switchgear
Circuit protection equipment
Switchgear is electrical equipment used to control, protect, and isolate parts of a power system.
It includes switches, fuses, and circuit breakers housed together, typically in industrial or utility settings: The maintenance crew inspected the switchgear before restoring power.
The term usually refers to high-voltage applications rather than residential circuits.
Power distribution point
- power distributionElectrical supply network
- electrical panelCircuit breaker housing
- PLCIndustrial automation computer
- power systemsInfrastructure for energy delivery
low voltage · high voltage · feeder · busway · industrial power
Automatic power cutoff device
- transformerVoltage-altering electrical device
- relayStage-by-stage transmission
- disconnectTo break a connection
- fuseProtective melting wire
Employer-imposed work stoppage
- tagoutContact that retires baserunner
- interlockJoin by overlapping
- enclosureConfined, bordered space
- clearancePermitted passage or approval
dielectric · PPE · safety procedures · verification · access control
Imperfection or blame
- overloadBurden beyond capacity
- short-circuitUnintended electrical path
- tripPlanned travel somewhere
- isolationComplete separation from others
surge protection · grounding · overcurrent · coordination · selectivity · discrimination · thermal protection
substation
Power distribution point
- power distributionElectrical supply network
- electrical panelCircuit breaker housing
- PLCIndustrial automation computer
power systems · low voltage · high voltage · feeder · busway · industrial power
circuit breaker
Automatic power cutoff device
- transformerVoltage-altering electrical device
- relayStage-by-stage transmission
- disconnectTo break a connection
fuse · insulator · voltage regulator · contactor · isolator
lockout
Employer-imposed work stoppage
clearance · dielectric · PPE · safety procedures · verification · access control
fault
Imperfection or blame
- overloadBurden beyond capacity
- short-circuitUnintended electrical path
- tripPlanned travel somewhere
isolation · surge protection · grounding · overcurrent · coordination · selectivity · discrimination · thermal protection
- electricityelectricity, battery, batteries, wire, wires
- electrical systemswiring, circuits, voltage, transformers, electricity
- AC electricityAC, alternating current, hertz, sine wave, voltage
- building systemsHVAC, plumbing, electrical systems, heating, cooling
- capital equipmentmachinery, heavy equipment, factories, generators, turbines
- electrical equipmentelectric motors, transformer, transformers, generators, circuit breaker
switchgearwiring
Installed electrical conductors
cables · conductors · transmission lines · power lines · electrical wiring
gear, switch, switching, geared, switches, gearing, gearbox, switchboard, switchable