Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Single tube rectifier energy consumption brake line

Electromagnetic lock brake control circuit

Lighting switch power saving control circuit

Robot wireless remote control circuit

Secondary circuit diagram of voltage transformer using V/V-▲ connection

110kV Bus block spacing secondary circuitBB:Microcomputer line protection measurement and control deviceSFA:Selector switchSFB:Selector buttonPGW:White lightPGG:Green lightPGR:RedlightQB:Travel switchTA:Current transformer

Secondary circuit diagram of 110kV power supply incoming lineBB:Microcomputer line protection measurement and control deviceSFA:Selector switchSFB:Selector buttonPGW:White lightPGG:Green lightPGR:RedlightQB:Travel switch

The sequence of operations in disconnecting Gas Insulated Switchgear (GIS) is critical to ensure safety and prevent damage to the equipment. Generally, the correct order when disconnecting the power supply in a GIS involves first opening the circuit breaker and then operating the disconnector (also known as an isolator). Here is a detailed explanation:Correct Operational Sequence Open the Circuit Breaker The circuit breaker is the primary device used to interrupt the load current. Before disco

Secondary circuit diagram of power supply entry circuit breaker cabinetBB:Microcomputer line protection measurement and control deviceSFA:Selector switchPGW:White lightPGG:Green lightPGR:RedlightFU:FuseXG:Connecting pieceV:Rectifier bridgeCBO:Opening coilQA:Circuit breakerBG:Travel switchSFU:Transfer switch

I. Preliminary Preparations(1) Understand three-phase motors and AC/DC convertersThree-phase motorThree-phase motors have star and delta connections. The star connection involves connecting x, y, and z to the ends of three sets of windings, drawing a neutral line from the connecting point, and leading out three lines from the other end of the coil winding to A, b, and c, forming a three-phase four-wire system; the delta connection involves connecting the power supply or load in sequence, without