MONOBLOC SUBSTATION 1000kVA

Section 1:

5kV main switch including:

• Load switch 5kV 600A c/a 3x fuses 160A DIN 5kV (45mm x 292mm)
• Interlock Kirk-key, between the door and the switch to prevent opening under voltage
• Recessed handles to prevent from breaking during transport
• Removable protection grid, to secure the changing of fuses
• 3x LED high voltage presence indicators installed directly at the 5kV switch input
• 3x MALT sockets on each phase (load side of the 5kV switch) and 1x on the MALT outside the cabinet
  
• Windows (safety glass) for displaying the status of the switch contacts

Section 2:

4160 / 600-347V “Delta-Wye” transformer including:

• Dry type transformer :
  • Complies with NRCan2019 efficiency standards
  • 1000kVA
  • Class H insulation 220°C
  • Copper winding
  • 150°C temperature rise
  • Primary: 4.16kV (Delta) BIL: 30kV
  • Secondary: 600/347V (Wye) BIL: 10kV
  • Primary taps: 4-2.5% (2FCAN + 2FCBN)
  • IZ : 6% (est.)

• Neutral resistance 69Ohm, 5A continuous
• Tertiary winding 5kVA 120/240
• SE-325 neutral resistance monitoring relay with ER 600 and CT
• Measuring module installed in the control compartment (option #Z60)

Section 3:

• 600V distribution panel including :
  
  
• 1x main input 1200A a/c busbar
  
• 2x KD (25kA) 400A 3-pole c/a ST circuit breakers (ST= “Shunt-Trip” magnetic release)
  
• 2x KD (25kA) 300A 3-pole c/a ST circuit breakers (ST= “Shunt-Trip” magnetic release)
• 1x 200A circuit breaker without ST
  
• 1x 100A circuit breaker without ST
• 1x 60A circuit breaker without ST
  
• Padlocking device on all circuit breakers;
• 4x SE-105 c/a CT 200/5 protections on branches with “shunt-trip” (Ground Fault):
  
  • Test system for ground fault protection relay
    
• Auxiliary distribution with 120/240V distribution panel, with power outlet only