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Earthing Transformers

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MOQ : 100 Sets

Earthing Transformers Specification

Cooling Type
ONAN (Oil Natural Air Natural)

Rated Voltage
6.6 kV - 33 kV

Voltage Booster Type
Optional auxiliary winding

Dimension (L*W*H)
Customized

Load Loss
As per IS/IEC standards

Operating Temperature
-20C to +50C

High Voltage
6.6 kV - 33 kV

Capacity
Up to 10,000 kVA

Low Voltage
433 V - 690 V

Coil Material
Copper/Aluminium

Product Type
Earthing Transformer

Material
Copper & CRGO Laminated Core

Output
Custom as per requirement

Frequency (MHz)
50/60 Hz

Efficiency
Up to 99%

Phase
Three Phase

Usage
Earthing for neutral grounding in distribution networks and power substations

Coil Structure
Toroidal / Layer Wound

Coil Number
Two winding / Zig-Zag winding

Power Scope
Upto 10 MVA

Weight
Up to 5000 kg

About Earthing Transformers

Since its inception in the year 2005, Mangal Engineers And Consultant has been engaged in manufacturing, exporting and supplying high-performing Earthing Transformers that are widely used for one phase, or more, faults to earth for voltage transmission. Our ingeniously designed range of Earthing Transformers is efficient in producing current supply through lowering down the impedance of value of currents because of strongly inter connected winding. Offered transformers are manufactured in compliance with international quality standards using supreme quality parts and components under the adept guidance of our electrical engineering experts. Our complete range of Earthing Transformers is tested on several parameters for assuring its functionality in terms of restraining the fallacious flowing of currents and excellent mechanical strength. Available in various capacities to meet the diverse needs of our clients, these Earthing Transformers are offered at market-competitive prices.

Key Features:

Fabricated with technology that gives alert through alarm as voltage decreases the particular value
Our range of Earthing Transformers designed in a way to function even in faulty condition
Intelligently designed to sense the drop in voltage
Determine the value of current as preferred or recommended
Assuring of optimum current distribution
Designed with magnetic line of force for neutralizing currents
Capable of maintaining the desired supply of voltage at normal current
Shock proof body, thus guaranteeing optimum functionality

Precision Engineering for Reliability

Our earthing transformers are designed for rigorous power distribution environments. Each unit meets IS 2026 and IEC 60076 standards, incorporates high-grade copper windings or CRGO laminated cores, and operates at up to 99% efficiency. This level of engineering ensures dependable performance, even under continuous service at fault currents up to 50 kA for 1 second.

Flexible Customization Options

These transformers can be tailored to exact site requirementschoose from Class A, B, or F insulation, multiple mounting types, either porcelain or polymeric bushings, and custom dimensions. Optional accessories like oil level gauges, Buchholz relays, and temperature indicators can be included as needed, making them suitable for a wide range of installations.

Built for Tough Environments

With robust mild steel tank construction and hermetic sealing, the transformers are protected against harsh operating conditions. Epoxy and oil-resistant paint finishes further ensure durability. Cooling is managed through ONAN (Oil Natural Air Natural), maintaining optimal transformer temperature in ambient ranges from -20C to +50C.

FAQs of Earthing Transformers:

Q: How are earthing transformers typically used in power substations and distribution networks?

A: Earthing transformers are primarily installed to provide a neutral grounding point in three-phase systems, enabling safe dissipation of earth fault currents and protecting equipment from damage due to transient overvoltages. They are essential for maintaining system stability and personnel safety in both substations and distribution networks.

Q: What key standards and specifications do these earthing transformers comply with?

A: All our earthing transformers are manufactured according to IS 2026 and IEC 60076, adhering to stringent electrical and mechanical performance parameters. They can be supplied with insulation classes A, B, or F and are designed for impedance voltages ranging from 6% to 10% as required by system design.

Q: When should I consider specifying optional accessories such as a Buchholz relay or temperature indicator?

A: Optional accessories like Buchholz relays and temperature indicators are suggested for applications where enhanced monitoring and protection of the transformer are needed, such as critical infrastructure or installations with high operational safety requirements. These accessories provide early warning of potential internal faults and overheating, minimizing downtime.

Q: Where can these transformers be installed and what mounting types are offered?

A: Our earthing transformers are suitable for both indoor and outdoor installations, with mounting options that include floor or pad mounting. This flexibility allows integration into diverse site layouts, whether in compact substations or larger power distribution yards.

Q: What is the process for customizing an earthing transformer to specific project requirements?

A: Customization begins with a technical consultation to define electrical and mechanical parameters, including rated voltage, capacity, insulation class, bushing type, and required accessories. Our engineering team then designs and manufactures the unit in compliance with relevant standards, ensuring seamless integration into your system.

Q: How do these transformers ensure high efficiency and operational longevity?

A: High-grade copper windings, CRGO laminated cores, and optimized coil structures like toroidal or zig-zag winding contribute to efficiency up to 99%. The epoxy-coated, hermetically sealed mild steel tanks provide robust protection, while ONAN cooling maintains consistent, safe operating temperatures, prolonging service life.

Q: What are the benefits of using a hermetically sealed, epoxy-coated earthing transformer?

A: Hermetic sealing and epoxy coating protect the transformer from moisture, oil leaks, and environmental contaminants. This boosts resilience against weather and corrosive conditions, minimizes maintenance needs, and enhances overall transformer durability and reliability.

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