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|what is transformer
|What is the difference between neutral and ground?
|What is the difference between UPS and SMPS?
|MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL
PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT
TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED.
NORMAL KVA--150 KVA
PRIMARY VOLTAGE --34.5 KV
SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA
CONNECTION--D/d (EXTERNAL CLOSED)
CONSTANT RATEING FROM--1.290-908V
CONSTANT CURRENT FROM--908-690
VECTOR GROUP--D III
|how to calculate the size of cable for 100 kva load,?can
somebody tell me with a formula
|why corona loss is less with negative polarity?
|why neutral is neccessary?
|how to set the transformer differential relay
|IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL
EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE
EQUIPMENTS IF EARTH GETS OPEN ON LOAD?
|how to calculate sizing of NGTR (Transformer rating,Loading
resistor value and Current rating of resistor) and what is
the X/R ratio.
Details : 11kV,Capacitance 1.73532 micro farads,40kA for
|What is meant by directional power and reverse power relay ?
|What is advantages of ungrounded neutral?
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