Product Description1.GeneralZW43R-24 Series Auto Recloser is rated
voltage 24kV, three phase AC 50Hz outdoor distribution equipment.
Mainly used for breaking, closing power system load current,
overload current and short-circuit current. Applicable to
substations and power distribution in industrial and mining
enterprises for protection and control purposes, and frequent
operation place for rural power grids.The circuit breaker has the
features of small size, light weight, anti-condensation,
maintenance and so on. Adapt to bad weather conditions and dirty
environments. The vacuum interrupter of the circuit breaker adopts
solid sealing technology, and the external insulation adopts
silicone rubber sleeve; it has long life and high reliability; the
operating mechanism can adopt a miniaturized, high-reliability
spring mechanism, or an advanced permanent magnet mechanism. It can
also be equipped with isolating switches and intelligent
controllers, and can also be used as a sectioner or recloser to
realize four remote control functions and power distribution
automation.2. Service environment conditionsa) Ambient Air
Temperature: +45ºC ~ -45ºCb) Humidity: Monthly average
humidity 95%; Daily average humidity 90% .c) Altitude above sea
level (Maximum installation altitude): not more than 2500 meters.d)
Ambient air should be not apparently polluted by corrosive and
flammable gas, vapor etc.e) The wind speed is not greater than
35m/s.f ) Anti-contamination level for grade IVg) The earthquake
intensity does not exceed 8 degrees.Mainly Technical
ParametersNo.ItemUnitParameters0Type ZW43R-241Rated
voltagekV242Rated frequencyHz50/603Rated currentA630/12504Rated
short-circuit breaking currentkA20/255Rated peak value withstand
current(peak)kA50/636Rated short time withstand
currentkA20/257Rated short-circuit closing current
(peak)kA50/638Mechanical lifeTimes100009Rated short-circuit
breaking current breaking numberTimes3010Power frequency withstand
voltages (1 min), wet/dry: inter-phase, earth,
fracture kV65/7911Lightning impulse withstand voltage (peak)
inter-phase ,earth, fracturekV125/14512Rated operate
sequence O-0.3-CO-180S-CO13Secondary circuit 1min power
frequency voltageskV2Offering:With optional classes for rated
current range:For 15kV, with Breaking capacity 630A 20kA,800A 20kA
and 1250A 20kA.For 27kV, with Breaking capacity 630A 20kA,800A 16kA
and 1250A 25kA.For 38kV, with Breaking capacity 800A 12.5kA and
1250A 20kA.With optional classes for installation styles:Single
phase, vacuum recloser.Three phase, vacuum recloser.With optional
relay protection curves for user choice:Detail Functions:+with
Instantaneous over current protection, definite time over current
protection and over current protection, over current,three-stage
current protection, low voltage component block, composite voltage
component block or direction component block is available for each
section;+with zero sequence over current protection, E/F, SEF, with
directional model for selection;+with Manual closed accelerating
protection, the breaker will trip fast when it's closed in fault,
and it will trip and lockout,close operation;+with 0 to 4 shots
reclosing, "O-T1-CO-T2-CO-T3-CO-T4-CO-Lockout" , reclosing shots
setting, time delay setting, each section OC protection sequence
coordination;+with two fast+ two delay curve coordination setting
for phase OC protection and EF/SEF protection, 5 model IEC standard
curves+ 5 model ANSI/IEEEC curves;+with cold load protection;+with
hot-line-tag protection;+with two stage negative sequence over
current protection;+with frequency protection and frequency slip
protection;+with over-voltage protection ;+with under-voltage
protection ;(optional)+with residual voltage protection ;+with
frequency protection ;+with relay for additional transformer
protection high temperature input; (optional/definable)+with relay
for additional transformer protection heavy gas input ;
(optional/definable)+Event record, Real-time sync, Real time
checking,+Optional functions:Optional channel for voltage sensor,
Remote operating, Double-PT, protection for CT circuit, intelligent
phone control/blue booth, GPRS communication, Mobile-phone
message/GSM, SCADA system.Single pole installation diagramOn-site
installation of Circuit Breaker /* January 22, 2024 19:08:37
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