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Medium & High Voltage Device

Digital Smart Switch

Digital smart switch is an outdoor vacuum circuit breaker based on advanced electronic sensors and digital technology, which can be used in urban and rural 11kV distribution system. It can be used with feeder terminal unit to realize feeder automation and distribution network automation, support multiple communication modes and protocols, and be suitable for distribution management system. The switch is designed with few moving parts and easy to assemble, which ensures that the circuit breaker has a very high mechanical and electrical life.

l Strong sealing, reliable operation in humid, high cold, high dry heat, high pollution

and other environments

l Polar made of hydrophobic epoxy resin, safe and environmentally friendly

l Multiple protection function and feeder automation mode

l Electronic current/voltage transformers with 0.2 accuracy

l Manual or electric spring operating mechanism

l E2、M2、C2 outdoor vacuum circuit breaker

l High reliability vacuum interrupter

l Pass a full set of type tests
l Line loss measurement function

l Digital signal transmission

l Can be used as recloser or sectionaliser

l Single-line grounding fault detection

Circuit Breaker
Type		ZW32-12/T630-20
Standards		IEC62271-100
Rated voltage	kV	12
Rated insulation voltage	kV	12
Withstand voltage at 50Hz	kV	42
Impulse withstand voltage	kV	75
Rated frequency	Hz	50/60
Rated normal current	A	630
Rated breaking capacity (rated short-circuit breaking current symmetrical)	kA	20
Rated short-time withstand current (4s)	kA	20
Making capacity	kA	50
Opening time	ms	20-40
Arcing time	ms	10-15
Total breaking time	ms	30-65
Closing time	ms	25-45
Rated operating sequence		O-0.3 s-CO-180 s (15 s)-CO
Ambient temperature	°C	-40~+40
Short-circuit breaking operations	n	30
Mechanical endurance (number of close-open operations)		10000
Mechanical mechanism type		Spring mechanism
Operation type		Motorized and manual
Ice covering	mm	10
Pollution level As per IEC 60815		Very Heavy
Ingress protection degree		IP65
Feeder Terminal Unit
Protection relay		HIF detection / Overcurrent / Broken conductor / Under-voltage / Over- voltage / Reclosing / Inrush restraint
Control		Local remote switch / Smart grid automation / HMI
Measurement and monitoring		Power quality / battery voltage / fault recording
Communication		GPRS / Optical fiber / Ethernet / PLC

Size	L×H×W=1058mm×700mm×530mm
Weight:	About 90 kg

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Overview

Key Features

Technical Parameters

Physical Dimension