Cooper Low Impedance Bus Differential Relay M-LIB3, Руководство по эксплуатации

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S150-34-1
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2.4 F/C Rack Panel
19” 3U rack panel suitable to house up to seven plug-in modules type M-BF3 or M-BC3 including
back printed circuit board with :
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Diodes for supply of the measurement bus of two Main Zones and one Check Zone
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7 Female sockets for plug-in connection of the M-BF3 or M-BC3 modules.
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7 Terminal boards with screw terminals for connection to the system.
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1 Male connector socket for interfacing with the differential protection relays.
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1 Female connector socket for interconnection with other F/C Rack Panels.
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1 Power supply module:
The auxiliary power is supplied by a built-in interchangeable module fully isolated and self
protected. Two options are available
:

24V(-20%) / 110V(+15%) a.c.

80V(-20%) / 220V(+15%) a.c.
a) -

b) -


24V(-20%) / 125V(+20%) d.c.

90V(-20%) / 250V(+20%) d.c.
Before energizing the unit check that supply voltage is within the allowed limits.
Power consumption : nx 4W (n = number of modules M-BF3)
The unit can supply up to 12 modules M-BF3 plus two modules M-BC3 (one unit can supply two F/C Rack
Panels).