ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS

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ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS
ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS

ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS

ELECTRICAL SYMBOL LEGEND
SINGLE LINE
– LOAD BREAK SWITCH
– CURRENT TRANSFORMER
– C/W RATIO
– AND QUANTITY
– DIGITAL METERING
– SHUNT TRIP CIRCUIT BREAKER
– FUSED CUTOUT SWITCH
– UNFUSED DISCONNECT SWITCH
– DRAW OUT CIRCUIT BREAKER
– CIRCUIT BREAKER
– DISTRIBUTION TRANSFORMER
– FUSED DISCONNECT SWITCH
– LIGHTNING ARRESTER
– FRAME SIZE INDICATION
– POWER CIRCUIT BREAKER C/W
– SURGE ARRESTER
– TRANSFORMER
– ZERO SEQUENCE CURRENT
– POTENTIAL TRANSFORMER C/W
– VOLTAGE RATIO AND QUANTITY
– CAPACITOR C/W KVAR RATING
– THERMAL OVERLOAD DEVICE
– CONTACT
– LIMITERS
– CIRCUIT BREAKER C/W CURRENT
– FUSE
– SPECIAL OUTLET
– HARMONIC FILTER kW RATED
– ELECTRIC MOTOR C/W kW RATING
– STAB TYPE DISCONNECT
– TERMINAL
– WEATHERHEAD
– CABLE TERMINATION
– BUS BAR WITH CONNECTION
– CONDUCTOR
LINE SYMBOLS
– OVERHEAD CONDUCTOR
– KEY INTERLOCKING
– EQUIPMENT OUTLINE
– UNDERGROUND CONDUCTOR
– TRIPPING OR INTERLOCKING CIRCUIT
– DELTA
– GROUNDED NEUTRAL
– WYE OR STAR WITH SOLID
– CURRENT INDICATED
– WYE OR STAR WITH RESISTANCE
– GROUNDED NEUTRAL AND MAXIMUM
– FEEDER IDENTIFICATION SYMBOL
– 3 PHASE TRANSFORMER CONNECTION SYMBOLS
– THERMISTOR
– RESISTOR
– S – STALL. G – GROUND. T – TEMPERATURE.
– BY A LETTER SUFFIX. e. g.
– SPECIALIZED RELAY FUNCTION ARE INDICATED
– SYNCHRONIZATION CHECK RELAY
– REVERSE POWER RELAY
– AC THERMAL OVERLOAD RELAY
– INCOMPLETE SEQUENCE RELAY
– PHASE SEQUENCE RELAY
– PHASE BALANCE CURRENT RELAY
– LOSS OF FIELD PROTECTION RELAY
– DIRECTIONAL POWER RELAY
– AC UNDER VOLTAGE
– DIFFERENTIAL CURRENT RELAY
– LOCKOUT RELAY
– PHASE ANGLE MEASURING RELAY
– AC OVER VOLTAGE RELAY
– AC CIRCUIT BREAKER
– UNDER FREQUENCY RELAY
– SUDDEN PRESSURE RELAY
– AC INSTANTANEOUS OVERCURRENT
– RELAY
– AC TIME DELAY OVERCURRENT RELAY
– SWITCH GEAR DEVICE NUMBER AND FUNCTIONS
– SCHEMATIC
– MOMENTARY PUSHBUTTON (N.O.)
– MOMENTARY PUSHBUTTON (N.C.)
– P (PRESSURE), ETC.
– FOURTH LETTER:
– SECOND LETTER:
– O (ON)
– VARIABLE, e.g. L (LEVEL),
– H (HIGH) OR L (LOW) OPTIONA
– C (CLOSE) OR 0 (OPEN)
– SWITCH SYMBOL
– SWITCH FUNCTION DESCRIPTOR, PLACED BELOW
– LIMIT SWITCH (N.O.)
– VIBRATION SWITCH (N.O.)
– TEMPERATURE SWITCH (N.O.)
– PRESSURE SWITCH (N.O.)
– FLOW SWITCH (N.O.)
– LEVEL SWITCH (N.O.)
– LIMIT SWITCH (N.C.)
– VIBRATION SWITCH (N.C.)
– TEMPERATURE SWITCH (N.C.)
– PRESSURE SWITCH (N.C.)
– FLOW SWITCH (N.C.)
– LEVEL SWITCH (N.C.)
– TIME DELAY CLOSE ON DE-ENERGIZE
– N.C. CONTACT
– N.O. CONTACT
– TIME – DELAY RELAY (TYP.) COIL
– MOTOR CONTROL RELAY (TYP.) COIL
– CONTROL RELAY 284 (TYP.) COIL
– TIME DELAY OPEN ON DE-ENERGIZE
– TIME DELAY OPEN ON ENERGIZE
– TIME DELAY CLOSE ON ENERGIZE
– FUSE
– FIELD WIRING
– ANEL WIRING
– BREAKER
– CONTROL PANEL TERMINAL
– MCC TERMINAL
– FIELD TERMINAL
– SWITCH GEAR
– FIELD JUNCTION BOX TERMINAL
– EQUIPMENT CONTROL PANEL
– 3 POSITION MAINTAINED SELECTOR SWITCH
– 2 POSITION MAINTAINED SELECTOR SWITCH
– THIRD LETTER:
– FIRST LETTER:

ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS
ELECTRICAL LEGEND SINGLE LINE & SCHEMATIC SYMBOLS
ELECTRICAL-LEGEND-SINGLE-LINE-SCHEMATIC-SYMBOLS.dwg
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