Protection Relays Control Application

The Protection Relays Control Application, with the objective of understanding the operation of this type of relays.

ATENG 11056 — Protection Relays Control Application

• The “ATENG 11056” application includes the following elements:
• N-ALI01. Industrial Main Power Supply Module.
• Supply voltage: 400 VAC, 3PH + N.
  ON / OFF removable key.
• Output voltage connections:
• Three-phase + Neutral: 400 VAC.
• Single-phase: 230 VAC.
• Three-phase supply hose with IP44 3PN+E 32 A 400 V connecting plug. N-ALI01
• Differential magnetothermal 4 poles, 25 A, 30 mA AC 6 KA.
  Emergency stop push-button.
• N-ALI03. AC Auxiliary Power Supply (24 Vac) Module.
• Supply voltage (Single-Phase): 230 VAC, 1PH + N.
• Output voltage:
• Single-Phase 24 VAC / 12 VAC.
• 24 VDC.
  N-ALI03
• 0 – 24VDC through potentiometer.
• N-CON01. Three-pole Contactor Module (24 VAC).
• Nominal voltage for power contacts: 400 VAC.
• Nominal voltage for control contacts: 24 VAC.
• Nominal voltage for the control coil: 24 VAC.
• Contacts:
  Three-phase Normally Open Contact (NO) for power circuit.
  N-CON01
  Three Normally Open Contacts (NO) for control circuit.
  Two Normally Close Contacts (NC) for control circuit.
• N-REF. Single-Phase Fixed Resistance Module (4 units).
• Value: 150 ohm.
• Maximum power: 500 W.
• Switch:
• Position 0: circuit opened.
• Position 1: circuit closed.
  N-REF
• Fuse: 2 A.
  GND terminal.
• N-REL23/A. Ground Current Shunt Relay Module.
  Power switch.
  Earth leakage relay.
  Reset push-button.
  Test push-button. N-REL23/A
• Contacts:
  Two Normally Closed contact (NC).
  Indicator lamp.
• Terminals:
  Toroid connection.
  Power supply.
• N-REL23/B. Overcurrent Relay Module.
  Power switch.
  Latch switch.
  Over current relay.
  Normally Closed contact (NC).
• Terminals: N-REL23/B
  Three input terminals.
  Output terminal.
  Power supply.
  3

Specifications

• N-TRA10. 25/5 A Current Transformer Module.
  Current transformer.
• Ratio: 25/5.
• N-TRA31. 1/1000 A Current Transformer Module.
  Current transformer. N-TRA10
• Transformation ratio: 1000/1.
• All necessary cables to realize the practical exercises are included.
  Cables and accessories, for normal operation.
  N-TRA31