How Servo Voltage Stabilizer can prevent electrical short circuit firing?
There can be numerous causes resulting in the above type of contacts including damage to the insulation of conductors, loose, broken or stripped wires and cables, and deposition of conducting materials such as dust, moisture, etc. Major Causes of Short Circuit A sudden surge of current equals to hundred times of working current flows through the circuit. This leads to the damage of electrical equipment. The following two phenomena are responsible for the devastating effects of short circuits − 1) Thermal Phenomenon This phenomenon refers to the energy released into the electrical circuit when short circuiting current flows through the circuit. This thermal effect results in the causes of a short circuit − • Melting of the conductor contacts • Damage to insulation • Generation of electrical arcs • Destruction of the thermal elements in the bimetallic relay 2) Electro-dynamic Phenomenon This phenomenon refers to the production of intensive mechanical stress when the current crosses and results in the following conditions − • Breakage of the conductors • Repulsion of contacts inside the contactors • Distortion of conductors in windings To Control short circuit we use Circuit breakers with Relay and or Line Contactors that can be reset either manually or automatically. It automatically breaks the circuit within a short cutoff time and separates the load from the power supply that protects the circuit from any damage. The magnetic triggers of CB open the poles. CBs limit both the thermal and thermodynamic effects.
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