NGEF / Products / Transformers


NGEF (HUBLI) LTD., has been making significant contribution since 3 decades for the industrial and economic development of the country by supplying Transformers of high quality and reliability as per national and international standards. Our Transformers are in various industrial application operating across the country and abroad.

Power Transformers

Distribution & Power Transformer

NGEF has the capacity of manufacturing distribution & power transformer with its unique technology, ranging from 63 KVA to 60 MVA. Transformers are manufactured by using hybrid insulation material, some of which are non-hygroscopic with no fear of moisture attack. The insulation filled is regular mineral oil OR Natural Ester Oil which is fire safe liquid and falls under K class category with fire point app 350 degree C.

The K class Natural Ester oil is bio-degradable and offers excellent fire safety.

The transformers are equipped with special kind of "Sealed Breathing System" and
"Oil-purifier" which allow transformers to operate for 20 years without carrying out routine oil filtration.

NGEF also manufactures dry type transformers up-to 1250 KVA 11 KV class and CSS also.

Technical specification
Ratings:- Upto 63 KVA to 60 MVA
Voltage:- Class 11 KV /33 KV /66 KV /132 KV
Standards:- IS – 1180, 2026-14, IEC – 60076
Cooling:- ONAN / ONAF / OFAF/ ONOF / ONWF
Type:- Indoor / Outdoor
Vector Group:- Dyn11, Dyn5, Dyn1, YNyn0, YNd11, YNd1, Dyn11d0,
                              zig-zag Grounding transformers or as desired
Material:- Copper / Aluminum
Tapping:- OCTC, OLTC
Frequency:- 50 Hz
Expected life:- 50* years if operated as per NGEF guidelines 


Fittings & Features:
Oil Level Gauge, Marking Plate, Silica Gel Breather, Drain Valve, Thermometer Pocket, Oil Filling Hole, Lifting Lugs, Explosion Vent / Pressure relief Valve, Conservator, Rollers, Jacking Screws, OTI , WTI , Marshalling Box, Buchholz Relay, MOG, Inspection Cover, Seal Breathing System, Online Oil Purifier, Online Moisture Meter.

Mobirise

Dry Type Transformer

NGEF has the capacity of manufacturing power transformer with unique technology. Transformers are manufactured by using non-hygroscopic material and no fear of moisture exists. The insulation filled is not regular mineral oil ( which is inflammable) but a fire safe K class liquid having fire point > 350 degree C.
The K class Natural Ester oil is bio-degradable and offers excellent fire safety.
The transformers are equipped with special kind of "Sealed Breathing System" and "Oil-purifier". 


Technical specification 
Ratings:- Upto 1250 KVA
Voltage:- class 11 KV /3.3 KV /6.6 KV 
Standards:- IS – 11171, IEC – 60726
Cooling:- AFA 
Type:- Indoor / Outdoor
Vector Group:- Dyn11, Dyn5, Dyn1 
Material:- Copper / Aluminum
Tapping:- OCTC, OLTC
Frequency:- 50 Hz 


Fittings & Features:
In addition to standard features, oil pump and heat exchanger standard or double jacket is provided.

Mobirise

Arc Furnace Transformer

NGEF has the capacity of manufacturing power transformer with unique technology. Transformers are manufactured by using non-hygroscopic material and no fear of moisture exists. The insulation filled is not regular mineral oil ( which is inflammable) but a fire safe K class liquid having fire point > 350 degree C.
The K class Natural Ester oil is bio-degradable and offers excellent fire safety.
The transformers are equipped with special kind of "Sealed Breathing System" and "Oil-purifier". 

Technical specification 
Ratings:- Upto 10 MVA
Voltage:- class 11 KV /33 KV /variable secondary
Standards:- IS – 11171, IEC – 60726
Cooling:- ONOF / ONWF
Type:- Indoor / Outdoor
Vector Group:- As desired
Material:- Copper
Tapping:- OCTC, OLTC
Frequency:- 50 Hz 


Fittings & Features:
In addition to standard features, oil pump and heat exchanger standard or double jacket is provided.

Few of Our Esteemed Clients

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Use of them does not imply any affiliation with or endorsement by them.

NGEF
Head Office

P.B Road, Rayapur,
Dharwad‐ 580 009, Karnataka.
Telephone: 0836‐2322656 

Transformer Enquiry

Mr. Veeresh M – General Manger
Email:      veeresh@ngef.in
Mobile:  +91.9540069162