Transformer spares & accessories
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A comprehensive range of transformer accessories including relays, bushings, valves, instrumentation, and insulation materials — standard, replacement and customised, for any make.
Relays & Gauges
5 products-
Buchholz Relays (GOR)
Gas Operated Relays for transformer protection with alarm and trip contacts.
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Oil Surge Relays
Rapid fault detection relays for transformer tap changer protection.
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Magnetic Oil Level Gauges
MOG for conventional and air-cell type conservators with alarm contacts.
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Prismatic Oil Level Gauges
Visual oil level indicators for transformer conservator tanks.
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Oil Flow Indicators
Flow indicators for forced-oil cooled transformers with alarm contacts.
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Protection Devices
4 products-
Pressure Release Valves (PRV/PRD)
Safety devices for over-pressure protection in oil-filled transformers.
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Silicagel Breathers
Blue and Orange variant silicagel breathers for moisture removal from transformer oil.
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Air Cells / Atmo-Seals
Conservator air cell/atmo-seal systems preventing oil-air contact and moisture ingress.
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Explosion Vents
Explosion vents for pressure relief on transformer tanks.
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Bushings & Insulators
4 products-
Porcelain Insulators
High-quality insulators conforming to IS-3347 & IS-8603 standards.
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Epoxy Casted Bushings
Durable epoxy cast bushings for medium voltage applications.
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HV Condenser Bushings
High-voltage condenser bushings rated up to 245 KV for power transformers.
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Post & Pin Insulators
Post and pin type insulators for transformer and substation applications.
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Valves
3 products-
Radiator Valves
Square and round type radiator valves for transformer cooling systems.
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Header & Gun Metal Valves
Header valves and gun metal valves for diverse transformer applications.
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Instrumentation
3 products-
Oil Temperature Indicators (OTI)
Precision OTI with 4-20mA output for transformer oil temperature monitoring.
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Winding Temperature Indicators (WTI)
WTI with 4-20mA output for accurate winding temperature measurement.
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Tap Position Indicators (TPI)
Reliable tap position indicators for on-load and off-load tap changers.
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Panels & Switchgear
8 products-
Marshalling Boxes
Electrical marshalling boxes for transformer terminal and cable connections.
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RTCC Panels
Remote Tap Changer Control panels for automated tap changer operations.
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Cooler Control Panels
Control panels for transformer cooling fan and pump management.
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CT / PT
Current Transformers (up to 132 KV) and Potential Transformers (up to 400 KV) for metering and protection.
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OLTC & Spare Parts
On-load tap changers and spare parts for various makes.
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Off-Circuit Tap Switches
Off-circuit tap switches for distribution and power transformers.
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NGR & Capacitor Banks
Neutral grounding resistors and capacitor banks.
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Circuit Breaker Spare Parts
Spare parts for VCB, SF6 and other circuit breakers.
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Other Accessories
10 products-
Transformer Radiators
SS and CRCA type transformer radiators for efficient heat dissipation.
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Cooling Fans & Oil Pumps
Industrial cooling fans and oil circulation pumps for transformer cooling systems.
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Gaskets
Neoprene, Nitrile, and NBR gaskets for leak-proof transformer sealing.
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Insulation Materials
High-quality electrical insulation materials for transformer manufacturing and maintenance.
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Transformer Oil (IS-335)
New transformer oil conforming to IS-335.
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Conservator Tanks
Conservator tanks for conventional and air-cell type arrangements.
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Copper Jumpers & Busbars
Copper jumpers and busbars for transformer and panel connections.
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Winding Conductors
Various types of winding conductors for transformer repair and rewinding.
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Cable Boxes & Bus Ducts
Cable boxes and bus ducts for transformer terminations.
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Customised Components
Components built to existing dimensions and specifications, including obsolete designs.
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Photo credits
Some product and header photos are illustrative and sourced from Wikimedia Commons under the licences shown.
- Cast Iron Butterfly Valves: Butterfly-valve--The-Alloy-Valve-Stockist.JPG by Heather Smith, CC BY 3.0
- Circuit Breaker Spare Parts: Substation Circuit Breaker 1.jpg by Yoshieslunchbox, CC BY-SA 4.0
- Cooler Control Panels: Electrical Control Panel Made By True Logic Group Inc.jpg by Jbarnard33, CC BY 4.0
- Copper Jumpers & Busbars: 2500A copper busbars in motor control panel.jpg by ToT89, CC BY-SA 4.0
- Gaskets: Rubber gaskets 02.jpg by Vis M, CC BY-SA 4.0
- HV Condenser Bushings: Bundesarchiv Bild 102-11603, Prüf-Transformator der AEG.jpg by UnknownUnknown, CC BY-SA 3.0 de
- Marshalling Boxes: Pont-l'Abbé high-voltage substation 01 - Circuit breaker cabinet.jpg by PtiBzh, CC0
- NGR & Capacitor Banks: Condensor bank 150kV - 75MVAR.jpg by Philippe Mertens, Public domain
- Off-Circuit Tap Switches: CD242tapchanger2011a.jpg by PetrS., CC BY-SA 3.0
- OLTC & Spare Parts: DMM 72243 Stufenschalter für Leistungstransformator.jpg by Unknown author, CC BY 3.0
- Post & Pin Insulators: High-voltage circuit-breaker, white insulators.jpg by Angie from Sawara, Chiba-ken, Japan, CC BY 2.0
- RTCC Panels: Porto Museu STCP Control Panel.JPG by TeWeBs, CC BY-SA 4.0
- Tap Position Indicators (TPI): Motoraandrijving MR.jpg by Fluppe37 at Dutch Wikipedia, CC BY-SA 3.0
- Transformer Oil (IS-335): TRANSFORMER OIL FILTER MACHINE.jpg by Arghyakamal.ray, CC BY-SA 4.0
- Winding Conductors: Continuously Transposed Conductor Cu (Copper CTC) 2.jpg by Fluppe37, CC BY 4.0
- Header photo 1: Substation Power Transformer 1.jpg by Yoshieslunchbox, CC BY-SA 4.0
- Header photo 2: Substation Circuit Breaker 1.jpg by Yoshieslunchbox, CC BY-SA 4.0
- Header photo 3: High-voltage circuit-breaker, white insulators.jpg by Angie from Sawara, Chiba-ken, Japan, CC BY 2.0
- Header photo 4: High-voltage in Iraq.jpg by Marvin L. Daniels, U.S. Army, Public domain
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