1. Current & Potential Transformer Test Set - Manual & Automatic
2. Precision Current Transformer - 1A & 5A Secondary
3. Precision Potential Transformer - 110/√3V & 110 V Secondary
4. 0.8 PF & UPF Burden Box for CT
5. 0.8 PF & UPF Burden Box for PT
6. Current Injection Set for Testing of CT
7. Voltage Source for Testing of PT
NTPL was founded in the year 1975 by Prof. Manindra Nath Basu Ray, better known as Prof. M. N. Ray, eminent Applied Physicist, after he retired from the Department of Applied Physics, Calcutta University.
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