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

What is Transformer Cooling System?Transformer Cooling System DefinitionA transformer cooling system is defined as methods used to dissipate heat generated in transformers to prevent damage and ensure efficiency.Components of the cooling systemRadiators or CoolersProvides a large area of heat exchange surface, so that the heat in the oil can be transferred to the surrounding air or water.FansAccelerate air flow and improve heat dissipation efficiency.Oil PumpsIn a forced oil circulation system,

What are the On Load and No Load Tap Changer?DefinitionThe on-load tap-changer and no-load tap-changer of a transformer are devices used to regulate the output voltage of the transformer.Load Tap Changer (LTC)Effect Change tap position under load: The tap position can be adjusted when the transformer is under load without interrupting the power supply. Adjust the output voltage: Adjust the output voltage by changing the transformer ratio to adapt to different load requirements.Peculiarity Flexib

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