Switching in Transmission and Distribution Substations Application

The Switching in Transmission and Distribution Substations Application, has been to study the most common operations carried out in these substations, such as, transference of the electrical service from the first busbar to the second busbar without interruptions of electrical supply, distribution through two lines in parallel, switching on/off of loads, commanding logic switch-disconnector, etc.

ATENG 11471 — Switching in Transmission and Distribution Substations Application

• The “ATENG 11471” 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.
  N-ALI01
• Three-phase supply hose with IP44 3PN+E 32 A 400 V connecting plug.
• Differential magnetothermal 4 poles, 25 A, 30 mA AC 6 KA.
  Emergency stop push button.
• 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 a 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 THD current, TDD current and K-Factor.
  Maximums and minimums display.
  Waveforms display, 128 samples/sec.
• Events and data storage:
• Harmonics analyzer:
  Voltage and THD current, TDD current 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.
• N-BUS08. Distribution Busbar Module (4 units).
• Supply voltage: single-phase 230 VAC.
  Double busbar typology, with two disconnectors and one circuit breaker.
  Two interconnection terminals.
  One power input/output to connect lines, generation, loads, etc.
  Two push-buttons by each disconnector/circuit breaker to open and close them.
• State indications lamps: N-BUS08
  Two lamps to indicate the state of busbars.
  Three pilot-lights to indicate the state of the circuit breaker and the disconnectors.
  Two Ethernet connections.
• N-BUS09. Coupling Busbar Module.
• Supply voltage: single-phase 230 VAC.
  Double busbar typology, with two disconnectors and one circuit breaker. The circuit breaker open
  and close the circuit between the two busbars.
  Two interconnection terminals.
  Two push-buttons by each disconnector/circuit breaker to open and close them.
• State indications lamps: N-BUS09
  Two lamps to indicate the state of busbars.
  Three pilot-lights to indicate the state of the circuit breaker and the disconnectors.
  Two Ethernet connections.
  3

Specifications

• N-PSM. Power Switch Module.
• Supply voltage: single-phase 230 VAC.
• Power terminals:
  Four power input terminals (3PH + N).
  Four power output terminals (3PH + N).
• Auxiliary contacts:
  One “NO” contact. N-PSM
  One “NC” contact.
  Two push-buttons to open/close the power terminals and auxiliary contacts.
• Two control contacts of 24 VDC.
• Two voltage supply outputs of 24 VDC.
• N-REL09. Time Electronic Relay against Overcurrents Module (0-16 A).
  Overcurrent electronic relay.
  Overload protection.
• Range: 0 – 16 A.
  Test and reset function.
  NO / NC contact.
  Timing. N-REL09
• Required elements (Not included):
• N-REFT/3C. 3 x 300 W Three-Phase Configurable Resistors Module.
  Configurable star and delta connections.
  Three banks with three three-phase resistors of 1600 Ω.
• Nominal voltage: 400 VAC.
• Nominal power: 3 x (3 x 100) W.
  N-REFT/3C
• N-INDT/3C. 3 x 300 Var Three-Phase Configurable Inductances Module.
  Configurable star and delta connection.
• Inductance: 3 x (3 x 5) H.
• Nominal voltage: 400 VAC.
• Nominal power: 3 x (3 x 100) Var.
• Supply voltage: 230 VAC.
  Common point of normally close/open contacts.
  N-INDT/3C
• N-CAR19T/3C. 3 x 300 Var Three-Phase Configurable Capacitors Module.
  Configurable star and delta connection.
  Three banks with three three-phase capacitors of 2 µF.
• Nominal voltage: 400 VAC.
• Nominal power: 3 x (3 x 100) Var.