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Tap Changer
Suitable for
AC Locomotive with DC Propulsion
In AC Locomotive with DC Propulsion, “On Load Tap Changer” (OLTC) is the key equipment to control the tractive effort. OLTC gets connected towards 25 kV side of Traction transformer and provides Traction power in 32 steps to operate the locomotive.
Specifications
- Air Motor working pressure: 2.5–3.5 Kg/sq.cm.
- Run through time for 32 Taps: 9~13 seconds
- Rotational angle of crank shaft per tap: 180˚
- Rated Voltage: 25 kV, 50 Hz
- No. of Auxiliary Switches: 35
- Number of circuit breakers: 3
- Option of Manual Hand Drive
- Number of Taps: 32
- Rated Current: 400 Amps
- Nominal voltage of control valve: 110 V
- Driving Mechanism: Electro pneumatically operated air motor
Short Circuit Current Rating:
- Contact roller of the tap Selector: 10 kA peak
- Contact of the circuit Breaker: 7.5 kA peak
Certifications
| ISO/TS-22163(IRIS) | AS-9100 |
| ISO-9001 | ISO-14001 |
| ISO-45001 | ISO-13485 |
Compliant Standards
| IEC-60077 | IEC-60270 |