Selco USA

There are various protective devices and units available in the market to keep an eye on electrical-systems. These devices are responsible to test, measure and monitor faults, over-currents and short circuits, et cetera. It is important to avoid the failure of such major systems and hazards for individuals and property. This can be done by utilizing preventive and protective devices, such as the insulation monitoring device circuit and fault monitor device, et cetera. Significance of insulation resistance comes into picture when there is a need for prevention of damage and injury to an electrical system. It holds great importance when it comes to ensuring the reliability of electrical systems and equipment. Its role does not end here. It continues as it also serves as an indicator of the condition of an electrical installation. As insulation resistance is important for different purposes, it needs to be tested, measured and monitored. Usually, people get confused with insulation mon...

Any electric power system has a tendency of shutting down at some or other points of time. It happens due to certain faults such as over currents and short circuits. These faults may occur due to operation mistakes, ambient conditions, lack of maintenance and atmospheric discharges. It is true that we cannot have control over ambient conditions and atmospheric discharges but still we can adopt available techniques and tools to detect or monitor ground faults. We can utilize ground fault monitor and detector as a protective device to detect fault conditions in order to limit the loss of service due to any failure. Let us discuss more it. Ground Fault – When one of the system phases gets on direct contact to the ground or to any metallic part which is grounded, it results in ground fault. It is important to protect against ground fault because it can result in reduced insulation, physical damages to the insulation system or excessive transient or steady-state voltage stress on insula...