Instrument Transformer Calibration
All types of instrument transformers — single-phase PT from 6.6 kV to 132 kV, CT from 5A to 2000A, and complete metering cubicle sets. Performed at our Vijayawada lab or at your site.
Single Phase Potential Transformers (PT)
PT — 6.6 kV to 132 kV
Oil cooled, resin cast and air cooled PTs across all standard voltage classes
PT Class 0.2
Revenue-grade accuracy for high-precision metering applications
PT Class 0.5
Standard accuracy for most HT metering and protection applications
PT Class 1
General purpose metering accuracy class
Single Phase Current Transformers (CT)
CT — 5A to 2000A
Oil cooled, resin cast and air cooled CTs for all rated current ranges
CT Class 0.2s / 0.5s
Revenue-grade metering CTs for Open Access and ABT applications
CT Class 0.2 / 0.5
Standard metering CTs for HT consumer installations
CT Class 1
General metering and protection combined CTs
Metering Cubicle Sets
Combined CT PT (Metering Cubicle)
Complete metering cubicle set calibration — CT, PT and wiring verification
Indoor Metering Cubicle
Indoor type combined CT PT assemblies for consumer HT substations
Service Details
- PT Range: 6.6 kV to 132 kV
- CT Range: 5A to 2000A
- Location: Permanent Lab & On-site
- Standard: IS 16227
Our Work
Lab equipment and on-site project photos
33 kV PT
33 kV CT
33 kV Resin Cast CT
132 kV CT
132 kV PT
Combined CT-PT
CT Calibration in Progress
AIITS Plus Test Set
CT Test Results
Lab Setup
CT/PT Calibration
CT Calibration
PT Calibration
LT CT Calibration
On-site Testing
33 kV PT
33 kV CT
33 kV Resin Cast CT
132 kV CT
132 kV PT
Combined CT-PT
CT Calibration in Progress
AIITS Plus Test Set
CT Test Results
Lab Setup
CT/PT Calibration
CT Calibration
PT Calibration
LT CT Calibration
On-site Testing