Define Alternating-current. Alternating-current synonyms, Alternating-current pronunciation, Alternating-current translation, English dictionary definition of Alternating-current. n. Abbr. AC An electric current that reverses direction in a circuit at re
An AC can be sinusoidal or square wave type. A sinusoidal or sine type AC makes the above alterations in an exponential form, meaning the rise and the fall proceeding of the waves vary instantaneously with time and takes the form of the wave as shown in the diagram. A square wave AC di...
An alternating-to-direct current converter, wherein via using relay control and bringing a load current sensor, capacitor, capacitor voltage sensor, power active filter with corresponding control circuit it is provided functioning a three-wire three-phase system together with shaping harmonic current be...
having a ground to conduct current when the line is grounded to operate the ground detector; a detector relay in said circuit influenced to operate by circuit current change during transmitting; and means operated T5 by the detector relay when deenergized to remove said ground from the circuit....
(FIG. 2). Should either temperature pass a preset value, the contacts will close and their associated relay (K9 or K10, respectively) will energize, shutting down the entire system 10. Relay K7 operates through the energized contacts of relay K6. Together, relays K6 and K7 provide a return...
The paralleling equipment comprises one or more relays and in the case of more than one relay, these are arranged with their contacts in parallel, one relay being of the "fast-acting" type. When the impulse amplifier 52 transmits a signal for paralleling, it also feeds a signal to the ...
The paralleling equipment comprises one or more relays and in the case of more than one relay, these are arranged with their contacts in parallel, one relay being of the "fast-acting" type. When the impulse amplifier 52 transmits a signal for paralleling, it also feeds a signal to the ...
The timed delay relay has the advantage that there would be no need to install a limit switch remotely or otherwise to active the hold system. This would be desirable in the installation of a timed delay DC hold circuit in an existing fire dampener, for instance. In this circuit, the AC...
The brake in releasing separates contacts BI to insert cooling resistance RE I in circuit with its coil. Switch H engages contacts HI which short circuits resistance RET, bringing the elevator field winding MF up to full strength. The non-reversal relay NR is provided with two coils, one ...
The paralleling equipment comprises one or more relays and in the case of more than one relay, these are arranged with their contacts in parallel, one relay being of the "fast-acting" type. When the impulse amplifier 52 transmits a signal for paralleling, it also feeds a signal to the ...