Oil Type Reactor

• Application: Power, Instrument
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000
• Frequency Characteristics: Power Frequency
• Brand: OEM
• Rated Voltage: 10kv 35kv
• Rated Frequency: 50Hz 60Hz
• Insulation Level: A Grade
• Connections: Y
• Rated Reactance Rate: 100%
• Transport Package: Nake or Wooden Package
• Specification: Customized
• Trademark: CHANGJI
• Origin: Shanghai, China

Product Description

Oil-Type Reactor main techincal desctription

1. General Description

Oil-type reactors (shunt reactors) are essential for reactive power compensation in 35kV and below power systems, primarily used for voltage stabilization and harmonic suppression. These oil-immersed devices feature robust insulation and cooling capabilities.

2. Key Technical Parameters

• Rated Voltage: ≤35kV (standard levels: 10kV, 20kV, 35kV)

• Capacity Range: 1-50MVar (customizable)

• Insulation Class:

  • IEC 60076-3 for power frequency withstand (35kV: 70kV/170kV AC/LI)

  • ANSI C57.21 for impulse withstand

• Losses:

  • No-load loss ≤0.3% rated capacity (IEC 60076-8)

  • Load loss ≤0.5% rated capacity

• Overload Capacity: 110% continuous current (IEC 60076-7)

3. Design Features

• Core: Grain-oriented silicon steel with minimized magnetic leakage

• Winding: Oil-paper insulated, epoxy-sealed for moisture resistance

• Cooling: ONAN (oil natural air natural) or ONAF (oil forced air forced) modes

• Protection: Built-in gas relay (Buchholz) and pressure relief device

4. Standards Compliance

• IEC: 60076 series (power transformers/reactors)

• ANSI: C57.21 (shunt reactor testing)

• Safety: Partial discharge ≤10pC (IEC 60076-3)

5. Environmental Adaptability

• Temperature range: -30°C to +45°C

• Altitude: ≤1000m (derating required for higher elevations)

• Humidity: ≤95% daily average

6. Optional Features

• Tap changers for adjustable reactance

• Integrated monitoring sensors (temperature, oil level)

• Corrosion-resistant coatings for coastal areas

Detailed Product Description of 35KV and Below Oil - Type Reactors
 

1. General Introduction

The oil - type reactor is a crucial component in electrical power systems, especially for 35KV and below voltage levels. These reactors play a vital role in regulating current, improving power factor, and ensuring the stable operation of the electrical grid. Designed in strict accordance with IEC and ANSI standards, our oil - type reactors offer high performance, reliability, and safety.
 

2. Technical Parameters
 

2.1 Voltage Rating

The oil - type reactors are available for 35KV and below voltage levels. This wide range of voltage ratings allows for their application in various power distribution systems, from small industrial plants to large commercial complexes. The specific voltage rating can be precisely tailored to meet the requirements of different projects, ensuring seamless integration into existing electrical infrastructure.
 

2.2 Current Rating

The current rating of the oil - type reactor is carefully designed based on the application needs. It can handle a variety of current loads, from a few amperes to hundreds of amperes. The ability to carry different current levels makes the oil - type reactor a versatile solution for different electrical circuits, whether it is for filtering harmonics or limiting short - circuit currents.
 

2.3 Reactance Value

The reactance value of the oil - type reactor is a key parameter. It is determined according to the specific electrical characteristics of the system where it will be installed. By adjusting the reactance value, the reactor can effectively control the flow of alternating current, reducing the impact of sudden current surges and improving the overall stability of the power system.
 

2.4 Insulation Level

In line with IEC and ANSI standards, the oil - type reactor has a high - quality insulation system. The insulation materials used are carefully selected to withstand the electrical stresses at the rated voltage and temperature. This ensures long - term reliable operation and reduces the risk of electrical breakdown, enhancing the safety of the entire power system.
 

2.5 Temperature Rise

The oil - type reactor is designed to operate within a specified temperature rise limit. The heat generated during operation is efficiently dissipated through the oil - cooling system. This not only ensures the normal operation of the reactor but also extends its service life. The temperature rise characteristics are carefully tested and verified to meet the strict requirements of IEC and ANSI standards.
 

3. Structural Features

The oil - type reactor consists of a coil, an iron core, and an oil - filled tank. The coil is wound with high - quality copper or aluminum wire, which has low resistance and high conductivity. The iron core is made of high - permeability magnetic materials, which can effectively enhance the magnetic field and improve the performance of the reactor. The oil - filled tank provides insulation and cooling for the internal components, protecting them from environmental factors and ensuring stable operation.
 

4. Applications

The oil - type reactor is widely used in 35KV and below power systems. It can be used in power factor correction circuits to improve the efficiency of power transmission and reduce energy losses. In addition, it can also be used in harmonic filtering circuits to suppress harmonic currents and improve the quality of electrical power. In short - circuit current limiting applications, the oil - type reactor can effectively limit the short - circuit current, protecting electrical equipment from damage.
 

5. Quality Assurance

All our oil - type reactors are manufactured in strict compliance with IEC and ANSI standards. From raw material procurement to the final product testing, every step is strictly controlled to ensure the high quality of the products. Our products have passed a series of rigorous tests, including electrical performance tests, insulation tests, and temperature rise tests, to guarantee their reliability and safety in actual use.

In conclusion, the 35KV and below oil - type reactors are essential and reliable electrical equipment. With their excellent technical parameters and structural features, they can meet the diverse needs of different power systems. Whether it is for power distribution, power quality improvement, or equipment protection, the oil - type reactor is a worthy choice.

Our BKS series oil type Shunt reactor is used to compensate the capacitive charging current of the grid, limit the rise of the system power frequency voltage and the operating overvoltage , so that reducing the insulation level of the system and ensure the reliable  operation of the grid.With the continuous expansion of urban scale and the transformation of urban power grid, overhead line transmission is gradually replaced by underground cable, which makes the capacitive charging current of transmission network increase sharply. In order to reduce the rise of power frequency voltage and insulation level of the system, ensure the safe and reliable operation of the system and the power supply quality of the city's power grid,the Shunt Reactor is widely used in urban distribution network.

Structural features:
1.The iron core is made of high-quality silicon steel sheet, wrapped with high-strength glass ribbon, thermally fixed, and fixed with special iron core curing paint, which can effectively reduce the vibration between iron core cakes and reduce the noise.
2.The coil is made of high quality paper wrapped copper wire. In order to ensure the safety and reliability of insulation structure, dot adhesive paper is used to prevent coil winding displacement.
3.The reactor adopts ripple oil tank with fully sealed structure. The thermal expansion and cold contraction of transformer oil are adjusted by the elasticity of ripple plate to ensure internal isolation from air, prolong service life and reduce maintenance.

Structural features:
1.The iron core is made of high-quality silicon steel sheet, wrapped with high-strength glass ribbon, thermally fixed, and fixed with special iron core curing paint, which can effectively reduce the vibration between iron core cakes and reduce the noise.
2.The coil is made of high quality paper wrapped copper wire. In order to ensure the safety and reliability of insulation structure, dot adhesive paper is used to prevent coil winding displacement.
3.The reactor adopts ripple oil tank with fully sealed structure. The thermal expansion and cold contraction of transformer oil are adjusted by the elasticity of ripple plate to ensure internal isolation from air, prolong service life and reduce maintenance.

Environment:
1. The altitude shall not exceed 2000m;
2. The operating environment temperature is - 25 ºC to + 45 ºC, and the relative humidity is not more than 90%;
3. There is no harmful gas and inflammable and explosive materials around;The surrounding environment should be well ventilated.

Product Parameters

Model	Capacity(Kvar)	Voltage(kV)	Current(A)	Reactance(Ω)	Oil Weight (kg)	Total Weight(kg)	SIZE mm(L*W*H)
BKS-72/10	72	10.5	3.96	1530.9	60	320	710×510×940
BKS-114/10	114	10.5	6.27	966.85	97	420	780×610×1110
BKS-144/10	144	10.5	7.92	765.4	120	660	890×710×1210
BKS-300/10	300	10.5	16.5	367.4	140	790	1220×750×1310
BKS-600/10	600	10.5	33	183.8	560	2250	1430×910×1640
BKS-1200/10	1200	10.5	65.98	91.88	710	2690	1710×1010×1670
BKS-3000/10	3000	10.5	164.96	36.75	1300	4200	2100×1710×1800
BKS-8000/10	8000	10.5	439.9	13.78	3200	8150	2700×2230×2700
BKS-10000/10	10000	10.5	549.86	11.02	4200	13200	3000×2400×3100
BKS-5000/35	5000	38.5	74.98	296.45	3800	11500	2700×2300×3300
BKS-8000/35	8000	38.5	119.97	185.28	4500	15100	3100×2400×3500
BKS-10000/35	10000	38.5	149.96	148.23	4900	17100	3400×2900×3500
BKS-20000/35	20000	38.5	299.92	74.11	7850	27500	4100×3100×4200

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Company Profile

Shanghai Changji Electric Co., Ltd. is a professional enterprise specializing in the production of various reactors, power transformers, dry-type transformers, amorphous alloy transformers, special transformers, and box-type substations.
For years, the company has adhered to a customer-first philosophy, earning trust and support through a strong commitment to product quality. By continuously improving quality management and pursuing excellence, Zhejiang Changji Electric Co., Ltd. Strives to secure its market position. With full enthusiasm, sincere cooperation, and a win-win business approach, we warmly welcome domestic and international customers to visit, inquire, and discuss potential collaborations!

Equipped with modern production facilities, advanced manufacturing processes, and comprehensive testing equipment, the company ensures the production of high-performance products featuring innovative designs, low losses, low temperature rise, low noise, high impact resistance, and strong short-circuit withstand capability.

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