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LMK1(BH)-0.66 current transformer

0102030405

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China LQZJ1(4,5)-0.66 Series Current Transformer - Reliable Suppliers and Factory for Power Systems

The LQZJ1(4,5)-0.66 series current transformers are ideal for power systems operating at a frequency of 50Hz or 60Hz, designed for rated voltages of 0.66kV or less. These current transformers are essential for accurate current and energy measurement, as well as for effective relay protection. Manufactured in China, our products adhere to strict quality standards, specifically GB20840.1-2010 and GB20840.2-201As a leading supplier in the industry, our factory is committed to providing high-quality current transformers that meet your power system needs

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Product Detail

Model and its meaning

Normal Usage Conditions

Installation Site: LQZJ1, 4-0.66 is for indoor use. LQZJ5-0.66 is for outdoor use.
Atmospheric Conditions: There is no severe pollution in the atmosphere.

🌡️ Ambient Temperature — LQZJ1, 4-0.66 (Indoor)

Maximum air temperature: 40℃ | Minimum temperature: -5℃ | Daily average: does not exceed 30℃

🌡️ Ambient Temperature — LQZJ5-0.66 (Outdoor)

Maximum temperature: 40℃ | Minimum temperature: -25℃ | Daily average: does not exceed 30℃

Technical Parameters

Model	Rated Voltage Ratio	Rated Output				Rated Short-Term Thermal Stability Current	Rated Dynamic Stable Current
		0.2	0.2S	0.5S	0.5
LQZJ1(4,5)-0.66	30、40、50、75、100、150、 200、250、300、400、500、 600、800、1000、1200、1500	10				50	100

⚡

Rated Secondary Current 5A or 1A

🔒

Rated Insulation Level 0.66 / 3kV

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 core are all cast in polyester resin, featuring excellent insulation performance and moisture resistance.

There is an installation base plate at the bottom or on one side. The secondary outgoing line end is equipped with an anti-electricity theft cover.

This series of current transformers are small in size, light in weight and have excellent insulation performance. They are alternative products to the old model LQG-0.5.

Frequently Asked Questions

Q What is the difference between LQZJ1,4-0.66 and LQZJ5-0.66 in terms of installation?

LQZJ1 and LQZJ4-0.66 are designed for indoor installation, while LQZJ5-0.66 is specifically built for outdoor use. The outdoor model also supports a wider minimum operating temperature of -25℃ compared to -5℃ for the indoor version.

Q What rated voltage ratios are available for the LQZJ1(4,5)-0.66 current transformer?

The LQZJ1(4,5)-0.66 is available in a wide range of rated voltage ratios: 30, 40, 50, 75, 100, 150, 200, 250, 300, 400, 500, 600, 800, 1000, 1200, and 1500, accommodating a broad spectrum of application requirements.

Q What is the rated insulation level of this current transformer?

The rated insulation level of the LQZJ1(4,5)-0.66 current transformer is 0.66/3kV, ensuring reliable electrical isolation and safety in low-voltage distribution systems.

Q What material is used to enclose this current transformer, and what are its benefits?

This series is fully enclosed with polyester resin, which encapsulates the primary and secondary windings as well as the core. This provides excellent insulation performance and moisture resistance, making the product highly durable and safe even in humid environments.

Q Is the LQZJ1(4,5)-0.66 a replacement for any older model?

Yes. The LQZJ1(4,5)-0.66 series serves as a direct alternative replacement for the older model LQG-0.5. It offers improved compactness, lighter weight, and superior insulation performance compared to its predecessor.

Q What are the rated secondary current options for this current transformer?

The LQZJ1(4,5)-0.66 current transformer supports two rated secondary current options: 5A or 1A. The appropriate choice depends on the measurement and metering equipment connected to the secondary circuit.