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LZZBJ9-24 Electrical Waterproof High Accuracy Current Transformer for Substation Usage


The transformer is referred to as the measuring and protection current transformer and voltage transformer collectively. It is the basic equipment that helps achieve electrical primary and secondary system interconnections. The conversion of high voltage and high current in the primary system into low voltage and low current to be used in measuring instruments, relay protection, and automatic devices in the secondary system is performed by means of transformers. Besides being the element connecting the primary system to the secondary system in the power system, it also plays a role as an element of isolation.

 
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Product Overview


The LZZBJ9-24 Electrical Waterproof High-Accuracy Current Transformer is designed for precise current measurement and protection in electrical power systems, particularly in substations. This Current Transformer is built to deliver high accuracy under various operational conditions, ensuring the reliability and safety of the power distribution network. Its robust waterproof design makes it ideal for outdoor installations, where it can withstand harsh environmental factors without compromising on performance.


Product Features


High Accuracy: The Current Transformer offers exceptional accuracy in current measurement, making it suitable for both protective and metering applications in power systems.


Waterproof Design: With an IP67 waterproof rating, this Current Transformer is highly resistant to moisture, making it perfect for use in outdoor substations and other exposed environments.


Wide Range of Applications: It supports a wide range of current ratings, allowing it to be customized according to specific application needs.


Durability: Built with high-quality materials to ensure long-lasting durability and minimal maintenance even in harsh conditions.


Compact and Lightweight: Designed to be compact and lightweight, it can easily be installed in tight spaces without compromising on functionality.


Insulation: The Current Transformer is equipped with superior insulation, ensuring safe operation and minimizing the risk of electrical faults.


Wide Temperature Range: This Current Transformer operates reliably across a wide range of temperatures, from -40°C to 70°C, making it suitable for a variety of climates.


Product Advantages


Enhanced Measurement Accuracy: The LZZBJ9-24 Current Transformer ensures highly accurate current measurements, which is crucial for both monitoring and protective functions in the electrical system.


Waterproof and Durable: Its IP67 waterproof rating ensures long-term protection from water and moisture, making it ideal for use in outdoor substations and other challenging environments.


Cost-effective: The Current Transformer offers long-term value with minimal maintenance requirements, reducing the overall cost of ownership.


Reliability: With high-quality materials and precise manufacturing, the Current Transformer delivers reliable performance, minimizing downtime and ensuring the continuous operation of power systems.


Easy Integration: Its compact size and versatile design make it easy to integrate into existing power distribution systems without requiring extensive modifications.


Product Applications


Power Substations: Ideal for use in substations, where accurate current measurement is essential for protection and control.


Electrical Distribution Systems: Used in distribution systems for measuring current, enabling precise monitoring and regulation of the electrical flow.


Renewable Energy Systems: Can be used in solar, wind, or hydroelectric power systems to measure and monitor electrical output, ensuring the efficiency and reliability of these energy sources.


Industrial Facilities: Applied in large-scale industrial facilities to monitor electrical consumption and maintain efficient power usage.


Metering: Used for energy metering in residential, commercial, and industrial buildings to provide accurate billing information.


Frequently Asked Questions (FAQ)


1.What is a Current Transformer?

A Current Transformer is an electrical device used to measure alternating current (AC). It provides a scaled-down current that is easy to measure and analyze. This is particularly useful in power systems for both monitoring and protection.


2.How does the LZZBJ9-24 Current Transformer work?

The LZZBJ9-24 Current Transformer works by converting high current levels into proportionate lower current values, which can then be easily measured using standard metering equipment. It is typically used for monitoring current flow in substations and other power systems.


3.Is the LZZBJ9-24 Current Transformer suitable for outdoor use?

Yes, the LZZBJ9-24 Current Transformer is designed with a waterproof IP67 rating, making it ideal for outdoor installations, including substations and power lines exposed to environmental elements.


4.What is the accuracy of the LZZBJ9-24 Current Transformer?

The Current Transformer offers high accuracy, ensuring precise current measurement for both metering and protection purposes. This accuracy is critical in maintaining the efficiency and safety of power systems.


5.What are the temperature and environmental limits for the Current Transformer?

The LZZBJ9-24 Current Transformer operates reliably in temperatures ranging from -40°C to 70°C, making it suitable for diverse climates and environmental conditions.


6.Can the LZZBJ9-24 be used in renewable energy applications?

Yes, the Current Transformer is ideal for renewable energy systems such as solar or wind power installations, where accurate current measurement is essential for performance monitoring and grid integration.


7.How easy is it to install the Current Transformer?

The Current Transformer is designed to be compact and lightweight, making it easy to install even in constrained spaces. Its user-friendly design ensures hassle-free installation and integration into existing systems.


8.Is the Current Transformer durable?

Yes, the LZZBJ9-24 Current Transformer is built to withstand harsh conditions. It is made from high-quality materials and is designed to provide long-lasting, reliable performance with minimal maintenance.

1..Insulation level:24/65/125kV
2.Power factor:cosφ=0.8(lag)
3. Rated secondary current: 5A or 1A
4.Rated frequency :50Hz or 60Hz

5.Ambient temperature:-5ºC~+40ºC
6.Weight: 38kg

Rated primary current
(A)

Accuracy class

Rated output
(VA)

Rated short-time
thermal current (kA/S)

Rated Insulation
level  (kA)

5

0.2S/0.5/10P10

0.2S/10P10/10P10

0.2S/10P20

10/10/15

10/15/15

10/15

0.36

0.9

10

0.72

1.8

15

1.08

2.7

20

1.44

3.6

25

1.8

4.5

30

2.16

5.4

40

2.86

6.3

50

3.6

7.2

60

4.32

8.1

75

5.4

13.5

80

5.76

14.4

100

7.2

18

120

8.64

21.6

150

10.8

27

200

14.4

36

250

18

45

300

21.6

54

400

28.8

63

500

36

72

600

43.2

108

800

57.6

120

1000-2000

72

144


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