HERMETICALLY SEALED OIL FILLED TRANSFORMERS
Hermetically sealed oil filled Transformers are widely used these day all over the world for this compactness, excellent heat dissipating properties and longer life. Vardhaman make Hermetically Sealed Transformer is most commonly installed inside Package Sub-stations in India.
SALIENT FEATURES :
- Step up and step down transformers.
- Sealed type Bottled Top With dry air inside.
- No conservator, so expansion of oil takes place through flexible corrugated walls or compression of dry air.
- Maintenance free as oil has no contact with external air thus no contamination of oil.
- Suitable for installation inside package Sub-stations.
- Compact in size as compared to normal tank with PSR radiators.
- Excellent heat dissipation properties through corrugated fin walls.
- Can be with corrugated fins walls or press steel radiators.
- DGPT2/DMCR relay for multiple Protections is optional.
- Tailor made designs to meet customer requirement.
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Technical Data
Ratings & Voltage Class
Three Phase Form 25KVA Upto 1600KVA 33KV Class
Applicable Standards
IS: 2026, IEC: 60076, BS, SANS,ANSI Etc.
Impedance
As Per Relevant Standard Or As Per Customer Requirement
Vector Group
Dym11, Dyn5, Yzn11 Etc.
Frequency
50 Hz
Insulating Fluid
Mineral Oil Or Synthetic Ester Oil Confirming To Relevant Standards Or As Per Customer Requirement
Duty
Indoor/Outdoor
Losses
As Per Relevant Standard/Customer Requirement
Tapping
Off Circuit Tap Change R(OCTC) Or Load Tap Changer (OLTC)
Insulation Class
A
Cooling
ONAN
Winding Material
Copper(Cu)/Aluminum (Al)
Accessories and Fittings
As Per Customer Requirement