Safe Use of Switchgears.

Even while using weatherproof switchgear, safety always comes first because prevention is better than  cure. Be precautious instead of being sorry. Remember that electricity is not anyone’s friends thus extreme carefulness is required while handling switchgears  or any other electrical  consumable.
Circuit breakers and fuses disconnect when current exceeds a predetermined safe level. However they cannot sense other critical faults, such as unbalanced currents for example, when a transformer winding contacts ground. By themselves, circuit breakers and fuses cannot distinguish between short circuits and high levels of electrical demand.
To implement differential protection, any section of a conductive path may be considered a node, The conductive path could be a transmission line, a winding of a transformer, a winding in a motor, or a winding in the stator of an alternator. This form of protection works best when both ends of the conductive path are physically close to each other.

Two identical current transformers are used for each winding of a transformer, stator, or other device. The current transformers are placed around opposite ends of a winding. The current through both ends should be identical. A protective relay detects any imbalance in currents, and trips circuit breakers to isolate the device. In the case of a transformer, the circuit breakers on both the primary and secondary would open.

A short circuit at the end of a long transmission line appears similar to a normal load, because the impedance of the transmission line limits the fault current. A distance relay detects a fault by comparing the voltage and current on the transmission line. A large current along with a voltage drop indicates a fault.

Electronics industry maybe your bread and butter. It maybe  your passion. But remind yourself of the fact that nothing is more important than your health and well being. Once you know the dos and do-nots of weatherproof switch gears, feel free to order  a few at Direct Wholesale Supplies.

 

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