Transformers & substations

Coromandel · COR-BD3 series

System voltage

11 kV to 220 kV (see variants)

Type

Voltage transformer

Ratio

100-200/1 A

Accuracy class

1.0

Burden

15 VA

Lead time 10-14 weeks · Warranty 18 months · MOQ 5 nos

Narmadapushpak · NAR-571 series

Transformer rating

250 kVA to 1000 kVA (see variants)

Primary voltage

11 kV

Secondary voltage

0.69 kV

HV equipment

VCB panel

Transformer type

Oil-immersed

Lead time 6-8 weeks · Warranty 18 months · MOQ 1 nos

Tejmark · TEJ-759 series

Rating

25 MVAr to 125 MVAr (see variants)

System voltage

400 kV

Type

Shunt

Construction

Air-core dry

Phases

Single

Lead time 20-28 weeks · Warranty 24 months from commissioning · MOQ 10 nos

Hampiohm · HAM-5B1 series

Rating

200 kVA to 2500 kVA (see variants)

Voltage ratio

33/0.433 kV

Vector group

Dyn11

Cooling

ONAN

Energy efficiency level

Level 2

Lead time 4-6 weeks · Warranty 18 months from supply · MOQ 1 nos

Brahmaputra · BRA-F73 series

Rating

20 MVA to 160 MVA (see variants)

Voltage ratio

220/132 kV

Cooling

ONAN/ONAF

Vector group

YNyn0 d11

Tap changer

OLTC +/- 10% in 16 steps

Lead time 16-24 weeks · Warranty 36 months from supply · MOQ 5 nos

Hampiohm · HAM-208 series

Rating

3.15 MVA to 6.3 MVA (see variants)

Voltage ratio

22/0.69 kV

Windings

Two

Vector group

Dy11y11

Cooling

ONAN

Lead time 6-8 weeks · Warranty 24 months from commissioning · MOQ 10 nos

Madurai · MAD-342 series

Transformer rating

5 MVA to 63 MVA (see variants)

Primary voltage

66 kV

Secondary voltage

11 kV

Chassis

Skid

Primary switchgear

AIS disconnector and breaker

Lead time 30-40 weeks · Warranty 24 months · MOQ 5 nos

Kaverianant · KAV-F86 series

Rating

200 kVA to 500 kVA (see variants)

Voltage ratio

33/0.433 kV

Vector group

Dyn11

Cooling

ONAN

Energy efficiency level

Amorphous

Lead time 2-3 weeks · Warranty 12 months from commissioning · MOQ 1 nos

Nilgirispark · NIL-343 series

Transformer rating

10 MVA to 31.5 MVA (see variants)

Primary voltage

66 kV

Secondary voltage

33 kV

Chassis

Low-bed trailer

Primary switchgear

AIS disconnector and breaker

Lead time 16-24 weeks · Warranty 36 months · MOQ 5 nos

Kakatiya · KAK-F79 series

Rating

31.5 MVA to 500 MVA (see variants)

Voltage ratio

220/132 kV

Cooling

ONAN/ONAF

Vector group

YNyn0 d11

Tap changer

OLTC 1.25% steps

Lead time 16-24 weeks · Warranty 24 months from commissioning · MOQ 5 nos

Narmadapushpak · NAR-5D4 series

Rating

5 MVAr to 50 MVAr (see variants)

System voltage

400 kV

Type

Neutral

Construction

Air-core dry

Phases

Single

Lead time 40-50 weeks · Warranty 36 months from supply · MOQ 10 nos

Brahmaputra · BRA-C11 series

Rating

200 kVA to 1000 kVA (see variants)

Voltage ratio

11/0.433 kV

Vector group

Dyn11

Cooling

ONAN

Energy efficiency level

Level 2

Lead time 4-6 weeks · Warranty 18 months from supply · MOQ 1 nos

Ellora · ELL-F81 series

Rating

25 kVA to 315 kVA (see variants)

Voltage ratio

11/0.433 kV

Vector group

Dyn11

Cooling

ONAN

Energy efficiency level

Amorphous

Lead time 2-3 weeks · Warranty 12 months from commissioning · MOQ 1 nos

Sabarmati · SAB-C47 series

System voltage

132 kV to 400 kV (see variants)

Type

CVT

Ratio

1200-2400/1 A

Accuracy class

0.5

Burden

15 VA

Lead time 10-14 weeks · Warranty 24 months from commissioning · MOQ 1 nos

Hampiohm · HAM-ED3 series

Rating

250 kVA to 1000 kVA (see variants)

Voltage ratio

11/0.433 kV

Technology

VPI

Insulation class

Class F

Cooling

AN/AF

Lead time 4-6 weeks · Warranty 36 months · MOQ 1 nos

Bundel · BUN-281 series

Voltage class

11 kV to 400 kV (see variants)

Component

OTI/WTI

Current rating

1250 A

Insulation type

RIS

Creepage

31 mm/kV

Lead time 12-20 weeks · Warranty 24 months · MOQ 10 nos

Madurai · MAD-C06 series

Rating

315 kVA to 1600 kVA (see variants)

Type

Earthing (zig-zag)

Primary voltage

132 kV

Secondary voltage

3.3 kV

Short-time rating

10 s

Lead time 8-10 weeks · Warranty 24 months · MOQ 2 nos

Nilgirispark · NIL-119 series

Transformer rating

250 kVA to 1600 kVA (see variants)

Primary voltage

33 kV

Secondary voltage

0.433 kV

HV equipment

Fuse switch

Transformer type

Cast resin dry

Lead time 10-14 weeks · Warranty 24 months · MOQ 1 nos

Kaverianant · KAV-646 series

Rating

2 MVA to 60 MVA (see variants)

Primary voltage

33 kV

Secondary voltage

Up to 1000 V

Application

LRF

Cooling

OFWF

Lead time 16-20 weeks · Warranty 36 months from supply · MOQ 10 nos

Tejmark · TEJ-984 series

System voltage

11 kV to 400 kV (see variants)

Type

Combined CT-PT

Ratio

100-200/1 A

Accuracy class

PS

Burden

15 VA

Lead time 4-6 weeks · Warranty 24 months from commissioning · MOQ 1 nos

Samarthtek · SAM-1D5 series

Rating

50 MVA to 160 MVA (see variants)

Voltage ratio

132/33 kV

Cooling

ONAN/ONAF/OFAF

Vector group

Dyn11

Tap changer

OLTC 1.25% steps

Lead time 30-40 weeks · Warranty 24 months from commissioning · MOQ 1 nos

Taxilaurja · TAX-C03 series

Rating

100 kVA to 3150 kVA (see variants)

Type

Station service

Primary voltage

33 kV

Secondary voltage

0.433 kV

Short-time rating

10 s

Lead time 8-10 weeks · Warranty 18 months · MOQ 1 nos

Ajantajyoti · AJA-F74 series

Rating

20 MVA to 100 MVA (see variants)

Voltage ratio

220/132 kV

Cooling

ONAN/ONAF

Vector group

YNyn0 d11

Tap changer

OLTC +/- 10% in 16 steps

Lead time 30-40 weeks · Warranty 36 months from supply · MOQ 10 nos

Brahmaputra · BRA-F57 series

Rating

3.15 MVA to 6.3 MVA (see variants)

Voltage ratio

33/0.69/0.69 kV

Windings

Two

Vector group

Dyn11

Cooling

ONAN

Lead time 10-14 weeks · Warranty 24 months from commissioning · MOQ 1 nos