India's Leading - Dealers & Exporters for all Electrical & Electronic Items 

 

Pragati Electrical Pvt. Ltd. was established in 1975, by electrical engineers having rich experience in the field of designing and manufacturing of instruments transformers.

Pragati has successfully developed many products as per the requirements of indoor Switchgear industry and conforming to Indian and International Standards.

Pragati is one of the leading manufacturer of Epoxy Resin Cast Indoor medium voltage Instrument Transformers in India. They are manufactured in a modern factory at Navi Mumbai.

All products are type tested at recognized institutes such as CPRI/ERDA etc.

Pragati's major customers in India include Switchgear manufacturers such as Siemens, ABB, BHEL, Alstom, NGEF and power utilities such as Tata Power, CESC, BSES, BEST, etc.

 

Product Profile

  • Epoxy Resin Cast - Indoor - Current & Voltage transformers.
    Range: All types upto and including 33kV in three main types such as Wound-Primary, Bar-Primary and Window Type.
  • High Current Ring type Current Transformers
    Range: Upto 20,000A (22kV system voltage for Generator Bus-ducts)
  • High Current CTs with split core arrangement for furnace duty
    Range: Upto 60,000A
  • All types of Low Voltage Current & Voltage Transformers, Summation Current Transformers and Core Balance Current Transformers.
  • Epoxy Resin Cast Coil, Dry Type Transformers upto 22kV & 250kVA for application such as Neutral Grounding Transformer, Earthing Transformers, Control Transformers, etc.
  • DC Current & Voltage Transformers upto 50,000A and 3000 Volts.
  • Special Designs  The Company undertakes designs and development of any type of Instrument Transformers upto 36kV system voltage, tailor-made to suit the special electrical dimensional specifications required by the customer.

    Standards: IS, IEC, ANSI, BS, DIN

 

CURRENT TRANSFORMERS

POTENTIAL / VOLTAGE TRANSFORMERS

BUS-DUCT CURRENT TRANSFORMERS / RING TYPE CURRENT TRANSFORMERS

NEUTRAL GROUNDING TRANSFORMERS

 

  

CURRENT TRANSFORMERS:

Indoor type Current Transformers are available in the following variations.

1. Block-type (Post Type / Wound Primary)

2. Bar-type (Embedded bar)

3. Window type (Bus-Bar to be inserted through the window opening by the customer)

Casting is done in a single process i.e. HV and LV windings are completely encapsulated in Epoxy Resin.

 
FEATURES:
Maintenance Free
Dry Type
Can be installed in any position
Non Hygroscopic / Suitable for tropics
ROUTINE TESTS
Ration and Phase angle error tests.
Induced and applied voltage tests.
Partial discharge tests.
Tests are done as per National / International standards.

 

 

 

POTENTIAL / VOLTAGE TRANSFORMERS

Indoor type Voltage Transformers are available in the following two variations:

1.  Single pole insulated (Earthed type)

2.  Double pole insulated (Unearthed type)

 

     
 
FEATURES:
Maintenance Free
Dry Type
Non Hygroscopic / Suitable for tropics
Can be installed in any position

Casting of the core and windings assembly is done in a single process i.e. HV winding, LV winding(s) and core are completely encapsulated in epoxy resin.

Primary winding is resin impregnated prior to casting.
 
ROUTINE TESTS
Ration and Phase angle error tests.
Induced and applied voltage tests.
Partial discharge tests.
Tests are done as per National / International standards.

 

 

 

BUS-DUCT CURRENT TRANSFORMERS / RING TYPE CURRENT TRANSFORMERS

Bus Duct CTs are normally ring type Current Transformers, suitable for operation in Bus-Duct or Generator Terminal enclosures. The inside diameter of the CT depends on the size of the conductor of the customer.

 
FEATURES:
Maintenance Free
Dry Type
Non Hygroscopic / Suitable for tropics

 

ROUTINE TESTS
Ration and Phase angle error tests.
Induced and applied voltage tests.

 

 

 

NEUTRAL GROUNDING TRANSFORMERS

Indoor type Neutral Grounding Transformers.

 

 

    

Company Profile l Products l - AE (Automatic  Electric) l - Mehru l - Pragati