LZZW-10C.D
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  • LZZW-10C.D
Zhengzhou KBT Transformer Instrument Co., Ltd.

LZZW-10C.D

The LXK Series zero-sequence current transformers are primarily suitable for small-ground-current systems with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 35 kV or less. Their core function is to work in conjunction with DD-11/60 or DD-1/60 relays and signaling devices to detect zero-sequence current (residual current) in three-phase power systems. When asymmetric faults, such as single-phase-to-ground faults, occur in the system, the current transformers can accurately detect them and trigger protective devices, thereby providing ground fault protection and monitoring for cables.

Categories:

Current transformer

Overview
          This series of current transformers features a fully enclosed structure with epoxy resin cast insulation. They are suitable for use in power systems with a rated frequency of 50 Hz or 60 Hz for electricity metering. This type of current transformer eliminates oil contamination and fire hazards, reduces maintenance requirements, and meets the requirements for oil-free operation.This type of current transformer uses epoxy resin as the primary insulation material, offering resistance to arcing, UV radiation, and aging. The core is made of high-quality, high-permeability material that has undergone annealing treatment. Both the primary and secondary windings, as well as the core, are encapsulated in epoxy resin, ensuring excellent insulation performance.
Technical data

Model Number Rated Primary Current (A)     Accuracy Level Rated Secondary Output Short-Time Thermal Current (kA/s) Rated dynamic stability current (kA)
0.2S,0.2 0.5S,0.5 10P15
LZZW-10C 5~150 0.2(S)/10P15
0.5(S)/10P15
0.2(S)/0.5/10P15
0.2(S)/10P15/10P15
10 15 15 100In 250In
200 20 50
300 30 75
400 40 100
500 63 130
600
800
1000
1200 80 200
LZZW-10D 5~150 0.2(S)/0.5/10P15/10P15 10 15 15 100In 250In
200 20 50
300 30 75
400 40 100
500 63 130
600
800
1000
1200 80 200

Overall dimension drawing

 

 

Key words:

Current transformer

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Zhengzhou KBT Transformer Instrument Co., Ltd. is a specialized production enterprise mainly based on power transformers, which integrates product development,production, sales, service and technology consulting.

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