Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is are the Type of Temperature Indicator of Transformer?Temperature Indicator DefinitionA temperature indicator in transformers is defined as a precision device used for protection, temperature indication, and cooling control.Construction of Temperature Indicator of TransformerThese indicators are provided with a sensing bulb. This sensing bulb is placed in a pocket on the roof of transformer tank. The pocket is filled with transformer oil. The bulb is connected to the instrument housing by

What is MOG in Transformer?Magnetic Oil Gauge DefinitionA Magnetic Oil Gauge (MOG) is defined as a device that indicates the oil level in a transformer’s conservator tank.Main PartsThe MOG includes a float, bevel gear arrangement, and indicating dial, essential for its operation.Working PrincipleAll oil-immersed distribution and electrical transformers are provided with expansion vessel which is known as conservator of transformer. This vessel takes care of oil expansion due to temperature rise.

What is the Radiator of Transformer?Radiator in Transformer DefinitionA radiator in a transformer is defined as a component that helps cool the transformer by dissipating heat from the transformer oil.Importance of CoolingControlling the temperature of the oil is crucial to extend the transformer’s capacity and prevent overheating.Working PrincipleThe radiator increases the surface area to dissipate heat, aiding in efficient cooling of the transformer oil.Type of radiatorNatural air cooled radia

What is Conservator Tank of Transformer?Conservator Tank DefinitionA conservator tank is a cylindrical container on a transformer, providing space for the oil to expand and contract.FunctionThe conservator tank allows transformer oil to expand when hot and contract when cool, preventing overflow and ensuring efficient operation.ConstructionThe conservator tank is a cylindrical oil container closed at both ends. It has a large inspection cover on each side for easy maintenance and cleaning.Conser

What is Silica Gel Breather of Transformer?Silica Gel Breather DefinitionA silica gel breather is a device used to filter moisture from the air entering a transformer, protecting its insulation.Air Flow MechanismTransformer oil expansion and contraction cause air to move in and out of the conservator tank, necessitating filtration.Construction of Silica Gel BreatherThe silica gel breather for transformers is simple in design. It is a container filled with silica gel that air passes through. Sili

What are the Types of Transformers Windings?Types of Transformers Core type transformers have windings on outer limbs Shell type transformers have windings on inner limbsMainly there are two types of transformer Core type transformer Shell type transformerTypes of Winding used for Core Type TransformerCylindrical WindingsThese windings are layered type and uses a rectangular or round conductor shown in Fig.(a) and (b). The conductors are wound on flat sides shown in Fig.(c) and wound on the rib

CooperationSafety requires the cooperation of all workers involved.AwarenessWorkers must be aware of all safety rules and regulations.Voltage DangerTreat all voltage levels as dangerous, even if they don’t cause shock.Dead CircuitEnsure the circuit is off before starting any work.Personal Protective EquipmentUse appropriate safety gear to protect yourself.

Safety Rules for Overhead Lines DefinitionSafety rules for overhead lines include guidelines to prevent accidents around live electrical conductors.Avoid Climbing and TyingNo climbing towers with live conductors and no tying animals to tower parts.Handling Snapped ConductorsProper shutdown and earthing are essential before touching snapped conductors.Maintain Safe ClearancesFollow safety clearances for overhead lines to avoid hazards.Report IssuesReport any sparking or other issues with live ove

What is Dielectric Grease?Dielectric Grease DefinitionDielectric grease is a silicone-based grease used to protect electrical components from dirt, moisture, and corrosion.Non-Conductive PropertyDielectric grease is an insulator, which means it prevents the flow of electrical current.Usage PrecautionEnsure dielectric grease does not contact conductive paths to avoid disrupting electrical connections.Comparison with VaselineVaseline is weaker and less durable than dielectric grease, especially in

What is a Cut Sheet ?Cut Sheet DefinitionA cut sheet (or spec sheet) is defined as a document that details the specifications and features of a piece of equipment.PurposeCut sheets are used in the electrical industry to provide necessary details for equipment installation and approval.Specifications IncludedThey include key specifications such as sizes, ratings, capacities, and part lists.Comparison ToolCut sheets help in comparing different equipment models by listing alternate model numbers an