MagD Series

Step-Up Transformer

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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.

Key Features & Capabilities

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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