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DSR series Motor Protection Relays with Delta/Star converter for Energy Saving

These relays are equipped with Micro-computer & Smart logic current sensing algorithm for precise motor protection as well as energy saving on partial loading by automatic change over from Delta to Star & Star to Delta.

Various models of DSR series Motor Protection Relay have been designed to provide reliable & efficient solution that can prevent failure of electrical motor in industrial applications against Thermal Overload, Over Current / Under Current, Locked Rotor, Frequent Start/Stop, Single Phasing, Phase Reversal and Earth leakage

Features

  • Current base Smart logic Motor monitoring algorithm for protection & Energy Saving on partial loading
  • Precise protection against Over/under current, thermal over load conditions, Single phasing, Unbalanced current, Locked rotor as well as Earth Leakage
  • Instantaneous response to abnormal supply or load conditions
  • 7 segment LED display for monitoring all three phase currents as well as tripping annunciation
  • Menu driven user interface with 3 Key & 7 segment LED display
  • Easily programmable protection parameters & trip delay settings
  • Site Selectable Trip class for customized trip characteristics based on Motor type, & nature of application
  • Displays and records trip events for enhanced fault analysis
  • Option available for RS 485 connectivity for interfacing with PC or DCS
  • Wide operating voltage range (Control supply) 90 V to 270 V AC (other options available on request)
  • Applicable for 3 phase induction motors up to 2500 Amp

Product Image  
 
Model No : DSR-100

Description :
Smart Energy Saver Motor Protection Relay with digital 7-segment display for 3 phase current as well as Annunciation of trip events.

Mounting type & Dimensions :
DIN Rail Mounting 95mm(H)X115mm(W)X50mm(D)
 
Model No : DSR-300

Description :
Smart Energy Saver Motor Protection Relay with digital 7-segment display for 3 phase current as well as Annunciation of trip events.

Mounting type & Dimensions :
Panel Flush Mounting 92 X 92 mm (cut out) 96 X 96mm(Bazel)X85mm(D)
 
Model No : CT-250 / CT-2500

Description :
Current Transducer to be used with above Motor Protection Relays

Mounting type & Dimensions :
N/A

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