151 + Electrical Long Form
- ICDP –Iron Clad Double Pole switch
- DB – Distribution Box
- ACB – Air Circuit Breaker
- ICTPN – Iron Clad Triple Pole Switch with Neutral
- LCB – Local Control Board
- OCB – Oil Circuit Breaker
- ICTP – Iron Clad Tripple Pole switch
- MCB – Miniature Circuit Breaker
- MCCB – Molded Case Circuit Breaker
- ABCB – Air Blast Circuit Breaker
- ELCB – Earth Leakage Circuit Breaker
- DP – Double Pole
- LED – Light Energy Diode
- LDR – Light Dependent Resistor
- LOPT –Line Output Transformer
- SP – Single Pole
- TP – Tripple Pole
- GOD – Gang Operation System
- VIR – Vulcanised India Rubber
- PVC – Poly Vinyl Chloride
- HRC – High Rupture Capacity / High Rupturing Capacity
- LC – Led Covered
- PILC – Paper Insulated Lead Covered Cable
- AC – Alternating current
- CTS – Cable Tyre Sheathed
- Online Mock Test- Click Here
- DC – Direct current
- a – Area
- l – Lenth
- P – Positive
- N – Negative
- VD – Voltage Drop
- EMF – Electromotive Force
- E – Earthing
- PD – Potential Difference
- L – Line
- MMF – Magneto Motive Force
- P. M. M. C. – Permanent Magnet Moving Coil
- H. P. M. C. – High Pressure Mercury Vapor
- HPSV – High Pressure Sodium Vapor
- XL – Inductive Reactance
- XC – Capacitive Reactance
- E.C.E. – Electrochemical Equivalent
- P. F.- Power Factor
- Ns – Stator Speed
- D.O.R. – Direction of Rotation
- LCS – Local Control Station
- NR – Rotor Speed
- D.O.L. – Direct On Line
- AAAC – All Alloy Aluminium Conductors
- M.A. Type – Mercury Argon
- M.A.T. Type – Mercury Argon Tungsten Lamp
- AAC – All Aluminium Conductors
- C – Capacitance (in Farad)
- G – Electrical Conductance
- Eb – Back EMF
- A.C.S.R. – Aluminium Conductors Steel Reinforced
- BHP – Brake Horsepower
- V – Volts
- A – Ampere
- M – Motor
- E – Earth
- A/C – Air Conditioner
- LA – Light Arrester
- KA – Kilo Ampere
- HV – High Volt
- LV – Low Volt
- kV – Kilovolt
- MV – Megavolt
- HT – High Tension
- LT – Low Tension
- kVA – Kilovolt Ampere
- ISO – Isolator
- NVC – No Volt Coil
- OLR – Overload Relay
- SS – Salter Switch
- OLP – Overload Protection
- TS – Thermo Switch
- TR – Transformer
- PT – Pressure Transmitter
- DPT – Differential Pressure Transmitter
- FT – Flow Transmitter
- PCC – Power Control Centre
- MCC – Motor Control Centre
- RCCB – Residual Current Circuit Breaker
- MPCB – Motor Protection Circuit Breaker
- MCB – Miniature Circuit Breaker
- VCB – Vacuum Circuit Breaker
- PLC – Programmable Logic Controller
- DCS – Distributed Control System
- HMI – Human Machine Interface
- RIO – Remote Input Output
- DO Fuse – Drop Out Fuse
- RTU – Remote Terminal Unit
- EOCR – Electronic Over Current Relay
- JB – Junction Box
- UPS – Uninterrupted Power Supply
- TB – Terminal Block
- LCS – Local Control Station
- CT – Current Transformer
- PT – Potential Transformer
- FRLS – Fire Resistance Low Smoke
- EPR – Ethylene Propylene Rubber
- SCIM – Squirrel Cage Induction Motor
- SRIM – Slip Ring Induction Motor
- OLTC – On Load Tap Changer
- NO – Normally Opened
- NC – Normally Closed
- RTD – Resistance Temperature Detector
- BS – British Standards
- IS – Indian Standards
- RPM – Revolution Per Minute
- LDB – Lighting Distribution Board
- PDB – Power Distribution Board
- SLDB – Secondary Lighting Distribution Board
- EMLDB – Emergency Lighting Distribution Board
- MLDB – Main Lighting Distribution Board
- ACDB – Alternating Current Distribution Board
- MPDB – Main Power Distribution Board
- ACVS – Air Conditioning and Ventilation System
- HART – Highway Addressable Remote Transducer
- ACSR – Aluminium Cable Steel Reinforced
- SCADA – Supervisory Control and Data Acquisition
- VVVF – Variable Voltage Variable Frequency
- RCBO – Residual Current Circuit Breaker with Overcurrent Protection
- AH – Ampere Hour Capacity of Batteries
- AVR – Automatic Voltage Regulator
- AWA – Aluminium Wire Armour
- B – Electrical Susceptance
- BAR – Pressure in Atmosphere
- BIL – Breakdown Insulation Level
- VSD – Variable Speed Drive
- ZSS – Zero Speed Switch
- PCS – Pull Cord Switch
- FDA – Fire Detection And Alarm
- TEFC – Total Enclosed Fan Cooled
- TESC – Totally Enclosed Surface Cooled
- ISMC – Indian Standard Medium Weight Channel
- GI Busbar – Galvanized Iron Bus Bar (For Earthing)
- SPNDB – Short Circuit Protection Neutral Distribution Board
- TPNDB – Three Phase and Neutral Distribution Board
- LOC – Local Operation
- LPG – Liquefied Petroleum Gas
- LSS – Load Shedding System
- NER – Neutral Earth Resistor
- PCC – Point of Common Connection
- MW – Megawatts
- mA – Current in Milliamperes
- LNG – Liquefied Natural Gas
- LMS – Load Management System
- LHS – Left Hand Side
- LF – Low Frequency
