MagD Series

Step-Up Transformer

MagD is specially designed to cater the needs of testing of Instrument Transformers. Before new systems are put into service or after any occurrence of fault, Instrument Transformers need to be tested for their outputs. It is to be ensured that Instrument Transformers give proper outputs to protection relays.
  • Prepares excitation curves quickly and easily
  • Knee–point test of CTs
  • De-magnetise transformer cores
  • Conducts turns-ratio test of voltage transformers
  • Inbuilt voltmeter and ammeter
  • HV and LV outputs available separately
  • Online switching between HV and LV outputs
  • Visual Indicators for HV/LV output ON
  • Two-Hand operation enhances user safety
  • Interlocking feature for Variac Zero position for user safety
  • Thermal cut-off for instrument and user safety
  • Supplied with specially designed high voltage cables and rugged carrying case

TECHNICAL DATA

Full Product Specifications

Parameters MagD
Mains input supply 230 V AC ± 15%, 50 Hz ± 10%
Protection Thermal cut-off , Variac zero interlock, Two-hand control
Dimensions – 500 x 230 x 300 mm
Voltmeter 0 – 250V AC for LV out, 0 – 2.2 / 3 / 5 kV AC for HV out
LV output 0V to 250V AC, 8A; Continuous
Operating temperature 0 to 50�C
Humidity Up to 95% RH, non-condensing

Models Available

Parameters MagD 20 MagD 21 MagD 30 MagD 31 MagD 50 MagD 51
HV & LV Output HV Only Both HV Only Both HV Only Both
HV Output 0-2200V, 0.5A Continuous,

1A for 35 Sec, 10min OFF

0-3000V, 0.4A Continuous

0.8A for 35Sec,10min OFF

0-5000V, 0.3A Continuous

0.6A for 35Sec, 10min OFF

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