In House Services
Vacuum Pressure Impregnation
- 3 VPI chambers
- Biggest chamber: 5M x 12M
- Designed for GVPI of machines up to 250 MW
- Bars individually vacuum pressure impregnated
- Separate cold storage room for resin
Dynamic Balancing
- In 2009, Coral invested INR 40 million on an ABRO-made dynamic balancing machine.
- Coral is the only private company in India with a balancing machine capable of handling rotors up to 30 Tonnes at 3600 RPM + 10% over speed and 70 Tonnes at 500 RPM.
Type of motors and generators service provided in house:
SLIPRING INDUCTION MOTORS
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
11.6 MW to 0.18 MW |
2 to 10 |
11 KV to 3.3 KV |
Above 600 |
|
1.6 MW to 0.1 MW |
2 to 10 |
11 KV to 3.3 KV |
Above 1000 |
DC MOTORS
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
5.3 MW to 0.1 MW |
4 to 20 |
1000 V to 415 V |
above 500 |
ENGINE DRIVE ALTERNATORS
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
20 MVA to 6 MVA |
6 to 10 |
11 KV to 3.3 KV |
12 |
|
3 MVA to 0.25 MVA |
4 to 6/td> |
690 V to 415 V |
Above 325 |
SQUIRRELCAGE INDUCTION MOTORS
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
10 MW to 0.2 MW |
2 to 10 |
11 KV to 3.3 KV |
Above 220 |
|
1.6 MVA to 0.1 MVA |
2 to 10 |
690 V to 415 V |
Above 1000 |
Synchronous Motors
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
18.75 MVA to 0.1 MVA |
– |
11 KV to 415 KV |
Above 350 |
WIND ELECTRIC GENERATORS
|
Capacity |
No. of Poles |
Voltage |
Qty. in Nos. |
|
3.125 MVA to 0.25 MVA |
4 to 8 |
690 V to 415 V |
Above 500 |