Zhejiang Dahu Electric Co., LTD is a professional manufacturer of high and low voltage transformers.
LZZBJ9-35D type 35kV high voltage current transformer (CT) is an epoxy resin casting fully enclosed product, suitable for rated frequency of 50Hz or 60Hz, rated voltage of 35kV and below in the power system, used for power measurement, current measurement and relay protection. The following are some of the key technical parameters and features of this model of transformer:
Overview:
LZZBJ9-35D current transformer is suitable for 35kV power system, power supply gas measurement and electrical protection with
.
Normal use conditions:
Ambient temperature: maximum 65 ºC, the average daily not more than 40 ºC, minimum -45 ºC.
Altitude does not exceed 1000m.
Installation place: inside 35kV vacuum circuit breaker.
Atmospheric conditions: the atmosphere is free from filth and aggressive and explosive media that seriously affect the insulation performance of the transformer.
Grounding method of the system: neutral point non-effective grounding system
The system grounding method: neutral point non-effective grounding system.
Structure Introduction:
Indoor epoxy resin casting fully enclosed structure, the core is made of microcrystalline alloy or high-quality conductive silicon steel sheet wound into a ring, the secondary conductor is evenly wound on it. The primary conductor is wrapped with reinforced insulation to avoid turn-to-turn short circuit between conductors. Primary and secondary coils are cast in epoxy resin, which has good insulation and moisture resistance.
The primary and secondary coils are cast in epoxy resin to have good insulation and moisture-proof capability.
Technical Parameters:
Rated primary current: 5A, 1A.
Accurate level combination: 0.2 level, 0.5 level, 10P level.
Rated short-time thermal current (RMS) and rated dynamic stabilizing current (peak value) have different parameters according to different rated primary currents, see the following table
:
5A: 0.2/0.2 class, 15kA/1s, 25kA; 0.5/0.5 class, 6kA/1s, 15kA; 10P/10P class, 4.5kA/1s, 11.25kA.
10A: Class 0.2/0.5, 2kA/1s, 5kA; Class 0.2/10P, 4.5kA/1s, 11.25kA.
15A: Class 0.2/10P, 4.5kA/1s, 11.25kA.
20A: Class 0.5/0.5, 6kA/1s, 15kA; Class 0.5/10P, 12kA/1s, 30kA.
Rated insulation level: 40.5/95/185kV
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Product implementation standards:
GB20840.2-2014 Current Transformer
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Installation use and maintenance:
The transformer arrives at the use of units need to check the packing box should be accompanied by a packing list, product certification, instruction manual and factory certificate of conformity. The product structure has no defects or damage caused by transportation or other reasons. The grounding bolt should be properly grounded before the transformer is used. During operation, the secondary winding must be reliably connected to the load, and the unused secondary winding must be shorted to the secondary outlet terminal.
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Shape and installation dimensions diagram:
Specific dimensions according to the model, need to check the detailed dimensions according to the specific product type
Dimensions.
These parameters provide detailed technical information about LZZBJ9-35D current transformer, which helps to understand its application and performance in the power system.
Audited Supplier 
LZZBJ9-35D type 35kV high voltage current transformer (CT) is an epoxy resin casting fully enclosed product, suitable for rated frequency of 50Hz or 60Hz, rated voltage of 35kV and below in the power system, used for power measurement, current measurement and relay protection. The following are some of the key technical parameters and features of this model of transformer:
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