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Heavy Reactor Transformer

Name: Heavy Reactor Transformer
Brand: URJA TECHNIQUES (INDIA) PVT. LTD.

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MOQ : 1 Unit

Heavy Reactor Transformer Specification

Load Loss
Excitation Loss <0.1%, Load Loss <1.5%

Operating Temperature
-25C to +50C

Cooling Type
ONAN/ONAF (Oil Natural Air Natural/Oil Natural Air Forced)

Low Voltage
400 V to 33 kV (customized)

Standard
IS 2026 / IEC 60076 / ANSI / IEEE

Capacity
Up to 500 MVA

Coil Material
High Conductivity Copper

Rated Voltage
11 kV/33 kV/66 kV/220 kV and above (as per requirement)

High Voltage
11 kV to 220 kV (customized)

Dimension (L*W*H)
Customized as per rating, example: 3000 mm x 2500 mm x 5000 mm

Voltage Booster Type
Tap Changer (On Load / Off Load Optional)

Product Type
Heavy Reactor Transformer

Material
Copper

Output
Product wise

Frequency (MHz)
50 Hertz (HZ)

Efficiency
99.9%

Phase
Three Phase

Usage
Heavy Industrial Applications, Power Distribution, Substations, and Power Plants

Coil Structure
Toroidal/Layer Wound

Coil Number
3 (for Three-Phase)

Power Scope
Up to 500 MVA (Typically Customized as per Requirement)

Weight
Varies, typically from 5 to 80 Tons depending on rating

Cooling Oil
Mineral Oil/Enviro-friendly Oil as per IEC 60296

Impedance Voltage
6% to 18% (Typical)

Relay & Protection
Buchholz Relay, Pressure Relief Valve, Oil Level Indicator, Temperature Indicator

Noise Level
Less than 65 dB @ 1 meter

Ambient Humidity
Up to 95% non-condensing

Dielectric Strength
75 kV/minute under standard test conditions

Service Life
Designed for up to 30 years with regular maintenance

Surface Finish
Hot Dipped Galvanized / Painted with Anti-corrosive Coating

Short Circuit Withstand
Designed for Dynastic and Thermal Short-Circuit withstanding as per IEC

Core Construction
Cold Rolled Grain Oriented (CRGO) steel core

Protection Class
IP54/IP55 (as per enclosure specification)

Insulation Class
Class A/B/F, as per application

Mounting Type
Floor Mounted with Bi-directional Rolling Wheels

Altitude Capability
Up to 1000 meters above sea level (higher on request)

Heavy Reactor Transformer Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
100 Units, , Per Month

Delivery Time
2-3 Months

About Heavy Reactor Transformer

Leveraging on efficient product supply chain management & ethical business dealings, we are engaged in manufacturing and exporting Heavy Reactor Transformer. Manufactured by our skilled manpower using modern machines & equipments, these reactor transformers are provided to our clients without any delay. Immensely used in electrical & electronic industries, these transformers are available in different technical specifications. Before final dispatch, our Heavy Reactor Transformer is rigorously inspected on certain quality parameters.

An advanced grade of Reactor Transformers are offered by Urja Techniques (INDIA) Pvt. Ltd. These electrical devices have become the most essential part of the the modern energy systems. This compact device is generally applied for the compensation of reactive power in long high voltage transmission lines. These have the air cored series where the shunt reactor of up to 2 MVA, 33Kv can be directly connected to the tertiary binding of 3-winding transformer or the power line. Primary winding gets divided into two independent fed sets of phase coils wounds in opposite direction. These get arranged on symmetrical legs of the core element and get separated by a common yoke. On the other hand the secondary short-circuited reactor winding is reduced to at least one close loop member with loop portions separated by the common yoke. The single, poly phase apparatus has at least one primary coil per set that includes a controllable device in circuit relation there with to enable control of one primary coil relative to the other, either in current magnitude or in current phase shift. The controllable device being either a silicon control rectifier or transistor.

Engineering for Endurance

This transformer features a CRGO steel core, high dielectric strength (75 kV/minute), and Class A/B/F insulation to withstand demanding industrial environments. Designed for both dynamic and thermal short-circuit compatibility as per IEC standards, it guarantees robust, uninterrupted operation for decades.

Reliable Protection and Monitoring

Equipped with essential protection devices-Buchholz relay, pressure relief valve, oil level and temperature indicators-this transformer assures early warning and real-time monitoring to protect against electrical and mechanical faults. Surface finishing provides corrosion resistance even in high-humidity or corrosive settings.

Performance and Customization

With an impedance voltage range of 6% to 18% and an operating noise level below 65 dB, this transformer is designed for minimal energy loss (excitation loss <0.1% and load loss <1.5%). It supports custom configurations in voltage, coil structure, and cooling to meet unique operational requirements across power plants and substations.

FAQ's of Heavy Reactor Transformer:

Q: How is the Heavy Reactor Transformer protected against electrical faults?

A: This transformer is equipped with advanced protective devices including a Buchholz relay, pressure relief valve, oil level indicator, and temperature indicator. These features ensure early detection of faults and effective mitigation, enhancing operational safety and extending service life.

Q: What insulation classes are available, and how are they selected?

A: The transformer can be provided with Insulation Class A, B, or F, depending on application requirements. Selection depends on operational temperatures and environmental factors, with higher classes offering improved thermal performance for demanding installations.

Q: Where can this transformer be installed and operated?

A: Designed for heavy industrial applications, substations, and power plants, it supports floor mounting with bi-directional rolling wheels. The transformer operates efficiently in ambient humidity up to 95% (non-condensing) and at altitudes up to 1000 meters (higher on request).

Q: When does the transformer require maintenance, and what is its typical service life?

A: With regular preventive maintenance, the transformer is engineered for a service life of up to 30 years. Maintenance intervals depend on site conditions, but routine inspection of oil, protection relays, and cooling systems is recommended to ensure optimal performance.

Q: What benefits does the use of CRGO steel core provide?

A: A CRGO (Cold Rolled Grain Oriented) steel core increases magnetic flux efficiency, reduces core losses, and optimizes performance. This increases overall efficiency, reduces operational costs, and prolongs equipment lifespan.

Q: How is the voltage adjusted or regulated in this transformer?

A: The transformer features an optional tap changer (on-load or off-load) that allows for voltage regulation and adjustment during operation or maintenance, providing flexibility for various network conditions.

Q: What type of cooling oil is used and how does it contribute to transformer performance?

A: The cooling can be provided by mineral oil or environmentally friendly oil, compliant with IEC 60296. Efficient oil cooling systems (ONAN/ONAF) ensure thermal stability, maintain insulation properties, and support reliable operation in diverse ambient conditions.

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