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LZZBJ9-10A4G Current Transformer - 10kV High-Voltage Energy Metering | China Suppliers & Factory

The LZZBJ9-10A4G current transformer is an essential device tailored for power systems operating at a rated frequency of 50Hz or 60Hz and a rated voltage of 10kV. Manufactured in China, this current transformer is particularly suitable for critical applications such as energy metering, current measurement, and relay protection. Our factory produces this device with advanced technology to ensure stable operation in high-voltage environments, delivering precise data that supports effective energy management and enhances system safety. Adhering to the manufacturing standards GB20840.1-2010 and GB20840.2-2014, our products stand as a reliable choice among suppliers for those seeking high-quality current transformers in the market

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Product Detail

Model and its meaning

Summarize

The LZZBJ9-10A4G current transformer features clean lines and an aesthetically pleasing design. This design not only enhances its appearance but also improves the device's overall efficiency and effectiveness. Its compact size and flexible mounting options make it ideal for indoor environments where space is limited. The transformer's easy-to-clean surface ensures it remains in optimal condition for extended periods, which is crucial for maintaining accurate measurements.

Normal Service Condition

The equipment should be installed indoors and able to operate normally in temperatures ranging from a maximum of 40°C to a minimum of -5°C, with the average daily temperature not exceeding 30°C. Furthermore, the atmosphere in the installation environment must be free of significant pollutants to ensure the stability and reliability of the equipment.

Technical Parameters

Product Model	Rated Primary Current (A)	Accuracy Level Combination	Rated Output (VA)	Rated Short-Term Thermal Current (kA)	Rated Dynamic Stability Current (kA)
LZZBJ9-10A4G	5	0.2/10P10 0.5/10P10 0.2S/0.2S	10/15 15/15 15/15	0.45	1
	10			0.9	2
	15			1.35	3
	20			1.8	4
	30			2.7	6
	40			3.6	8
	50			4.5	10
	75			6.75	15
	100			9	20
	150			13.5	30
	200			18	40
	300			24.5	44
	400			24.5	44
	500			32	59
	600			32	59
	800			32	59
	1000			45	110

Rated secondary current: 5A or 1A | Rated insulation level: 12/42/75 kV

Structure and Characteristics

Fully enclosed epoxy resin-cast structure for excellent insulation and moisture resistance.
Sharp outline and aesthetically pleasing appearance with easy surface cleaning and maintenance.
Baseplate equipped with a grounding bolt and four mounting holes for easy and secure installation.

Frequently Asked Questions

Q What is the LZZBJ9-10A4G current transformer used for?

The LZZBJ9-10A4G is an indoor current transformer designed for accurate current measurement and metering in power distribution systems rated up to 10kV. It is suitable for both revenue metering and protection applications.

Q What accuracy classes are available for the LZZBJ9-10A4G?

The LZZBJ9-10A4G supports multiple accuracy level combinations including 0.2/10P10, 0.5/10P10, and 0.2S/0.2S, making it suitable for high-precision metering as well as protection relay applications.

Q What is the rated secondary current of the LZZBJ9-10A4G?

The rated secondary current of the LZZBJ9-10A4G is either 5A or 1A, depending on the specific configuration required for your application and connected instrumentation.

Q What are the operating temperature requirements for this transformer?

The LZZBJ9-10A4G is designed for indoor installation and operates normally in temperatures ranging from -5°C (minimum) to +40°C (maximum), with an average daily temperature not exceeding 30°C. The installation environment should also be free of significant pollutants.

Q What is the insulation level of the LZZBJ9-10A4G?

The rated insulation level of the LZZBJ9-10A4G is 12/42/75 kV, corresponding to the rated voltage, power-frequency withstand voltage, and lightning impulse withstand voltage respectively, ensuring reliable performance in 10kV systems.

Q How is the LZZBJ9-10A4G installed and maintained?

The LZZBJ9-10A4G features a baseplate with a grounding bolt and four mounting holes, enabling straightforward and secure installation. Its fully enclosed epoxy resin-cast structure provides moisture resistance and an easy-to-clean surface, minimizing maintenance requirements over its service life.