Fittings
Each
Transformer is supplied with the following standard fitting :-
Rating
Plate giving all Technical details. Two Earthing connections. Oil filling
Plug. LV Bushings. HT Bushings. Carriage with Bi- Directional wheels
for ratings 100 KVA and above. Lifting Lugs. Offload Tap changer with
handle on cover. Drain valve with conservator tank transformer. Security
Valve (with power transformer)
Routine
Tests
Following
routine tests are carried out on each transformer before leaving the
Factory.
Induced
Voltage test (Insulation test) Separate Source over Voltage test (High
Voltage test). iron Loss test (No Load Test). Copper Loss Test (Full
Load Test). Turn Ratio test. Vector Group Test.
Type
Test
Every
new Design of Transformer is Subject to the following type test :-
Short circuit
Test. Temperature Rise Test. Impulse Voltage withstand Test.
The
Design of all our Transformers in distribution and have been tested
against short circuit test at :-
N. V. KEMA
Laboratory, Netherlander. National Institute of power, Lahore. High
Voltage and short circuit Laboratory, Rabat (Islamabad).