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Busbars and Connectors in HV and EHV installations

Tubular busbar

Busbars and Connectors in Indoor & Outdoor Installations What is Electric Busbar? A conductor or group of conductor used to collect the power from incoming feeders and distribute to the outgoing feeders is known as busbar. In other words, Busbar is a junction where the incoming  and outgoing feeders current meets i.e. it collects the power at single point. Busbars …

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Power Transformer Protection & Faults

Power Transformer Protection & Faults

Power Transformer Protection and Types of Faults In our previous post, we have already discussed about electrical protection Systems, devices and units. Today, we will discuss about different types of transformer protection and faults in details. Power Transformer Faults Transformers are vital equipment in transmission and distribution network and so the protection against internal and external faults is a very …

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All About Electrical Protection Systems, Devices And Units

Electrical Protection Systems And Units

Electrical Protection Units And Systems Introduction to Electrical Protection Systems HV, MV and LV[1] electric installations and equipments are subjected to internal and external faults that can cause serious damages in persons and other equipments. To avoid and to minimize the consequences of those faults protection devices associated to equipments that are able to break electric current are required. For …

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Maintenance of Transformer – Power Transformers Maintenance, Diagnostic & Monitoring

Maintenance of Power Transformer - Transformer Diagnostic and Monitoring

Maintenance of Power Transformer – Transformer Diagnostic and Monitoring Introduction Being transformers static machines without any moving and turning parts, they are very reliable machines, and if maintained properly, can last for 40 years or more. Also they do not trip or blow when oven-stressed (except under extreme conditions), transformers are frequently overloaded and allowed to operate well beyond its …

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Current Transformers (CT) – Types, Characteristic & Applications

Current Transformers (CT) - Construction, Types, Installation, Characteristic & Applications

Current Transformers (CT) – Construction, Types, Installation, Characteristic & Applications What is Current Transformer (CT) ? Current transformers (CT) are used in High Voltage (HV) and Medium Voltage (MV)[1] installations to give an image of electrical current to protection relays and units and metering equipment and they are designed to provide a current in its secondary proportional to the current …

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Transformers Fire Protection System – Causes, Types & Requirements

Transformers Fire Protection System – Causes, Types & Requirements

Basic Requirements for Transformers Fire Protection System By: Manuel Bolotinha Causes of Fire in Transformers Excessive overheating, extremely severe short circuits, faults in the oil and lightning strokes may cause a fire on transformers. Transformer fires are rare but the impact is great. Even though a transformer involved in a fire likely will be destroyed almost immediately, as seen in …

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Corona Effect in Transmission Lines & Power System

A Full Guide about Corona Effect - Corona Discharge in Transmission Lines

A Full Guide about Corona Effect – Corona Discharge in Transmission Lines What is Corona or Corona Discharge? When an alternating potential difference is applied across two conductors whose spacing is large as compared to their diameters, there is no apparent change in the condition of atmospheric air surrounding the wires if the applied voltage is low. However, when the …

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Transformer Phasing: The Dot Notation and Dot Convention

 Transformer Phasing: The Dot Notation and Dot Convention The Dot Notation Generally, when we study about Transformers, we assume that the primary and secondary voltage and currents are in phase. But, such is not always the case. In Transformer, The phase relation between primary and secondary currents and voltages depends on how each winding is wrapped around the core. Refer …

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Transformer Efficiency, All day Efficiency & Condition for Maximum Efficiency

Transformer Efficiency, All day Efficiency & Condition for maximum Efficiency

Transformer Efficiency, All day Efficiency & Condition for maximum Efficiency Efficiency of Transformer Transformer efficiency may be defined as the ratio between Output and Input. Transformer Efficiency = Output / Input On specified power factor and load, the transformer efficiency can be found by dividing its output on Input (similar to other electrical machines i.e. motors, generators etc). But the …

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Transformer Library

 Transformer Library Transformer Working principle of a transformer Ideal Transformer Induction law ( For Transformer) Ideal power equation of the Transformer E.M.F Equation of the Transformer Energy Losses in Transformer Why Transformer Rating In kVA, Not in KW? Transformer Regulation With Example.  Transformer Efficiency, All day Efficiency & Condition for Maximum Efficiency Advantages and Disadvantages of Three Phase Transformer over …

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