System 4 Low Voltage Switchboards
– Rated operational voltage Ue 440V
– Rated insulation voltage Ue 690V
– Rated frequency Ue 50Hz
– Rated current horizontal bushbars 1250-4000A
– Rated short time with stand current 50kA 3s
– Type tested factory built assembly to BS EN 60439: Part 1
– Environment protection IP312 to IP54 to BS EN 60529
– Internal seperation Form 4 type 5 to BS EN 60439: Part 1
– Front or rear access cabling versions
– Compact construction, unrivalled stacking density
Packaged Substations
- Indoor packaged substations comprise of a “SYSTEM 4” low voltage switchboard coupled to one or more dry type, air colled, cast resin transformers to IEC 60076/BS EN 60076 (formerly BS 171)
- Ratings 500-2500kVA are available with enhanced ratings possible, by forced cooling with the addition of integral fans
- The standard primary and secondary windings are 11kV and 433 Volt respectivelky, connected in Delta/Star, but other primary and secondary voltages are available
- The packaged substation can be in various physical arrangements, to suit the requirements of individual installations
M-Pact Air Circuit Breakers
- Incorperation of the M-Pact 2 withdrawable Air Circuit Breaker into System 4 switchboards offers state of the art circuit protection and system management together with reliability and performance with which the name M-PACT has always been associated.
- 3 or 4 Pole configurations
- ASTA, KEMA & LOVAG certified in accordance with IEC 947-2/BSEN60947
Depending on the selected type, the M-PRO protection relays offer the following features:
– Earth fault protection
– 12t Cropping
– Neutral Protection
– Thermal memory
– Communication
– Trip History and Indication
– Manual or Automatic Reset
– Watch dog in case of microprocessor malfunction
– Plant Associated Memory Module
– Outputs
– Programmable Inputs
– Load Monitoring
– Overload Protection
– Short Circuit Protection
Conact Details
Tel: 0141 647 9276
Email: [email protected]