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Off Circuit Tap Changer

Transformer Off Circuit Tap Changer

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Transformer Off Circuit Tap Changer Specification

IP Rating
IP54

Power Source
Manual

Thermal Conductivity
High, suitable for transformer oil applications

Response Time
Manual (instantaneous on operation)

Power Supply
Manual/Mechanical

Features
Robust construction, corrosion resistant, easy operation, high electrical insulation

Display Type
Mechanical indicator

Interface
Manual handle, mechanical linkage

Usage
For electrical transformers tap changing

Product Type
Off Circuit Tap Changer

Application
Distribution and power transformers

Rated Voltage
11 kV

Supply Voltage
Up to 11 kV

Size
Standard/Custom as per transformer design

Dimension (L*W*H)
200 x 200 x 180 mm (approx.)

Color
Grey/Red (Body/Handle)

Thickness
6 mm (average metal body thickness)

Current Rating
Up to 400 A

Capacity
Up to 3150 kVA transformers

Transformer Off Circuit Tap Changer Trade Information

Minimum Order Quantity
50 Pieces

Supply Ability
100 Pieces Per Day

Delivery Time
3 Days

About Transformer Off Circuit Tap Changer

Off Circuit Tap Changer:

We are offering finest quality Off Circuit Tap Changer which is specially designed understanding the requirements of clients. This is extensively used in many electrical industries for changing the range of voltage and currents. For higher conduction reliable quality metals are used. We ensure better better performance by letting the switches to go through quality test. At affordable prices Off Circuit Tap Changer can be availed.

Exceptional Durability and Safety

This Off Circuit Tap Changer offers a mechanical lifespan exceeding 10,000 switching operations and incorporates a locking system for operator safety. Its robust 6 mm average metal thickness provides outstanding corrosion resistance and mechanical integrity, making it ideal for harsh transformer environments. The IP54-rated enclosure ensures dust and splashing water protection, further enhancing reliability in demanding conditions.

Customizable for Diverse Transformer Applications

The tap changer accommodates both standard and custom sizes, adapting seamlessly to different transformer designs and capacitiesup to 3150 kVA and 400 A current rating. Its manual operation via a mechanical handle ensures intuitive control, while the flange/panel mounting allows for straightforward integration into transformer tanks. Grey or red body/handle color coding provides clear visual differentiation.

Certified Quality and Performance

Compliant with IS 11171 and IEC 60214 standards, this tap changer is engineered for performance and safety, supporting class A/B insulation. Designed for oil-immersed installations, its high thermal conductivity supports efficient operation in transformer oil, while the mechanical indicator and safe locking arrangement promote precise, secure tap changing.

FAQs of Transformer Off Circuit Tap Changer:

Q: How is the Transformer Off Circuit Tap Changer installed on a transformer tank?

A: The tap changer is designed for flange or panel mounting on the transformer tank, allowing for both standard and customized fitting according to transformer specifications.

Q: What is the process for selecting a different tap position?

A: Operators manually rotate the handle connected to a mechanical linkage, which instantly changes the tap position (5 to 7 as required) and displays the selected position on a mechanical indicator. A locking mechanism ensures only authorized adjustments.

Q: When should I use an off circuit tap changer instead of an on-load tap changer?

A: Off circuit tap changers should be used when the transformer can be de-energized before changing tap positions, making them suitable for situations where occasional voltage adjustment is necessary and downtime is permissible.

Q: What safety features does this tap changer offer during operation?

A: It incorporates a locking arrangement to prevent unintended manipulation, a robust 6 mm average metal body for increased safety, and operates under IP54-rated enclosure for protection from dust and water ingress.

Q: Where is this tap changer ideally used?

A: This device is best suited for distribution and power transformers up to 3150 kVA, typically found in substations, industrial, and utility power infrastructure throughout India and similar environments worldwide.

Q: How does this tap changer benefit transformer maintenance and operation?

A: It enhances operational safety and reliability through its robust build, corrosion resistance, and clear position indication. Manual/mechanical operation and oil-immersed capability ensure low maintenance and consistent performance even in challenging conditions.

Q: What standards and ratings does this tap changer comply with?

A: The product meets IS 11171 and IEC 60214 standards, supports Class A/B insulation, is suitable for oil-immersed installations, offers IP54 protection, and accommodates supply voltages up to 11 kV and currents up to 400 A.