OLTC (Basic knowledge)

Selector switch, diverter switch, and regulating winding

Tap changer head, oil compartment, tap changer insert (correct)

Transformer core, bushings, and cooling system

Buchholz relay, conservator tank, and pressure relief device

To redirect the flow of current to different tap positions (correct)

To control the circuit breaker operation

To provide cooling to the transformer core

To regulate the output voltage

Selector Switch = Selects the tap position Tap Changer Controller = Controls the tap-changing process Motor Drive = Drives the tap-changing mechanism Transition Reactor = Reduces transient voltage during tap changing

<p>Winding Selector = Selects the winding for tap-changing Voltage Regulator = Regulates the output voltage Bypass Switch = Bypasses the tap changer for maintenance Diverter Switch = Redirects the load current during tap changing</p> Signup and view all the answers

<p>Tap Position Indicator = Indicates the current tap position Control Cubicle = Houses the tap changer control equipment Oil Tank = Contains the insulating and cooling oil Buchholz Relay = Protects the transformer from internal faults</p> Signup and view all the answers

<p>Selector switch, diverter switch, and tap-changing resistor</p> Signup and view all the answers

<p>Diverter switch</p> Signup and view all the answers

<p>To limit the inrush current during tap changing</p> Signup and view all the answers