Dynamic Balancing and Electrical Testing
Precision dynamic balancing of rotors up to 3 Tonnes and a full set of electrical test instruments for motors, transformers, relays and insulating oil.
- Rotors up to 3 Tonnes
- Ø1600 × 3000 mm
- 8 test kits

- Since 1978Ranchi, Jharkhand
- 45+ yearsof experience
- 10,000+equipment repaired
- ISO 9001:2015certified
- 65,000 sq ftworks area
What we do
- Dynamic balancing of rotors and armatures up to 3 Tonnes
- Surge comparison testing of windings
- High-voltage (hipot) and insulation resistance testing
- Tan delta & capacitance, DVDF and ratio testing
- Transformer oil testing — DGA, dielectric constant, resistivity
- Relay testing up to 100 A
- Complete documentation

Facilities used
Equipment at our 65,000 sq ft works in Ranchi used for this work.
| Equipment | Capacity / make |
|---|---|
| Dynamic balancing machine | 600 / 1500 RPM · 3 Tonnes · Ø1600 mm × 3000 mm |
| Surge comparison tester | Jabbals · 10 kV |
| High voltage test kit | RE · 100 kV AC / 70 kV DC · 100 mA AC / 10 mA DC |
| Automatic tan delta & capacitance test kit | Subbal · 12 kV AC, 1 A |
| DVDF test kit | RE · 100 kVA, 200 Hz |
| DGA test kit | Dhruva · Dissolved gas analysis of transformer oil |
| Oil dielectric constant & resistivity test kit | Insulating oil testing |
| Transformer winding ratio meter | Eltel · Model TRM200 |
| Relay test set | 0–100 A |
Industries served: Power plants, steel plants, coal mines and utilities across Jharkhand and eastern India.
Questions about balancing & testing
What is the largest rotor you can balance?
Rotors up to 3 Tonnes, 1600 mm in diameter and 3000 mm long, at 600 or 1500 RPM.
Which electrical tests can you carry out?
Surge comparison (10 kV), high voltage (up to 100 kV AC / 70 kV DC), tan delta & capacitance (12 kV), DVDF (100 kVA, 200 Hz), winding ratio, DGA and oil dielectric / resistivity tests, and relay testing (0–100 A).
Do you provide test documentation?
Yes, complete documentation is provided.
Need balancing & testing work?
Send us the equipment rating, make and the fault you see — we will get back to you with a plan and a quote.