Chambal Transformers (Sample)

Chambal · CHA-F77 series

Rating

10 MVA to 160 MVA (see variants)

Voltage ratio

400/220 kV

Cooling

ONAN/ONAF/OFAF

Vector group

YNyn0 d11

Tap changer

OLTC +/- 10% in 16 steps

Lead time 30-40 weeks · Warranty 36 months from supply · MOQ 1 nos

Chambal · CHA-358 series

Rating

50 MVA to 500 MVA (see variants)

Voltage ratio

132/33 kV

Cooling

ONAN/ONAF

Vector group

YNa0d11

Tap changer

OLTC 1.25% steps

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

Chambal · CHA-2B3 series

Rating

5 MVA to 60 MVA (see variants)

Primary voltage

132 kV

Secondary voltage

Up to 400 V DC rectified

Application

LRF

Cooling

ONAN/ONAF

Lead time 16-20 weeks · Warranty 24 months · MOQ 1 nos

Chambal · CHA-0F7 series

System voltage

11 kV to 400 kV (see variants)

Type

Current transformer

Ratio

132 kV/110 V

Accuracy class

0.5

Burden

15 VA

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

Chambal · CHA-F91 series

Rating

500 kVA to 5000 kVA (see variants)

Voltage ratio

11/0.433 kV

Technology

Cast resin

Insulation class

Class F

Cooling

AN/AF

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

Chambal · CHA-175 series

Voltage class

11 kV to 66 kV (see variants)

Component

OTI/WTI

Current rating

2000 A

Insulation type

RIP

Creepage

25 mm/kV

Lead time 12-20 weeks · Warranty 24 months · MOQ 5 nos

Chambal · CHA-A82 series

Rating

50 kVA to 1600 kVA (see variants)

Type

Station service

Primary voltage

33 kV

Secondary voltage

3.3 kV

Short-time rating

10 s

Lead time 8-10 weeks · Warranty 24 months · MOQ 1 nos

Chambal · CHA-FF7 series

Rating

5 MVA to 12.5 MVA (see variants)

Voltage ratio

33/0.8 kV

Windings

Two

Vector group

Dyn11

Cooling

ONAN

Lead time 10-14 weeks · Warranty 24 months from commissioning · MOQ 2 nos

Chambal · CHA-7B6 series

Rating

2.5 MVA to 5 MVA (see variants)

Voltage ratio

33/0.69/0.69 kV

Windings

Three (split LV)

Vector group

Dyn11

Cooling

ONAN

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

Chambal · CHA-753 series

Rating

50 MVAr to 200 MVAr (see variants)

System voltage

220 kV

Type

Shunt

Construction

Oil-immersed gapped core

Phases

Single

Lead time 40-50 weeks · Warranty 24 months from commissioning · MOQ 1 nos

Chambal · CHA-9F5 series

Gases monitored

Single gas (H2) to 9 gases (see variants)

Gases measured

H2, CO

Technology

Infrared

Measurement interval

1 hour

Accuracy

+/- 5%

Lead time 8-10 weeks · Warranty 36 months with AMC · MOQ 1 nos

Chambal · CHA-9A1 series

Transformer rating

100 kVA to 630 kVA (see variants)

Primary voltage

22 kV

Secondary voltage

0.69 kV

HV equipment

Ring main unit

Transformer type

Cast resin dry

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

Chambal · CHA-F85 series

Rating

315 kVA to 1000 kVA (see variants)

Voltage ratio

22/0.433 kV

Vector group

Dyn11

Cooling

ONAN

Energy efficiency level

Level 1

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

Chambal · CHA-342 series

Transformer rating

10 MVA to 63 MVA (see variants)

Primary voltage

66 kV

Secondary voltage

33 kV

Chassis

Container

Primary switchgear

GIS bay

Lead time 16-24 weeks · Warranty 24 months · MOQ 2 nos