This set up is designed to study the working /Protection principle of Digital Negative sequence current relay (C&S Make) .It consists of

(1). 3Ø –Negative Sequence Current Relay –C&S Make & (2).Panel meter with test set up

  • One number of Digital Relay (Numerical type)
  • Function : Negative sequence Over Current &  3 elements over current +single element EF
  • CT Input  : 1A or 5A
  • Current Setting : up to 120% & Time Setting :  available
  • Function : IDMT
Panel with Meter & Load
  • Three number of  Digital Ac ammeter (0-5A)is provided to indicate 3 phase supply current
  • One number of 3 phase Lamp load-5A with different load selector switch is provided
  • 3 number of 5/1 CT is provided
  • Necessary MCB , Indicator, CT Input terminals are terminated in front panel
  • Provision to simulate phase reversal
  • One number of Automatic trip time measurement circuit (ATTM Circuit) is provided
  • All are mounted on a nice cabinet with diagram stickered on front panel & 230VAC@50Hz AC Input with power ON/OFF Switch
Autotransformer with Load set up
  • Three number of  Single phase Transformer (6A per phase) is provided to simulate unbalance & balance 3 phase ac source
  • One number of 3 phase Lamp load-5A with different load selector switch is provided- facility to simulate balanced & unbalanced load
  • All are mounted on nice powder coated cabinet with required input , output terminals & indicators etc
  • For More details /Purchase – contact us

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