35kv Reactor Dry Type Iron Core Neutral Point Grounding Reactor

The CKSC type iron core high-voltage reactor is mainly used in series with high-voltage capacitor banks in 6kV~35kV power systems. It can effectively suppress and absorb high-order harmonics, limit closing inrush current and operating overvoltage, protect capacitor banks, improve the voltage waveform of the system, and enhance the power factor of the power grid.

1. The iron core is made of high-quality and low loss cold-rolled oriented silicon steel sheets, which are punched and cut by high-speed punching machines. They have small burrs, uniform rules, and neat and beautiful stacking, ensuring the performance of low temperature rise and low noise during the operation of the reactor.

2. The coil is of epoxy casting type, with epoxy glass mesh cloth laid inside and outside the coil for reinforcement. The F-grade epoxy casting system is used for casting in a vacuum state. This coil not only has good insulation performance, but also

Good mechanical strength, able to withstand high current impact and thermal shock without cracking.

3. Epoxy cast coils do not absorb water, have low partial discharge capacity, and can operate safely in harsh environmental conditions.

4. The upper and lower ends of the coil are equipped with epoxy pads and silicone rubber anti morning pads, effectively reducing the vibration during coil operation.

Introduction:

1. Application of dry type iron core neutral point grounding reactor It is also called arc suppression coil and used for compensating

capacitive current of grounding failure of transmission system.

2. Structural feature of dry type iron core neutral point grounding reactor

(1)Adopting solid insulation structure formed with epoxy resin, single-phase structure, silicon steel sheet as magnetic medium and

framework structure composed of iron yoke, high fill factor (laminating or radiating type)iron column. Its coil is composed of multiple

encapsulations and shunt wound with multi-strand flat copper conductor with small bore so as to effectively reduce the volume and loss;

(2)The reactor core and winding are not submerged into any liquid, its cooling mode is air self-cooling, free of oil leak, safety and is

convenient for manufacturing and maintenance and operation.

(3)The reactor coil is shunt wound with multi-strand flat copper conductor with small bore so as to effectively reduce the volume and loss;

(4)The encapsulated chamber of the multiple encapsulated reactor coil has axial heat emission air flue, with perfect heat dispersion.

(5)The reactor coil and iron core, after undergoing hot setting, have perfect electric insulation property and mechanical property;

3. Technical feature of dry type iron core neutral point grounding reactor

(1)The coil is made by casting of epoxy resin, with features of inflaming retarding, self extinguishing, free of maintenance, high

mechanical strength, anti-short circuit impact, high insulating strength, small partial discharge, long service life;

(2)The making of the iron core adopts manufacturing technology of dry type transformer, with features of slight vibration and low noise,

little magnetic leakage, small electromagnetic interference;

(3)The integral structure of the product is compact, with small installation dimension and space;

(4)The technical specification of the product conforms to the requirements of the international standard IEC289-88 and ministerial

standard JB-5346-98, its technical performance is up to the current international level of the similar products.

Parameters that users need to provide when ordering

1. Rated capacity of the reactor

2. Rated voltage and frequency of the system

3. Rated reactance or reactance rate of the reactor

4. Maximum operating voltage of the reactor

5. Rated current and maximum continuous current

6. Dynamic and thermal stability current and duration

7. Other special requirements

 
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