transformer oil

Collecting Oil Sample from Oil Immersed Transformer

Why we collect oil from transformer: Generally we knows transformer is used to transfer the power supply from one place to another without changing the frequency. transformers playing vital role in the power generation and transformation areas. transformer also called static induction machine. because its working on induction principle. moreover oil is the important component…

maintenance of transformer

Maintenance of Transformer

Transformer: Transformer is static electrical machine. which is used to transfer power from one place to another place without changing the frequency. there are two different types of transformer used in electrical field. they are, power transformer lighting transformer power transformer used for transferring high voltages from generating station to substations. power transformer is most…

vector group test of transformer

Vector Group Test of Power Transformer

Power transformer: The power transformer used to transfer the high voltage supply from one place to another. the power transformer mostly used in power generating station and bulk industry areas. for requiring more power in industrial areas they are using parallel connection of power transformer. the parallel connection of transformer required vector group test for…

transformer routine testing

Type Test and Routine Test of Transformer

For confirming the specifications and performances of an electrical power transformer it has to go through numbers of testing procedures. Some tests are done at manufacturer premises before delivering the transformer. Mainly two types of transformer testing are done at manufacturer premises- type test of transformer and routine test of transformer. In addition to that…

restricted earth fault

Restricted Earth Fault Protection of Transformer | REF Protection

REF Protection: An external fault in the star side will result in current flowing in the line current transformer of the affected phase and at the same time a balancing current flows in the neutral current transformer, hence the resultant current in the relay is therefore zero. So this REF relay will not be actuated…

air core transformer

Air Core Transformer

If an alternating current is supplied to a coil, an alternating magnetic field is produced surrounding it. If another coil is brought inside this magnetic field, an alternating emf is induced across the second coil also as per Faraday’s law of electromagnetic induction. This induced emf in the second coil can be utilized to feed…

short circuit current transformer

Maintenance of power transformer

Power Transformer Transformer is the heart of any power system. Hence preventive maintenance is always cost effective and time saving. Any failure to the transformer can extremely affect the whole functioning of the organization. Important components in power transformer to consider for preventive maintenance: The best way of protecting a transformer is to have good…

transformer

Periodic inspection & diagnostics of transformer

Transformer is a static device, thus it requires less attention but with proper Periodic inspection & diagnostics of transformer it would be possible to avoid the unwanted break down & frequent interval of schedule maintenance. As transformer is the heart of power network, the maximum availability of it and also to meet the full life…

Transformers

Capacitor Voltage Transformer CVT

In high and extra high voltage transmission systems, capacitor voltage transformers (CVTs) are used to provide potential outputs to metering instruments and protective relays. In addition, when equipped with carrier accessories, CVTs can be used for power line carrier (PLCC) communication. The details of CVT is given below:- Capacitor stack The capacitor stack is a…

OC & SC Test of Transformer

  Transformer is static machine which pass the electrical energy from one place to another place without change the frequency. Generally Transformer having two types of test, Open circuit test Short circuit test Open circuit (OC) test The shunt branch parameters can be determined by performing this test. Since, the core loss and the magnetizing…

2017- 2018 @ All rights reserved by Electricalmastar.com