Here you can find basic abbreviation which generally use in Electrical related work, here you easily find because there all abbreviation are in order.

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Basic Electrical Abbreviations and full form

Short form

Full form

A Ampere
AAAC All Aluminum Alloy Conductor
AAC All Aluminum Conductor
AC Alternating Current
ACB Air Circuit Breaker
ACDB Alternating Current Distribution Board
ACSR Aluminum Conductors Steel Reinforced
ADC Analog To Digital Converter
AFC Automated Frequency Control
AFCI Arc Fault Circuit Interrupted
AH Ampere Hour
AHU Air Handing Unit
AIC Ampere Interrupting Capacity
AL Aluminum
ALCI Appliance Leakage Current Interrupter
APFC Automatic Power Factor Control
ATS Automatic Transfer Switch
BLACM Brushless AC Motor
BLDCM Brushless DC Motor
C Capacitor
CKT Circuit
CPT Control Power Transformer
CT Current Transformer
DAC Digital To Analog Converter
DB Distribution Board
db Decible
DC Direct Current
DCDB Direct Current Distribution Board
DOLS Direct On Line Starter
DP Double Pole
DPR Dividing Pulse Relay
EC Electronic Commutator
EHT Extra High Tension
ELCB Earth Leakage Circuit Breaker
EST Extra Super Tension
F Fuse
FBT Flyback Transformer
FLA Full Load Amperes
FMC Flexible Metal Conduit
GDT Gas Discharge Tube
GFCI Ground Fault Circuit Interrupte
GFI Ground Fault Interrupter
GIS Gas Insulated Switchgear
GND Ground
GO Gang Operated
HT High Tension
HZ Hertz
I Current
ICDB Iron Clad Distribution Board
ICSP In Circuit Serial Programming
ICTP Iron Clad Triple Pole
IG Isolated Ground
IGBT Insulated-gate Bipolar Transistor
IMC Intermediate Metal Conduit
IPMSM  Interior Permanent Magnet Synchronous Motor
KV Kilo Volts
KVA Kilo Volt Amperes
Kvar Kilo Volt Amperes Reactive
KW  Kilo Watt
KWH  Kilo Watt Hour
L Inductance
LA Lightning Arrester
LED Light Emitting Diode
LDRLight Dependent Resistor
LOPT Line Output Transformer
LPS Lightning Protection System
LRA Locked Rotor Amperes
LT (1) Low Tension
(2) Level Transmitter
LVDT Linear Variable Differential Transformer
LSR Load sharing system
LV Low voltage
LUX Level of illumination
MCB Miniature Circuit Breaker
MCC Miniature Circuit Breaker
MCCB Moulded Case Circuit Breaker
MCP Motor Circuit Protection
MF Multiplying Factor
MISOMaster Input Slave Output
MOSI Master Output Slave Input
MOV Metal oxide varistor
MS Main Switch
MVA Mega Volt Amperes
Mvar Mega Volt Amperes Reactive
MW Megawatt
MMF Magneto motive force
NC Normally Closed
NCT Neutral Current Transformer
NL Neutral Link
NO Normally Open
OCTC  On-circuit Tap Changer
OLTC On-load Tap Changer
P Pole
PB Push Button
PCC Power Control Centre Panel
PDP Power Distribution Panel
PM Permanent Magnet
PMSM Permanent Magnet Synchronous Motor
PT Potential Transformer
PVC  Poly Vinyl Chloride
Q Charge
R Resistance
RCBO Residual Current Circuit Breaker with Overload Protection
RCCB Residual Current Circuit Breaker
RCD Residual Current Device
RFID Radio Frequency Identification
RLA Rated Load Amperes
RMC Rigid Metal Conduit
RMG Ring Main Gear
RMU Ring Main Unit
RNC Rigid Non Metallic Conduit 
RPR Reverse Power Relay
SB Switch Board
SCIM Squirrel Cage Induction Motor
SCK Serial Clock
SCR Silicon Controlled Rectifier
SFU Switch Fuse Unit
SP Single Pole
SPDT Single Pole Double Throw
SPI Serial Peripheral Interface
SPMSMSurface Permanent magnet Synchronous Motor
SPSTSingle Pole Single Throw
SPTStranded Parallel Thermoplastic
SRMSwitched Reluctance Motor
SSRSolid State Relay
STSuper Tension
STRStatimax Trip Release
SW Switch
SWGStandard Wire Gauge
SyRMSynchronous Reluctance Motor
TTLTransistor-Transistor Logic
TMCBThermal Magnetic Circuit Breaker
TPDTTriple Pole Double Throw
TPICTriple Pole Iron Clad
TPSTriple Pole Switch
TPSTTriple Pole Single Throw
TVS-DiodeTransient Voltage Suppression Diode
UARTUniversal Asynchronous Receiver and Transmitter
UDSUniform Drawing System
UGUnder Ground
USARTUniversal Synchronous and Asynchronous Receiver and Transmitter
USBUniversal Serial Bus
VAVolt Ampere
VarVolt Ampere Reactive
VCBVacuum Circuit Breaker
VFDPVariable Frequency Drive Panel
VIRVulcanized Indian Rubber
VTVoltage Transformer
Wwatt
WRIMWound Rotor Induction Motor
WRSMWound Rotor Synchronous Motor

➤ Control Source Full Forms

         CCCS                      Current Control Current Source           
CCVSCurrent Control Current Source
VCCS Voltage Control Current Source
VCVS Voltage Control Voltage Source

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