, 1s;
Rated continuous thermal current: 100% In;
Power frequency withstand voltage 3kV, 1min;
Execution standards: IEC 185:1987, GB1208-1997 (China), DL/T 725-2000 (China);
Use condition
Environmental temperature: -350C -+550C,
Daily average temperature: ≤ 400C.
Altitude: ≤ 3000m
Atmospheric conditions: There is no severe pollution in the atmosphere
The rated current ratio, accuracy level, and rated load are expressed as follows:
|
Type |
LZKKtwo-10C |
|
purpose
Purpose |
Measuring current transformers
Measuring current transformer |
|
current ratio Ratio Ione/ Itwo |
Accuracy level and rated load (VA) Acc. class and rated burden |
|
zero point two |
zero point five |
one |
|
100/1 |
|
two point five |
|
|
150/1 |
|
two point five |
|
|
200/1 |
|
three |
|
|
300/1 |
one |
three point five |
|
|
400/1 |
two |
three point five |
|
|
500/1 |
three |
five |
|
|
600/1 |
five |
seven point five |
|
|
100/5 |
|
two point five |
|
|
150/5 |
|
two point five |
|
|
200/5 |
|
five |
|
|
300/5 |
|
five |
|
|
400/5 |
|
seven point five |
|
|
500/5 |
two point five |
ten |
|
|
600/5 |
five |
ten |
|