Voltage Transformer (VT/PT) Testing
Voltage Transformers (VTs), also known as Potential Transformers (PTs), are vital for scaling down high voltages to measurable levels for metering and protective relaying. At SLPL, our VT/PT testing ensures precise performance, stability, and safety across power systems of all scales.
What is VT/PT Testing?
VTs are instrumental in supplying accurate voltage references to meters and relays. Errors or aging in VTs can cause inaccurate measurements, faulty protection responses, and system instability. VT testing helps detect such deviations early to maintain reliability and operational efficiency.
We offer testing solutions for:
Single-phase and three-phase VTs
Indoor and outdoor types
Station service and metering class VTs
HV/EHV substations and industrial installations
Tests Conducted on VTs
- Insulation Resistance Test
- Turns Ratio Test
- Polarity Test
- Secondary Winding Resistance Test
- Accuracy Class Verification
- Capacitance & Dissipation Factor (Tan Delta) Test
Why Choose SLPL for VT Testing?
🧠 Highly Trained Experts
Technicians with specific expertise in VT/PT characteristics and grid protection.
📟 Advanced Diagnostic Equipment
Utilization of state-of-the-art test kits like Omicron VOTANO and CPC analyzer.
🏗️ End-to-End Testing Solutions
From standalone VT tests to integrated switchyard assessments.
📋 Standardized Reports
Clear, audit-ready documentation with graphical data and actionable insights.
📅 Flexible Scheduling & Fast Turnaround
Testing support during shutdowns, commissioning, or preventive maintenance.