
Explore transformer control panel schematics for 132 kv by 11 kv 20 by 26 mva, detailing interlocks, close-blocking circuits, and bus power, line isolators, and breaker control.
Explore the general arrangement drawing for the transformer control panel, detailing components, wire thickness and colors, terminal connections, alarm indicators, and circuit markings.
Explore the single line diagram for a transformer feeder, detailing the base bar, single breaker scheme, switches, control circuitry, and line differential protection with metering.
Trace the 220 V DC supply from the source to the f201 and f202 subs, and map the separate control and alarm loops and MCP circuitry across panels.
Demonstrates a two-dc-supply changeover scheme for a transformer control panel, showing how supply one and supply two feed the MSB via a contractor with automatic switching.
Explain DC loop supervision using the F27 voltage monitoring relay at the end of the loop, combining MSB status with loop supervision for control and alarm loops and fail indications.
Explore how a circuit breaker control circuit switches between mimic, local, and remote panels, sending open and close commands while interlocks and lockouts prevent unsafe closures.
Master opening and closing operations of the transformer side isolator, earth switch, and vt link using mimic-based control, with interlocking inside the e02 panel.
Explore remote indication principles using a discrepancy switch to reveal differences between equipment and control switch statuses, triggering flicker signals via the K10 and flicker relays.
Learn how a control circuit uses a relay to multiply a single field contact, generating two outputs, 40.2 and 44.3, for alarm circuit and protection panel.
Dear All,
Welcome to the course of understanding schematics of "Transformer Control Panel Schematics". This course covers complete schematics of 132 kV transformer control panel.
Trainer Introduction:
Your trainer brings over 21 years of experience in operation & maintenance, erection, testing, project management, consultancy, supervision, substation automation, SCADA, and commissioning. With a background spanning power plants, high voltage substations, and HVDC installations, he has worked with renowned organizations such as Siemens Saudi Arabia. He has been involved in over 20 high-voltage substation projects across Pakistan and Saudi Arabia.
His expertise encompasses a wide range of areas including protection systems, substation automation systems, design, testing, and commissioning of power generation systems, high voltage switchgear, protection relays, and control schemes. He has a proven track record of leading testing and commissioning teams for implementing electrical infrastructure projects for industrial clients, including steel and petrochemical industries.
In this training, we have selected the schematics of 20/26MVA power transformer. This is a control panel that is installed at the control room at remote location.
This training is designed over as schematics, that will also be available to download.
Following topics are covered in this training:
Learn Single line diagram of transformer feeder
General arrangement of the panel, explained how the panel is designed
Master different symbols used in the schematics
AC Supply distribution
Heating and lighting circuit
AC loop
DC distribution
DC loop
DC & AC supply supervision circuit
AC supply fail circuit
DC supply fail circuit
Control and alarm supplies in panel
DC supply changeover scheme
Open & closing circuit of Circuit Breaker
Open and closing circuit of line isolator, busbar isolator, earth switch, VT link
Remote position indication schematics
Discrepancy switch & how it operats
Flicker relay circuit
Contact multiplication circuit
Annunciation circuit
Metering circuit
Supervision lamps
General arrangements side and rear views.
Thanks