Generator Protection Relay Application

The Generator Protection Relay Application, for the training at both the theoretical and practical levels in the field of control and protection systems of high power generators.

ATENG 11600 — Generator Protection Relay Application

• The “ATENG 11600” application includes the following elements:
• N-ALI01. Industrial Main Power Supply.
• 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-ERP-PGC01. Generator Protection Relay Module.
• Automatic speed and voltage controller: it enables to connect up to 16 electric generators in
  parallel-island with active and reactive power distribution and start/stop operation control
  depending on the load demand.
  Enables to connect a generator in parallel with the grid.
  It allows different switch control modes, such as opening, closing and synchronization.
  Three-phase measurement of the grid and the generator voltage. N-ERP-PGC01
  Three-phase measurement of the generator current and power.
  Single-phase measurement of the grid current.
• Protection system:
• Generator: Maximum/minimum voltage (59/27), maximum/minimum frequency (81O/U), voltage
  asymmetry, detection of dead busbars, overvoltage (32), load unbalance (46), negative sequence
  power/reduced power (32R/F), overcurrent by defined curve (50/51), inverse time overcurrent
  (IEC255), measured ground fault (50N/51N), phase rotation, switches faults.
• Network: Maximum/minimum voltage (59/27), maximum/minimum frequency (81O/U), vector jump,
  phase rotation.
  Measurement terminals.
  Output terminals for the connection to the lab grid.
• 2 mm terminals for monitoring the PWM regulation of the excitation and speed signals.
• Three control switches to:
  Start and stop the turbine.
  Give permission to synchronize the generator with the grid.
  Give permission to synchronize the generator with the national grid.
• Two potentiometers to:
  Adjust the set point for the generated active power.
  Adjust the set point for the output voltage.
• Emergency stop push button:
  Two circuit breakers for operation in synchronization and island mode with indicator lights.
• N-EALD. Electrical Network Analyzer Module with Oscilloscope and Data Acquisition.
  The network analyzer module allows fulfilling measurements, displaying and analyzing all the parameters
  of the AC electrical networks. It has an LCD screen and push-buttons for the navigation through the
  different menus. It includes specific software for monitoring current and voltage curves, harmonics
  display, tariffs programming, alarms programming and electrical parameters storage.
• Features:
• Multifunctional three-phase power meter:
• Three-phase and single-phase voltage. Up to 690 VAC L-L. N-EALD
• Line and neutral nominal current: 10 A.
  Active, reactive and apparent power.
• Suitable frequencies: 25 Hz, 50 Hz, 60 Hz and 400 Hz.
  Display of the V-I vector diagram.
• Supply voltage: 85 – 265 VAC.
• Energy quality control:
  Current and voltage individual harmonics measurement. Up to the 40th harmonic.
  Voltage and current THD, TDD and K-Factor.
  Maximums and minimums display.
  Waveforms display, 128 samples/sec.
• Events and data storage:
• Harmonics analyzer:
  Voltage and current THD, current TDD and K-Factor, up to the 40th harmonic.
  Current and voltage harmonic spectrum and angles.
• Tariff programming:
  Class 0.5S IEC 62053 – 22, active and reactive power in four quadrants.
  Measurement of the total and per phase three-phase active, reactive and apparent powers.
  Usage time, four energy/demand records of total tariffs.
  Eight tariffs, four seasons, four types of days.
  Automatic daily report of energy consumption maximums and minimums.
• Communications:
  RS-485 communication port.
  4

Specifications

• N-REFT/3C. 3 x 300 W Three-Phase Configurable Resistors Module.
  Three three-phase banks with resistors of 1600 Ω each one.
  Configurable star and delta connections.
• Nominal voltage: 400 VAC.
• Nominal power: 3 x (3 x 100) W.
  N-REFT/3C
• N-ERP-MF01. Digital Faults Simulator Module.
  Enables injecting one, two or three pole different faults at the desired location through fault and line
  terminals.
  Trip time potentiometer.
• Ethernet connection: two communication ports for SCADA remote control.
• GMG4.5K3PH. 4.5 kWA Generator-Motor Group. N-ERP-MF01
  Motor-generator group coupled in an aluminum frame with wheels.
• Generator nominal power: 4.5 kVA.
• Generator nominal speed: 3000 rpm.
• Generator nominal output current: 6.5 A.
• Generator nominal excitation current: 4 A.
• Generator power factor: 0.8.
• Generator nominal output voltage: 3 x 400 VAC.
• Frequency: 50/60 Hz. GMG4.5K3PH
• Motor nominal power: 5 kVA.
• Motor nominal current: 7.2 A.
• Motor nominal speed: 3000 rpm.
• N-INDT/3C. 3 x 300 Var Three-Phase Configurable Inductances Module.
  Three three-phase banks with inductances of 5 H each one.
  Configurable star and delta connection.
• Nominal voltage: 400 VAC.
• Nominal power: 3 x (3 x 100) Var.
  N-INDT/3C
• GEC-KIT-1. Generator Excitation Circuit Kit 1.
• N-AVR/P. Automatic Voltage Regulator Module.
• Input voltage: 0 – 100 VDC.
  Input for voltage regulation signal through PWM control.
  Terminals for PWM signals monitoring.
• Output voltage: 0 – 100 VDC.
• DC ammeter for output current measurement, 0 – 4 A.
  3-pin female connector for connection to the excitation input of a generator. N-AVR/P
• Fuse 5 A.
• N-TRANS04. Single-Phase Transformer Module 230 VAC/2x35 VAC, 300 VA.
• 230 VAC single-phase input terminals.
• Terminals for a 70 VAC single-phase output.
• Terminals for two 35 VAC single-phase outputs.
• Two-position switch: 0 (open) / 1 (closed).
• Fuses:
  N-TRANS04
• Primary side: 2 A.
• Secondary side: 5 A.
• N-SPAD01. Single-Phase AC/DC Converter Module 1.
• 0 – 230 VAC single-phase input terminals.
  AC/DC rectifier.
  DC output terminals.
  Filter capacitor for voltage ripple reduction.
  Bypass terminals for filter capacitor connection.
• Fuse 5 A. N-SPAD01
  5

Specifications