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Purpose :
Induced Over Voltage ( DVDF ) portion is suitable to test induced over voltage of Distribution Transformers, Power Transformers, Step-up and Step-down Transformers and Motors. The Load No-Load portion for measuring load and no-load losses of Distribution Transformers, Power Transformers, Step-up and Step-down Transformers whose rated voltage is below 600 V (from point of view of distribution transformers ). For Power Transformer, one distribution transformer of 11/0.433 KV is required but will not be provided by us.

DVDF test set is very much acceptable in different transformer and motor industries and load no-load measuring facility is used only in the transformer industry.

TECHNICAL SPECIFICATION AND STANDARD ACCESSORIES
INPUT : 415 V, 3 phase , 4 wire , 50 Hz A.C.
OUTPUT : 0-1300 V with 4 different taps.
For DVDF – 0 - 1000 V at 100 Hz.
For Load No-Load – 0 - 600 V at 50 Hz.
MIN. & MAX. : DVDF - Min : 15 KVA suitable to test upto 500 KVA.
CAPACITY Max : 90 KVA suitable to test upto 10 MVA.
Load No-Load - Min : 22.5 KVA suitable to test upto 500 KVA.
Max : 500 KVA suitable to test upto 10 MVA.
DUTY (for DVDF) : Intermittent ( i.e. One minute withstand test )
COOLING : Air-Natural Cooled
UNIT : 2/3/4 units as per capacity
CAPACITY OF : Min - upto 500 KVA, 10 HP Squirrel Cage Motor
MOTOR( for DVDF) 20 HP Slip-Ring Motor
Max - upto 10 MVA, 50 HP Squirrel Cage Motor
120 HP Slip-Ring Motor