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A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.
Example Ladder Logic Diagram. The schematic diagrams for relay logic circuits are often called line diagrams, because the inputs and outputs are essentially drawn in a series of lines. A relay logic circuit is an electrical network consisting of lines, or rungs, in which each line or rung must have continuity to enable the output device. A ...
A relay allows circuits to be switched by electrical equipment: for example, a timer circuit with a relay could switch power at a preset time. For many years relays were the standard method of controlling industrial electronic systems. A number of relays could be used together to carry out complex functions (relay logic). The principle of relay ...
4. slow rpm 33L rotation left 30L 33R rotation right 30R Indicators 49 flasher unit in 15, 15+, 15/54, +, +15, X 49a flasher unit out, indicator switch in 54L, S, S4, L 49b out 2. flasher circuit 49c out 3. flasher circuit C 1st flasher indicator light K, K1, P C2 2nd flasher indicator light K1, K2, K3, K4 C3 3rd flasher indicator light K3, K4 L
Download as PDF; Printable version; In other projects Appearance. ... Solid State Relay internal diagram Source I created this work based on Ssr.jpg. Date June 11, 2009
(from top) Single-pole reed switch, four-pole reed switch and single-pole reed relay. Scale in centimeters. A reed relay [i] is a type of relay that uses an electromagnet to control one or more reed switches. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them.
An optional time delay circuit that controls the timing of the switch action after the input has reached the threshold; A power supply for the static relay circuits; For example, an overcurrent protective relay may have an AC to DC power supply for the input circuit, a level detector circuit and an RC time delay circuit. [1]
A Buchholz Relay is installed in the transformer oil circuit, and should the relay detect 'gassing' of the oil, will trip out the trains main circuit breaker, so isolating the equipment from the supply and therefore protecting the equipment from overheating or short circuiting. Once tripped, the equipment can only be reset by maintenance staff.