Find out the meaning of all the letters of electrician?

Electrical common sense-the meaning of all letters;

Time relay KT

Contactor KM

Intermediate relay KA

Circuit breaker QF

Thermal relay FR

Indicator lamp HL

Isolating switch QS

Current transformer TA

Voltage transformer TV

Ac communication

neutral line

PE protective grounding

PEN protects the ground wire and neutral wire.

D differential

PU ungrounded protection

DC·DC

E grounding

RES standby

Noise-free grounding

M midline

Ammeter PA

Voltmeter PV

Active watt-hour meter PJ

Reactive watt-hour meter PJR

Frequency table PF

Phase table PPA

Maximum demand meter (load monitor) PM

PPF power factor table

Active power meter PW

Reactive power meter PR

Reactive ammeter parameters

Sound signal HA

Optical signal HS

Indicator lamp HL

Red light HR

Green lamp mercury

Yellow lamp HY

Hemoglobin blue

White light hardware

Connector XB

Plug XP

Socket XS

Terminal board XT

Wire, cable, bus w

Dc bus WB

Plug-in (feed) bus WIB

Power branch WP

Lighting branch WL

Emergency lighting branch WE

Power trunk line WPM

Lighting suitcase WLM

Emergency lighting trunk WEM

Sliding contact line WT

Turn off the minibus WCL

Control WC of passenger car

Signal small bus WS

Flash minibus WF

Accident sound minibus WFS

Preview audio minibus WPS

Small voltage bus WV

Emergency lighting minibus WELM

Lightning arrester f

Fuse FU

Fast fuse FTF

Drop fuse FF

Voltage limiting protection device FV

Capacitor c

Power capacitor CE

Forward button SBF

Reverse button SBR

Stop button SBS

Panic button SBE

Test button SBT

Reset button SR

Limit switch SQ

Proximity switch SQP

Manual control switch

Time control switch SK

Liquid level control switch SL

Humidity control switch SM

Pressure control switch SP

Speed control switch SS

Temperature control switch, auxiliary switch ST

Voltmeter changeover switch SV

Ammeter changeover switch SA

Rectifier u

Silicon controlled rectifier

The control circuit has a rectifier VC with power supply.

Frequency converter ultrafiltration

Converter UC

Inverter user interface

Motor m

Asynchronous motor MA

Synchronous motor MS

Dc motor MD

Wound rotor induction motor MW

Squirrel cage motor MC

Electric valve YM

Solenoid valve YV

Fire damper YF

Smoke exhaust valve YS

Electromagnetic lock YL

Trip coil YT

Closed coil YC

Pneumatic actuators YPA, Asia

Electric actuator blade

Heating device (electric heating) FH

Illuminating lamp (light emitting device)

Air-conditioned electric vehicle

Electric heater heating element EE

Inductor coil, reactor l

Low frequency excitation coil

Arc suppression coil LA

Filter capacitor L 1

Resistor r

Potentiometer RP

Thermistor RT

Photosensitive resistor RL

Rheostat RPS

Grounding resistance RG

Discharge resistance RD

Starting rheostat RS

Radio frequency sensitive rheostat

Current limiting resistance RC

Photoelectric cell, thermoelectric sensor b

Pressure converter BP

Temperature converter BT

Speed converter BV

Time measuring sensor BT 1, black

Liquid level measuring sensor BL

Temperature measuring sensors BH, BM

(The above is excerpted from Baidu Library: Common Sense of Electricians-All Letters Represents).