POWER CENTER "B630,B400,B250,B160" MAIN/SUB-MAIN SWITCHBOARDS (MSB/SMSB)

 
Technical Data:
Standard compliance to :

MEW S1/IEC 60439

: Panel construction

IEC 60529

: Degree of protection

BS 159/IEC

: Busbars/Connections

IEC 60947

: Breakers/Contactors/Other components

BS 88/IEC 60269

: Fuses

BS 142/IEC 60255 

: Electrical protective relays

BS 3938/IEC 60185

: Current transformers

IEC 60051/BS 89

: Meterings 

And other relevant standards.

:

Kuwait Oil Company(KOC) Specifications             Kuwait National Petroluem Co.(KNPC) Specifications 

System : 3 Phase & Neutral + Earth

Rated operational voltage & frequency (Ue,f)
Rated insulation voltage (Ui)     
Rated impulse withstand voltage (Uimp)
Overvoltage category          
Pollution degree 



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415/240V*, 50Hz.
800V
8 KV
IV
3
*Other voltages on request

Fault level rating :

Rated short time withstand current for busbars (Icw)
Rated peak withstand current for busbars (Ipk)
Rated conditional short circuit current (Icc)    



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25KA/30KA/40KA
52.5KA/63KA/84KA
30KA/40KA

Busbars : Tinned Electrolytic Copper with 99.9% purity(BS 1482)

Marked(BS 159) 
Rating  

 

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for phase identification (colour coded or sleeved)
RYBN…Upto 700A*
*800A & above available on request
E…….50% of phase busbar
   
Enclosures :

Material
Painting
Degree of protection(IEC 60529)
Form of internal seperation(IEC 60439-1)
Cable entry



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Electro galvanized, Zinc coated steel sheet
Powder coating, Shade RAL-7032, light grey.
IP 42 / IP 52 / IP 54
Form 1
Top or Bottom

B series MSB/SMSB offers advantages that sets safety & ease of maintenance

-     Type tested assembly (TTA)
-         Mounting plate consisting of : (non cellular)
      1.       Vertical busbars-with branches busbar feeding MCCBs
      2.       Outgoing MCCBs-mounted horizontally
      3.       Main incomer MCCB-mounted vertically

-         -          Front plate(cover) provided so that no live parts are exposed (MCCB toggle to project outside 
      for operation)
-         Meters & auxillaries are mounted in a separate compartment
-         Top / Bottom cable entry 

*Available on request-complete cellular (fixed type) design similar to MLTB/MCC construction.