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More than Circuit EngineeringEmergency Automatic Relay
Схемы >> Projects >> Emergency Automatic RelayEmergency Automatic Relay
Emergency Automatic Relay (Figure 1, Figure 2) is intended to protect powerful electric machines, transformers, power lines and other devices from short circuits, congestion on the voltage and load current or biased phases.
Fig.
1.
Emergency Automatic Relay.
(Click to enlarge the
Circuit)
Fig.
2.
Emergency Automatic Relay.
(Click to enlarge the
Circuit)
In relays provided blocking switching off at the time when you start congestion, or dispersal of electrical devices. Relay built on the principle of the comparator circuit, where the input signal is compared with exemplary values over 1 / 4 period of the input signal. Emergency Automatic Relay is similar to the relays firm Siemens type 3RB12. Circuit is simulated on a program Electronics Workbench.
O. Kapral
added 23.07.07 19:22:40 | 
looked over 9835 times
