Switchboards below 1kV - ЩО-90, ЩО-70 distributing panels

Switchboards below 1kV - ЩО-90, ЩО-70 distributing panels

Switchboard panels ЩО-90 are intended for reception and distribution of electric energy of three-phase, AC 50Hz at a voltage of 0.66 kV and for protection the outgoing lines against overload and short circuit currents.
Switchboards are equipped from panels and serviced from the front side.

THE BASIC TECHNICAL SPECIFICATION

PARAMETERS NAME

PARAMETERS VALUE

The rated voltage, kV

 0,22 ; 0,38 ; 0,66

Frequency, Hz

50 ; 60

Panels purpose

entry ;

entry & distributing ;

distributing ; sectional .

Outgoing lines number

2 - 9

The rated incoming current, A

630 ; 1000 ; 1600 ; 2000 ; 2500 ; 4000

The rated current of sectional panels, A

 

630 ; 1000 ; 1600 ; 2000 ; 2500 ; 4000

The rated current of outgoing lines, A

16 ; 25 ; 32 ; 40 ; 63 ; 100 ; 125 ; 160 ; 200 ; 250 ; 400 ; 630 ; 1000 ; 1600

Busbars electrodynamic resistance, kA

 

41

 


At the two-row arrangement of panels, switchboard is completed by busbar bridge. The distance between the panels facades - 1500 or 2000mm.

The climatic performance  - У3 by ГОСТ 15150-69.

The panels protection degree as per ГОСТ 14254-96 - the first digit in the scheme marking.
* for open performance – IP00, and IP20 at front fide.
* for closed performance – IP20, and IP00 at bottom side.