Important Electrical Abbreviations with Full forms

some important electrical abbreviations and their full forms:

1. AC - Alternating Current
2. DC - Direct Current
3. HVAC - Heating, Ventilation, and Air Conditioning
4. AWG - American Wire Gauge
5. kWh - Kilowatt-hour
6. Amp - Ampere
7. V - Voltage
8. Hz - Hertz
9. Ohm - Ohm's Law
10. VA - Volt-Ampere
11. RMS - Root Mean Square
12. PCB - Printed Circuit Board
13. LED - Light Emitting Diode
14. IC - Integrated Circuit
15. PCB - Printed Circuit Board
16. UPS - Uninterrupted Power Supply
17. EMI - Electromagnetic Interference
18. EMC - Electromagnetic Compatibility
19. RFI - Radio Frequency Interference
20. GFCI - Ground Fault Circuit Interrupter
21. AFCI - Arc Fault Circuit Interrupter
22. MCCB - Molded Case Circuit Breaker
23. MCB - Miniature Circuit Breaker
24. SPD - Surge Protective Device
25. CT - Current Transformer
26. PT - Potential Transformer
27. SLD - Single Line Diagram
28. MCC - Motor Control Center
29. DOL - Direct-On-Line
30. PLC - Programmable Logic Controller
31. SCADA - Supervisory Control and Data Acquisition
32. DCS - Distributed Control System
33. ELCB - Earth Leakage Circuit Breaker
34. RCBO - Residual Current Breaker with Overcurrent Protection
35. PPE - Personal Protective Equipment
36. A-Ampere
37. AB Switch- Air Break Switch
38. ACCB- Air Case Circuit Breaker
39. ACDB-Alternating Current Distribution Board
40. AFC-Automated Frequency Control
41. AFC-Available Fault Current
42. AFCI-Arc Fault Circuit Interrupter
43. AH-Ampere Hour
44. AHU-Air Handling Unit
45. AIC-Ampere Interrupting Capacity
46. APFC-Automatic Power Factor Control
47. ATS-Automatic Transfer Switch
48. BLDC-Brushless DC
49. BLDM-Brushless DC Motor
50. DB-Distribution Board
51. DCDB-Direct Current Distribution Board
52. DO Fuse- Drop Out Fuse
53. DOL-Direct ON Line
54. DP-Double Pole
55. DPIC-Double Pole Iron Clad
56. EHT-Extra High Tension
57. ELCB-Earth Leakage Circuit Breaker
58. FBT-Flyback Transformer
59. GFCI-Ground Fault Circuit Interrupter
60. GFI-Ground Fault Interrupter
61. GIS-Gas Insulated Switchgear
62. GO-Gang Operated
63. HT-High Tension
64. ICDB-Iron Clad Distribution Board
65. IMC-Intermediate Metal Conduit
66. IPMSM-Interior Permanent Magnet Synchronous Motor
67. LA-Lightning Arrester
68. LOPT-Line Output Transformer
69. LPS-Lightning Protection System
70. LRA-Locked Rotor Amperes
71. LT-Low Tension
72. LVDT-Linear Variable Differential Transformer
73. MCB-Miniature Circuit Breaker
74. MCC-Motor Control Center Panel
75. MCCB-Moulded Case Circuit Breaker
76. MCP-Motor Circuit Protection
77. NC-Normally Closed
78. NCT-Neutral Current Transformer
79. NO-Normally Open
80. ONCT- On-circuit Tap Changer
81. OLTC- On-load Tap Changer
82. PB-Push Button
83. PCC-Power Control Centre Panel
84. PDP-Power Distribution Panel
85. RCBO-Residual Current Circuit Breaker with Overload Protection
86. RCCB-Residual Current Circuit Breaker
87. RFID-Radio Frequency Identification
88. RLA-Rated Load Amperes
89. RMC-Rigid Metal Conduit
90. RMG-Ring Main Gear
91. RMU-Ring Main Unit
92. RNC-Rigid Non Metallic Conduit
93. RPR-Reverse Power Relay
94. SB-Switch Board
95. SCIM-Squirrel Cage Induction Motor
96. SFU-Switch Fuse Unit
97. SPDT-Single Pole Double Throw
98. SPST-Single Pole Single Throw
99. SSR-Solid State Relay
100. ST-Super Tension
101. SWG-Standard Wire Gauge
102. TMCB-Thermal Magnetic Circuit Breaker
103. TPIC-Triple Pole Iron Clad
104. TPS-Triple Pole Switch
105. TRS-Tough Rubber Sheathed
106. UART-Universal Asynchronous Receiver and Transmitter
107. UDS-Uniform Drawing System
108. UG-Under Ground
109. USART-Universal Synchronous and Asynchronous Receiver and Transmitter
110. VCB-Vacuum Circuit Breaker
111. VFD-Variable Frequency Drive
112. XLPE- Cross linked Polyethylen