High Power Synchronous Generators Application

The High Power Synchronous Generators Application, to study the procedure and the maneuvers required for the synchronization of synchronous generators with the grid, with the aim of delivering the generated energy as done in actual power plants.

ATENG 11452 — High Power Synchronous Generators Application

• The “HPSG-UB” unit 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.
• Differential magnetothermal 4 poles, 25 A, 300 mA AC 6 KA.
  N-ALI01
  Emergency stop push-button.
• 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.
• Fuse 5 A.
  N-AVR/P
• N-TRANS04. Single-Phase Transformer Module 230 VAC/2x35 VAC, 300 VA.
• 230 VAC single-phase input terminals.
• 230 VAC single-phase input terminals.
• 70 VAC single-phase output terminals.
• Two-position switch: 0 (open) / 1 (closed).
• Fuses:
• Primary side: 5 A.
• Secondary side: 2.5 A. N-TRANS04
• 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.
• 5 A fuse.
  N-SPAD01
• 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:
  N-EALD
• Three-phase and single-phase voltage. Up to 690 VAC L-L.
• 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 and four types of days.
  Automatic daily report of energy consumption maximums and minimums.
• Communications:
  RS – 485 communication port.
  5

Specifications

• N-REL10. Time Analog Relay against Overcurrents Module (0 - 16 A).
  Three-pole analog overcurrent relay.
  Overcurrent, undercurrent and phase loss protection.
• Range 0 – 16 A.
  Automatic and manual reset functions.
  Trip and startup temporization.
  N-REL10
  Two NO NC auxiliary contacts.
• GMG4.5K3PH. 4.5 kW Generator-Motor Group.
  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.
• Motor nominal power: 5 kVA. GMG4.5K3PH
• Motor nominal current: 7.2 A.
• Motor nominal speed: 3000 rpm.
• Elements required for kit generator control of the “HPSG-UB” unit (at least one) (Not included):
• Manual control of the Turbine-Generator group:
• HPSG-K1. Manual Synchronization of High Power Synchronous Generators Kit.
• N-ASYB. Analog and Digital Synchronization Module.
• Supply voltage: 230 VAC.
• Input terminals:
  Generation input terminals L1, L2, L3 and N.
• Output terminals:
  Network input terminals L1, L2, L3 and N. N-ASYB
• Synchronization switch:
• 2 x 24 VDC Connections.
  Digital synchronoscope.
  Synchronization switch.
  Double frequency meter.
  Double voltmeter.
• 400 VAC Lamps.
• N-PWM01. PWM Signal Generator Module 1.
  Enable/disable switch to enable the signal generation.
  Potentiometer for the duty cycle control.
  Display for the working and maximum duty cycle of the generated signals.
  Micro-connector for the transmission of the generated signals.
• 2 mm terminals to monitor the generated signals through an oscilloscope or any other
  N-PWM01
  device.
  ON / OFF power switch.
• N-VVCA5K. 5 kW Motor Speed Controller Module.
  ON / OFF switch.
  Micro connector of 8 pins.
• Supply terminals:
• Supply: 400 VAC.
  Supply terminals L1, L2, L3 and N from the module to the frequency variator. N-VVCA5K
  Output connector.
  Motor speed potentiometer.
  6

Specifications

• Automatic control of the Turbine-Generator group:
• 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 depending on the load demand.
  Enables to connect a generator in parallel with the grid. N-ERP-PGC01
  It allows different switch control modes, such as opening, closing and synchronization.
  Three-phase measurement of the grid and the generator voltage.
  Three-phase measurement of the generator intensity and power.
  Single-phase measurement of the grid intensity.
• 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 to monitor the PWM for the excitation circuit 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 voltage.
• Emergency stop push-button:
  Two circuit breakers for synchronization and island mode operations with state indicator
  lamps.