Comparison of Core and Shell Type Transformer
Power Transformers can also be classified according to the type of construction: Core Type and Shell Type. Type of construction…
Advantages of Triplex Transformer
Triplex transformer is a three-phase transformer made of three single-phase transformers that are interconnected using bus to form three-phase bank.…
UNDERSTAND SYNCHRO CHECK RELAY FOR SOURCE PARALLELING
Synchro check or sync check relays are used to verify that voltage, phase angle, frequency and phase rotation across two…
What is Anti Pump Relay?
Anti-Pump relay is used in medium voltage power circuit breaker closing circuit to ensure that if breaker receives simultaneous open…
Double Line to Ground Fault Waveform
Characteristics of a Double Line to Ground Fault or Phase to Phase to Ground fault Double line to ground fault…
Transformer Open Circuit Test
Open circuit test is performed on a transformer to measure the no-load losses and to obtain the transformer core electrical…
Transformer Excitation Current
What is transformer excitation current? When normal voltage is applied to the terminals of a transformer with the secondary circuit…
Overcompensation of reactive power for induction motors
When excessive amounts of reactive power compensation (PF Correction) is applied to terminals of induction motor, it can result in…
Single Phase Motor Starting
Basics of single-phase motor starting: A single phase motor connected to a single-phase supply will not rotate as the windings…
Autotransformer Starter: A reduced voltage motor starting method
Autotransformer starting of motors is used widely in starting large industrial motors due to its advantage of providing the highest…