开关设备
kāi guān shè bèi
Equipment used to control, protect, and isolate electrical systems
Switchgear
断路器
duàn lù qì
Automatically interrupts current during overloads or faults
Circuit breaker
空气断路器
kōng qì duàn lù qì
Breaker using air to extinguish the arc
Air circuit breaker (ACB)
塑壳断路器
sù ké duàn lù qì
Compact breaker for industrial distribution systems
Molded case circuit breaker (MCCB)
微型断路器
wēi xíng duàn lù qì
Small breaker used in low-current circuits
Miniature circuit breaker (MCB)
真空断路器
zhēn kōng duàn lù qì
Uses vacuum to extinguish electrical arcs
Vacuum Circuit Breaker (VCB)
六氟化硫断路器
liù fú huà liú duàn lù qì
Uses SF6 gas for arc suppression in high-voltage systems
SF6 circuit breaker
保险丝
bǎo xiǎn sī
Protects circuits by melting during overcurrent
Fuse
隔离开关
gé lí kāi guān
Isolates equipment from power for maintenance
Disconnect switch
负荷开关
fù hè kāi guān
Switch designed to interrupt normal load current
Load break switch
母线
mǔ xiàn
Metal conductor distributing power within switchgear
Bus bar
母联
mǔ lián
Connects two bus sections together
Bus coupler
接地开关
jiē dì kāi guān
Grounds equipment for safety during maintenance
Ground switch
保护继电器
bǎo hù jì diàn qì
Detects faults and triggers breakers
Protective relay
过流继电器
guò liú jì diàn qì
Trips when current exceeds safe limits
Overcurrent relay
差动继电器
chā dòng jì diàn qì
Detects imbalance between input and output currents
Differential relay
电流互感器
diàn liú hù gǎn qì
Reduces high current for measurement/protection
Current transformer (CT)
电压互感器
diàn yā hù gǎn qì
Reduces voltage for metering/protection
Voltage transformer (VT/PT)
计量
jì liàng
Monitoring electrical parameters
Metering
保护柜
bǎo hù guì
Cabinet containing protective relays and controls
Protection Panel
控制柜
kòng zhì guì
Cabinet used for system control
Control panel
电机控制中心
diàn jī kòng zhì zhōng xīn
Centralized motor control assembly
Motor control center (MCC)
配电盘
pèi diàn pán
Main distribution board for electrical power
Switchboard
配电箱
pèi diàn xiāng
Distributes electricity to branch circuits
Distribution panel
馈线
kuì xiàn
Main conductor supplying downstream loads
Feeder
进线
jìn xiàn
Main power entering the switchgear
Incoming line
出线
chū xiàn
Power leaving the switchgear to loads
Outgoing line
电弧闪光
diàn hú shǎn guāng
Dangerous energy release caused by electrical arcing
Arc flash
灭弧室
miè hú shì
Device used to extinguish electrical arcs
Arc chute
联锁
lián suǒ
Safety mechanism preventing incorrect operation
Interlock
抽屉式断路器
chōu tì shì duàn lù qì
Breaker that can be removed for maintenance
Draw-out breaker
固定式断路器
gù dìng shì duàn lù qì
Permanently mounted breaker
Fixed breaker
同步
tóng bù
Matching voltage/frequency before connecting systems
Synchronization
单线图
dān xiàn tú
Simplified electrical system drawing
Single-line diagram
绝缘
jué yuán
Material preventing unintended current flow
Insulation
介电强度
jiè diàn qiáng dù
Maximum electric field insulation can withstand
Dielectric strength
额定电压
é dìng diàn yā
Maximum designed operating voltage
Rated voltage
额定电流
é dìng diàn liú
Maximum continuous operating current
Rated current
分断能力
fēn duàn néng lì
Maximum fault current breaker can safely interrupt
Interrupting capacity
上锁挂牌
shàng suǒ guà pái
Safety procedure preventing energization during maintenance
Locked out/Tag out (LOTO)
Zuletzt geändertvor 13 Tagen