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Under/over Frequency Relay Trainer (Model : XPO-PRT/UOF)

The Under/Over Frequency Relay Trainer, Model XPO-PRT/UOF, boasts a range of salient features designed to enhance the learning experience in frequency protection relay systems. Equipped with a built-in relay testing kit, including a voltage injector, current injector, elapsed time counter with 1-millisecond resolution, and trip relay logic, this trainer eliminates the need for a separate testing kit. Designed with versatility in mind, the XPO-PRT/UOF is not only an essential tool for academic use but also proves valuable for postgraduate projects and research purposes. To support effective instruction, each trainer comes with a comprehensive Instructor Guide, while students benefit from a dedicated Student Workbook, ensuring a well-rounded and immersive learning experience.

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Salient Features:

  • Facilitates characteristics of Frequency protection relay. Each of above trainer has built in requisite relay testing kit typically consisting of voltage injector, current injector, elapsed time counter (1 msec. resolution), trip relay logic etc.
  • The Trainer need a few set of associated relay testing (current / voltage injection etc. ) panels (7-8 nos. typically) which are mounted in a light weight sturdy aluminium profile flat demo panel system. Do not need any separate testing kit.
  • Facilitates easy and safe wiring by students due to use of 4mm sturdy Shrouded banana patch cords and shrouded socket arrangements for high voltage circuits.
  • Each panel has ABS moulded plastic sturdy enclosure, and colourful screwless overlays showing circuits diagrams & its connection tag numbers for easy understanding and connection.
  • Useful for Post Graduate Project & Research Purpose.
  • Set of Instructor Guide & Student Workbook.

Technical Specifications

Input 3 phase DOL Starter panel (EMT1)

  • 4 pole MCB of 415 V/4A.
  • DOL9AContactor with 230V / 50 Hz / 11VACOIL.
  • Bimetallic thermal O/Lrelay with range 2.5A-6A.
  • Green shrouded socket provided to extend earth

Integrated AC 3 phase measurement panel (EMT 34)

  • Consist of (96 X 96 mm) Digital meters for 3 ph.
  • Measures V, I, PF (0.2 lag – unity 0.2 lead), Hz. Hence separate analog wattmeter (3ph., 1ph.) are not needed.
  • Green shrouded socket provided to extend earth

Under / Over Frequency Relay Panel (EMT67)

  • All the connection of relay are brought out on this panel.
  • 1 NO and 1 NC contact
  • Relay Coil

415/110VAC, Star/Star Step Down Transformer Panel (EMT54)

  • This panel consisting of 415/110VAC, 50VA, Star / Star Step Down Transformer Panel
  • All the connections of transformer primary and secondary are brought on SBS5 on the top of panel

Over current & elapsed time measurement panel (EMT 39)

  • Consists of AC ammeter of 20A
  • Elapsed time counter range 999.001 sec, resolution 1msec.

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