Dry type transformers are those transformers that use air as cooling and dielectric medium instead of conventional technology of transformers which uses mineral oil as a cooling and dielectric medium.
Cast Resin Dry Type Distribution Transformer
The coils of Cast Resin Transformers are casted in epoxy under vacuum in a mould to form a void free rigid casting over the coil. These transformers are used in installation like steel and cement plants as well as crowded and urban areas, within the premises of a residential and commercial building.
We at Shri Ram Group Of Industries have a modernised Casting plant to manufacture Cast Resin transformers upto 3 mVA 33kV Class.
TECHNICAL SPECIFICATIONS |
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| Rating | Upto 3Mva | |
| Duty Type | Outdoor/Indoor, Ground Mounted Type& Pole Mounted Type | |
| Voltage Class | Upto 33Kv | |
| No Of Phases | 3 phase | |
| Frequency | 50/60 Hz | |
| Vector Group | Dyn1 or Dyn5 or Drn11 or any specific | |
| Class Of Insulation | F , H Or C class as required | |
| Temperature Rise | 90.C to 115.C above ambient temperature of 50.C by resistance method or as per customer’s requirement | |
| Tap Changer | Off Circuit or On Load | |
| Tapping Range | +-2.5% X 2 for OCTC or +-2.5% X 2 & -2.5% X6 for OLTC as per customer requirement | |
| Winding Material | Aluminum Or Copper with multi paper NOMEX covering | |
| Applicable Standards | IS 11171,IEC 60726 | |
| EnclosurePainting | Powder Coated with RAL 7032 Shade or as per customer requirement | |
SALIENT FEATURES OF SRI ® MAKE POWER TRANSFORMERS |
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 Pioneer and one of the biggest vendor in India
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Nomex© engineered Dry Type Transformer
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Premium Quality Epoxy resin used along with precision casting under controlled environment
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Non Flammable, Fire Resistant, Maintenance Free, Repairable at site
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Ducts between coils and discs to maximize air flow and reduce hot spot temperature
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Custom made to meet each and every requirement of customers conforming to National & International Standards
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Designed by experienced expert engineers using most modern software
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Average Delivery Time: 30-45 Days
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Facility to make 100Nos Transformers per month
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STANDARD FITTINGS |
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| H.V. Cable Box |
L.V Cable Box with Bus bar or Bus duct |
Off Circuit Tap Links |
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| Under carriage with four bi-directional Rollers |
Earthing terminals |
Rating diagram plate |
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| Lifting lugs for complete Transformer |
Enclosure with Louver panels |
Canopy |
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| Base Channel-2 Nos. |
Separate Neutral bushing on LV side |
Paint: Powder Coated with RAL 7032 Shade |
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OPTIONAL FITTINGS |
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| RTD with A/T contact |
Marshalling box with control wiring |
On Load Tap Changer with RTCC Panel with AVR |
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| Forced cooling arrangement |
Neutral Current Transformer |
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