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Current Transformer LZZJ-12

Current Transformer LZZJ-12

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Description

 

The current transformer of the type LZZJ-12(Q) is casting resin and fully enclosed product. It is used for metering electric energy and current, relay protection in the electrical system of rated frequency 50Hz or 60Hz and rated voltage 12kV. The transformers can be executed according to the standards IEC60044-1 and GB1208-2006.

 

Model

Current Transformer LZZJ-12

 

Structure feature

Enhanced insulate Rated voltage (kV) Enhanced type

Casting resin insulated Post type

Current transformer

The current transformer is full enclosed and post type. It is small and light. There are four mounting hole of     12 in bottom, but the primaryoutlet should be fixed for the reliable connections. There are one or two ratios.

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Parameters

 

Main Technical parameters

  1. Rated insulated level: 12/42/75kV;
  2. Rated secondary current: 5A, 1A;
  3. Rated primary current, accuracy classes combination, rated output, rated dynamic and thermal current see form;
  4. The conditions of the partial discharge test according to GB1208-2006 current transformer will be fulfilled without exception.
  5. Antipollution class: class.
Rated primary

current(A)

 Accuracy classes Rated output(VA) Rated short-time thermo-current

(kA virtual value)

 Rated short-time thermo-current

(kA virtual value)

 Note
20 0.2S/10P10

0.2/10P10

0.2S/0.2

0.5S/10P10

0.5/10P10

0.5S/0.5

0.5S/0.5/10P10

0.2S/0.2/10P10

0.2/0.5/10P10

0.2S/10P10/10P10

0.5S/10P10/10P10

 10

15

 10 15 1.6/2 4 Single Ratio
30~40 3.15/2 8
50 6.3/2 16
75
100~150 8/2 20
200 12.5/2 31.5
300 20/2 50
400
500~600 15 20 25/4 63
800 31.5/4 80
1000 20 20 25

 

Rated primary

current(A)

 Accuracy classes Rated output(VA) Rated short-time thermo-current

(kA virtual value)

 Rated short-time thermo-current

(kA virtual value)

 Note
20~30 0.5S/10P10

0.2S/10P10

0.2/10P10

10P10/10P10

 10

15

 10 15 1.6/2 4 Double Ratio
30~40 3.15/2 8
40~0
50~75 6.3/2 16
75~100
100~150 8/2 20
150~200
200~300 12.5/4 31.5
300~400 20/4 50
400~600
600~800

800~1000

 15 20 25/4 63
31.5/4 80

Current Transformer

The relation curve between accuracy limit factor and secondary load

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Solutions

 

Outline dimension

LZZJ-12 Outline Dimension

Current Transformer LZZJ-12-2

Current Transformer LZZJ-12-2

Installation dimension

  1. item rated 800-1500A, see numbers with brackets;
  2. item rated 5-150A and 200-600A, see numbers without brackets.

 

Order LZZBJ12-12 Current Transformers for Your Project

We offer LZZBJ12-12 current transformers with a full range of current ratios, accuracy classes, and mounting options to suit any industrial or utility-grade power distribution project.

  • Certified to IEC and GB standards
  • OEM and custom labeling available
  • Tested for partial discharge, insulation resistance, and ratio error
  • Ideal for panel builders, switchgear manufacturers, and EPC contractors

 

METTZ Group stands as a consortium of Chinese electrical firms, renowned for its expertise in manufacturing electrical equipment. We are specialized in crafting a comprehensive suite of transmission and distribution equipment, covering a wide voltage range from 0.4 to 40.5 kV. Our commitment lies in delivering reliable and stable products to our clientele, encompassing vacuum circuit breakers (VCB), gas-insulated switchgear modular units (RMU), solid insulated switchgear (SIS) panels, air insulated switchgear (AIS) panels, and dry compressed air insulated switchgear panels (DIS) and components for each type of products.

Since our inception, METTZ Group has been at the forefront of adopting international cutting-edge technologies and equipment. We pride ourselves on our extensive collaboration and dialogue with leading experts in the electrical technology sector, both within China and internationally. Our offerings are tailored to meet the specific needs of our clients, including Original Equipment Manufacturer (OEM) services, customization of products to unique parameters and dimensions, all in alignment with our customers’ specifications.

METTZ Group is dedicated to innovation, quality, and customer satisfaction, ensuring that we remain a preferred partner for electrical equipment solutions worldwide.

 

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