On Load Tap Changer (OLTC) Services
Our Services
On Load Tap Changer (OLTC) Services
An On Load Tap Changer (OLTC) is an essential component of power transformers, enabling the adjustment of the transformer’s output voltage under load conditions without interrupting power delivery. OLTC services typically involve maintenance, testing, and troubleshooting to ensure the reliable operation of the tap changer.
Services and repair work On OLTC Diverter at site
- ➤ Inspection and Cleaning: Checking for carbon deposits, dirt, or contamination in the tap changer compartment and cleaning the contacts.
- ➤ Contact Wear Assessment: Examining the condition of arcing and selector contacts for wear and tear.
- ➤ Replacement of Components: Replacing damaged or excessively worn contacts, springs, or seals.
- ➤ Oil Sampling and Testing: Checking oil quality for moisture, dielectric strength, and contamination.
- ➤ Oil Leak Arresting: Arresting of oil leakage from OLTC Head, Flanges, OSR relay, Pipe lines, OLTC conservator and MOG.
Oil Management
- Filtration and Reconditioning: Cleaning the tap changer oil to remove contaminants and extend its lifespan.
- Oil Replacement: Draining and refilling with fresh oil if contamination levels are high.
- Moisture Removal: Ensuring the OLTC remains free from water ingress that could lower dielectric strength.
Troubleshooting and Repairs services in Drive Mechanism
- Fault Diagnostics: Identifying and resolving issues such as mis-operation, mechanical jamming, tap counter/ Tap Indicator defects, electrical failures of contactors, Timers and Voltage monitoring relays.
- Ensuring proper operation to all limit switches.
- Supply and replacement of electric contactors, switches, relays, Heater, transduces and etc..
Importance of OLTC Services
- Maintains transformer performance and voltage regulation.
- Extends the lifespan of the transformer.
- Prevents costly downtime or failures in power distribution.
