What is Biot-Savart Law? Biot and Savart conducted many experiments on the force exerted by an electric current on a nearby magnet and at last they derived a mathematical expression that gives the magnetic field at some point in space due to a current passing through a conductor. biot savart law statement The biot savart… Read More »
Purpose of Isolators is to ensure that an electrical circuit is completely de-energized in order to conduct the service or maintenance. Isolators are also familiar as isolation switches for isolating the electrical circuits, such switches are often found in electrical power distribution and industrial appliances and other applications, where it is critical that machinery must have its source of driving power removed for adjustment or repair. High-voltage isolation switches are used in electrical substations to allow isolation of apparatus such as circuit breakers, transformers, and transmission lines, for maintenance. The disconnector switch is usually not intended for normal control of the circuit like circuit breakers, the main purpose… Read More »
You can find below Emergency Lighting System Installation Method Statement in steps that covers the pre-installation steps and after that installation procedure. Pre-installation checks for Emergency Lighting System Ensure the materials, equipment and components are as per approved material submittal and as per technical specification. Ensure that the drawings are current and marked “Issued for… Read More »
Below are a brief narration about the tests required for a diesel generator set. Site Tests a) The following site tests shall be carried out in order to determine whether the material and apparatus comply with this specification at site. b) Not less than seven days notice in writing shall be given to the Engineers… Read More »
Below is the list of some important transformer tests which are conducted on site before final testing and commissioning is planned. Insulation resistance test In this test the insulation resistance is measured by applying appropriate voltage across the terminals as mentioned below: HV to Earth+LV and ground is measured with 5kV test voltage LV to… Read More »
Prior to commencement of transformer installation work, all shop drawings will be processed and submitted for approval by consulting engineer. Shop drawings will include front and side views of the equipment, overall dimensions, components identity, components type and ratings, electrical characteristics, incoming and outgoings location details among others. Plant and Equipment Following equipment and tools… Read More »