Symbol set
Electrical
Breakers, contacts, relays, transformers, motors and generators. Measuring instruments, semiconductors, busbars, cables and earthing.
Grouped by category. Free symbols are marked.
Search this setRadio and sensors
Rotating machines
- Motor / generator (reversible machine)Free
- Diesel generator set
- Wind turbine, onshore
- Wind turbine, offshore
- Motor (general)
- AC motor
- DC motor
- 3-phase induction motor
- 3-phase synchronous motor
- Stepper motor
- Servo motor
- Universal motor
- Linear motor
- Generator (general)
- AC generator
- DC generator
- 3-phase generator
- 3-phase synchronous generator
- Tachogenerator
- Wind turbine generator
- Hydro generator
- Motor on drive
- Direct-on-line starter
Wires and links
Switching devices
Contacts and operators
- NO contactFree
- NO contact, push-button
- NO contact, pull
- NO contact, rotary knob
- NO contact, key
- NO contact, limit / cam
- NO contact, proximity
- NO contact, thermal
- NO contact, emergency stop
- NC contact
- NC contact, push-button
- NC contact, pull
- NC contact, rotary knob
- NC contact, key
- NC contact, limit / cam
- NC contact, proximity
- NC contact, thermal
- NC contact, emergency stop
- Changeover contact
- Changeover contact, push-button
- Changeover contact, rotary knob
- Changeover contact, limit / cam
Coils and relays
Protection relays
Signalling
Passive
Semiconductors
Sources
Converters
Transformers
- Two-winding transformerFree
- Transformer Dyn (delta-wye neutral)
- Transformer Yd
- Transformer YNy
- Transformer Dd
- Transformer Yy
- Transformer Yz (zigzag)
- Transformer Dz
- Three-winding transformer
- Autotransformer
- Variable transformer (variac)
- Transformer with tap changer
- Current transformer
- Voltage transformer
- Zero-sequence CT