GE Industrial Solutions DC OEM Module For use with Gerapid DC Circuit Breaker User Manual
Page 17
DC OEM MODULE FOR USE WITH GERAPID CIRCUIT BREAKERS
Chapter 7 Operating the Module
2011-04-26 S47183Ee rev.01
Design and specifications are subject to change without notice
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Fig. 71-6 Secondary Disconnect with two interlocks
Fig. 71-7 Operation of Rack-in Interlock
Remote Racking
A motor drive 230V 60 Hz and 250 W (0.34 Hp) is available for
Remote Racking option. The gear-motor is installed in the
front-bottom compartment of the trolley. See Fig. 34-1.
Complete rack-in or rack-out operation lasts ~8 seconds.
Fig. 71-8 Limit switches 33-1 and 33-2.
The motor is protected by 2.5
A fuse element. Two
independent limit switches, 33-1 and 33-2, switch off the
motor drive’s supply when the trolley reaches CONNECTED
position. Limit switch 33-3 stops the trolley in TEST position.
See Fig. 71-9.
All three switches are wired to block the breaker CLOSE
operation if the trolley is between CONNECTED and TEST
positions. See circuit diagram E-2, Appendix E.
Trolley Operated Switches
Stationary part of the Module is equipped with set of trolley
position switches. See Fig. 71-9 for location.
Fig. 71-9 Position switches 33-3, S4F, 33-4, 33-5
Following signal switches are available with the Module:
Switch S4F:
NC dry contact available at (Y64
Y65).
Indicate coupling of the racking shaft with racking socket.
Switch 33-4: NO and NC dry contacts available at
(Y66 Y67) and (Y68 Y69). Indicate TEST position.
Switch 33-5: NO and NC dry contacts available at
(Y70 Y71) and (Y72 Y73). Indicate CONNECTED position.
Padlocks
There are three interlocks, which can be padlocked. Padlock’s
diameter shall not exceed 1/3 inch. Padlocks are not included.
Safety Shutters, see Fig. 33-3,
Access Console, see Fig. 71-10,
Control Compartment, see Fig. 71-10.
Fig. 71-10 Padlock set at Access Console (left) and
Control Compartment (right).
Receptacle Snap Lock
Rack-In Interlock
(release)
Rack-Out Interlock
(active)
Plug
Rack-In Interlock activated
Actuator Pins of 33-1
& 33-2
Access to 33-1 & 33-2
33-5/33-4
33-3/S4F
Racking Socket
Park position for the plug.