OLTC (On-Load Tap Changer) Services
Precision-Controlled Voltage Regulation for Industrial Power Systems
On-Load Tap Changers (OLTC) are essential for stable voltage regulation in industrial power systems. ABI Engineering Services brings in handling OLTC units across all major makes and models, delivering precision servicing, installation, and refurbishment for industries that demand consistent performance and zero downtime.
We ensure your transformer operates safely, efficiently, and smoothly, even under fluctuating load conditions.
⭐ Our OLTC Service Capabilities
1. OLTC Sales (All Capacities)
We supply high-quality OLTC units suitable for various transformer ratings:
New OLTCs from trusted OEMs
Replacements for aged or failed units
Compatible with distribution & power transformers
Long mechanical life with high switching reliability
Every OLTC is tested before delivery for assured performance.
2. OLTC Servicing & Overhauling
End-to-end maintenance for smooth tap-changing operations:
Diverter switch cleaning
Contact replacement
Selector mechanism inspection
Lubrication & alignment
Motor drive servicing
Seal & gasket replacement
We restore old OLTC units to near-new condition.
3. OLTC Fitting & Integration
Precise installation for trouble-free functioning:
Mounting & coupling
Electrical interconnections
Drive mechanism alignment
Tap sequencing checks
Functional and timing tests
Our technicians ensure perfect synchronization with the transformer.
4. OLTC Oil Filtration (Diverter Oil)
Oil purity is critical for OLTC life. We perform:
Moisture removal
Gas removal
BDV improvement
Filtration & dehydration
Diverter compartment cleaning
Healthy oil prevents arcing, carbon buildup, and contact wear.
5. OLTC Spares Supply
We provide genuine spares for all leading OLTC types:
- Diverter & selector contacts
- Motor drive units
- Gear mechanisms
- Gaskets & O-rings
- Contact kits
- Seals & insulation components
- RTCC components
All spares meet OEM-grade quality.
6. OLTC Refurbishment
Complete rebuild solutions for malfunctioning or old units:
Mechanical overhauling
Drive mechanism recalibration
Full cleaning & reconditioning
Replacement of worn parts
Housing repairs
Refurbishment extends OLTC life significantly.
7. RTCC Panel Integration
We supply and integrate Remote Tap Changer Control Panels:
- Auto/Manual modes
- Voltage monitoring
- Remote tap command
- Smooth tap sequencing
- Industrial protection features
Ensures total OLTC automation and stable regulation.
8. OLTC Troubleshooting & AMC
We provide rapid response for issues such as:
- Tap change failures
- Motor drive faults
- Contact wear
- Diverter issues
- Overheating
- Noise/vibration problems
Annual Maintenance Contracts ensure long-term reliability and safety.
Industries We Serve
OLTC (On-Load Tap Changer) Services
Precision-Controlled Voltage Regulation for Industrial Power Systems
On-Load Tap Changers (OLTC) are essential for stable voltage regulation in industrial power systems. ABI Engineering Services brings in handling OLTC units across all major makes and models, delivering precision servicing, installation, and refurbishment for industries that demand consistent performance and zero downtime.
We ensure your transformer operates safely, efficiently, and smoothly, even under fluctuating load conditions.
⭐ Our OLTC Service Capabilities
1. OLTC Sales (All Capacities)
We supply high-quality OLTC units suitable for various transformer ratings:
New OLTCs from trusted OEMs
Replacements for aged or failed units
Compatible with distribution & power transformers
Long mechanical life with high switching reliability
Every OLTC is tested before delivery for assured performance.
2. OLTC Servicing & Overhauling
End-to-end maintenance for smooth tap-changing operations:
Diverter switch cleaning
Contact replacement
Selector mechanism inspection
Lubrication & alignment
Motor drive servicing
Seal & gasket replacement
We restore old OLTC units to near-new condition.
3. OLTC Fitting & Integration
Precise installation for trouble-free functioning:
Mounting & coupling
Electrical interconnections
Drive mechanism alignment
Tap sequencing checks
Functional and timing tests
Our technicians ensure perfect synchronization with the transformer.
4. OLTC Oil Filtration (Diverter Oil)
Oil purity is critical for OLTC life. We perform:
Moisture removal
Gas removal
BDV improvement
Filtration & dehydration
Diverter compartment cleaning
Healthy oil prevents arcing, carbon buildup, and contact wear.
5. OLTC Spares Supply
We provide genuine spares for all leading OLTC types:
- Diverter & selector contacts
- Motor drive units
- Gear mechanisms
- Gaskets & O-rings
- Contact kits
- Seals & insulation components
- RTCC components
All spares meet OEM-grade quality.
6. OLTC Refurbishment
Complete rebuild solutions for malfunctioning or old units:
Mechanical overhauling
Drive mechanism recalibration
Full cleaning & reconditioning
Replacement of worn parts
Housing repairs
Refurbishment extends OLTC life significantly.
7. RTCC Panel Integration
We supply and integrate Remote Tap Changer Control Panels:
- Auto/Manual modes
- Voltage monitoring
- Remote tap command
- Smooth tap sequencing
- Industrial protection features
Ensures total OLTC automation and stable regulation.
8. OLTC Troubleshooting & AMC
We provide rapid response for issues such as:
- Tap change failures
- Motor drive faults
- Contact wear
- Diverter issues
- Overheating
- Noise/vibration problems
Annual Maintenance Contracts ensure long-term reliability and safety.