LJ-ZW-10kv/12kv Current Transformer are designed for AC distribution systems with a rated voltage of 10kV and a frequency of 50Hz, enabling precise current protection and measurement. Constructed with epoxy resin casting, the interior features superconducting magnetic materials, ensuring high accuracy and capacity. The exterior is insulated with silicone rubber, offering excellent resistance to high and low temperatures, cor

LJ-ZW-10(12) Current Transformer Type designation

The Key Features and Structure of LJ-ZW-10(12) Current Transformer:

• L: Current Transformer.
• J: Zero-Sequence Current measurement.
• ZW: For vacuum circuit breaker models.
• 10, 12: Rated voltage for 10kV and 12kV systems.

This designation emphasizes its zero-sequence current capability and compatibility with vacuum circuit breakers.

LJ-ZW-10(12) Current Transformer Service condition

• Ambient Temperature: -25°C to +40°C
• Altitude: ≤2000m
• Average Daily Temperature: ≤40°C
• Pollution Level: Class II

The LJ-ZW-10(12) Current Transformer combines advanced materials and robust design to deliver reliable and efficient operation in demanding environments.

LJ-ZW-10kv/12kv Current Transformer Technical Parameters

Type	Rated Primary Current (A)	Rated Secondary Current (A)	Accurate and Rated Output (VA)	Rated Insulation Level (kV)
			10p10
LJ-ZW-10(12)	20	1	0.1Ω	10(12)/42
	50		0.2Ω

Notes:

1. Custom specifications or high-accuracy products can be manufactured according to user requirements.
2. During operation, this current transformer can only use one specified ratio at a time. Multiple ratios cannot be used simultaneously.

Outline and Dimensions of Installation

LJ-ZW-10(12) Current Transformer appearance and installation Dimensions

Note: This page offers comprehensive details about the LJ-ZW-10(12) Current Transformer, including technical specifications, accuracy, and installation guidelines. For support with model selection or to discuss customized solutions for specific requirements, please reach out to our expert team.

FAQs for LJ-ZW-10kV zero-sequence CT

1. What are the primary applications of the LJ-ZW-10(12) Current Transformer?
   It is used for current measurement, energy metering, and relay protection in medium-voltage systems, particularly for AC distribution networks with 10kV and 12kV rated voltages.
2. How does the zero-sequence measurement feature enhance its functionality?
   The zero-sequence measurement capability detects ground faults or leakage currents, ensuring precise fault monitoring and protection in the system.
3. What materials are used for insulation in the LJ-ZW-10(12)?
   The transformer uses epoxy resin casting for internal insulation and silicone rubber for external insulation, providing excellent environmental resistance and durability.
4. Can the LJ-ZW-10(12) be customized for specific operational needs?
   Yes, customization options include tailored current ratios, secondary outputs, and enhanced insulation levels to meet unique application requirements.
5. What are the installation requirements for the LJ-ZW-10(12)?
   The transformer is suitable for outdoor use, with a recommended altitude of ≤2000m and an operating temperature range of -25°C to +40°C.
6. Is the LJ-ZW-10(12) compliant with international standards?
   Yes, it adheres to industry standards, including rated insulation levels of 10(12)/42kV, ensuring reliable performance and safety.

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