Solid state power controllers (SSPC's) are to be considered for use as replacements of electromechanical relays and circuit breakers in future spacecraft and aircraft. They satisfy the combined function of both the relay and circuit breaker and can be remotely controlled by small signals, typically 10 mA, 5 to 28 v(dc). They have the advantage over conventional relay/circuit breaker systems in that they can be located near the utilization equipment and the primary ac or dc bus. The low level control, trip indication and status signals can be circuited by small gauge wire for control, computer interface, logic, electrical multiplexing, onboard testing, power management, and distribution purposes. This results in increased system versatility at appreciable weight saving and increased reliability. Conventional systems require the heavy gage load wiring and the control wiring to be routed from the bus to the load to other remote relay contacts, switches, sensors, etc. and to the circuit breaker located in the flight engineer's compartment for purposes of manual reset.
Solid state power controllers
1974-03-01
Miscellaneous
No indication
English
NTRS | 1971
|SAE Technical Papers | 1970
|28 vdc solid-state power controllers
Emerald Group Publishing | 2001
Solid-State Power Controllers Meet System Demands
SAE Technical Papers | 1992
|Solid-State Power Controllers for Aircraft Electrical Power Systems
SAE Technical Papers | 1970
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