+91-9121685111 #5-5-35/153/3, First Floor, Prashanthi Nagar, Kukatpally, Telangana, Hyderabad – 500072
+91-9121685111 #5-5-35/153/3, First Floor, Prashanthi Nagar, Kukatpally, Telangana, Hyderabad – 500072
+91-9121685111 Plot No:5,Phase:4, Pashamylaram, Patancheru(M.D), Sangareddy (D.T), Telangana India.
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Isolation Transformer Manufacturer

Isolation Transformers

A transformer electrical isolation is required to prevent damage to either electrical circuit when any equipment connected to it.

In health care facilities isolation transformer is very important to isolate leakage of various electrical waves which are present on normal power source.Isolation transformers are used to transfer electrical power from a source of alternating current power to a device, where the powered device is isolated from the power source for safety measures.

1) Isolation transformer provides galvanic isolation which is the principle of isolating difference sections of electrical systems to prevent current flow

2) There is no direct conduction part between input and output of the isolation transformer.

3) Isolation transformer reduces the capacitance, induction, and electromagnetic waves from input to output

4) Isolation transformers block the transmission of the DC components in signals from one circuit to another circuit

5) Isolation transformers will have the ratio of 1:1 between input and output winding’s are used to protect against electrical shock between the ground and live conductors.

6) Isolation transformers also used to suppress electrical noise and these are used for supplying of clean power and protective power for sensitive equipment’s like CNC Machines, Medical devices and Laboratory instruments.

7) Isolation transformers filters the radio frequency, spikes, surges and provides dedicated neutral circuit. By using isolation transformer for any sensitive equipment, this will provides excellent protection against all sorts of electrical noises which are present on common electrical circuits on common distribution network. It enhances life of equipment, reduces malfunctions and frequent breakdowns.

Vajra Isolation Transformers are manufactured with great care by providing various shielding thus excellent protection is achieved for all sensitive and costly equipment’s which are connected on vajra isolation transformers.

Technical Specifications
Salient Features
Most Suitable For
system connections delta star
Input voltage 415v 3 phase
output voltage 415-200v 3 phase
ratios 1-1 and 2-1
regulation better than 3.5%
power factor 0.75 lead t0 0.75lag di-electric
strength 3kv for 60 sec insulation resistance – better than 1000 mega ohms
coupling capacitance 0.1 pf for 80 db
leakage current less than 20 micro amps
comman mode attenuation 80 db to 100 db
contruction standards as per is 2026 part I & II, is 1171
type of execution closed to 0
operating temparature 0 to 45 c
Type of cooling natural air forced , air cooled
eliminates stresses that come from normal electrical transients
reduces the effects of power line problems line noise, spikes, surges, transients and nuetral minimum


Input Output Rating Available
415 V AC 3 Ph
415 V AC 3 Ph
415 V AC 3 Ph
220 V AC 3 Ph
3 KVA 3 Ph and
upto1500 KVA 3Ph
230 V AC 1 Ph
230 V AC 1 Ph
230 V AC 1 Ph
110 V AC 1 Ph
1 KVA 1 Ph and
upto 50 KVA 1 Ph

1. Eliminates stresses that come from normal electrical transients

2. Meet stringent clean power requirements of the sophisticated / sensitive equipments

3. Reduces the effects of power line problems like Noise, Spikes, Surges, Transients and Neutral to minimum

  • cnc machines
  • bio medical equipmemts
  • printing machiniers
  • cell phone networks
  • scientiic equipments
  • textile machineries
  • oil & vanaspathi plants
  • large computer installations
  • Garment equipment

Why Us?

We are one of the major transformer manufacturers in Hyderabad with extensive experience in the electrical industry. Our products are uniquely designed with the latest and advanced technologies and certified from various national standards along with the proven and greater safety measures.

Key Features

High-end model transformers that perform efficiently.

Experts in providing the robust and long-lasting transformers.

Top priority in offering cost-effective electrical solutions.

Follow the best global quality standards and manufacturing techniques.

Our Team

The team at Vajra Transpower is highly passionate and enthusiastic to fulfill the needs of the customers. Our team uses modern transformer manufacturing techniques and sophisticated computer-controlled test systems to meet stringent customer demands. Our mentor was Dr. A. Venkateshwara Rao, has more than 36 years of experience in relevant field.