China 24kv 50Hz 60Hz Indoor Vacuum Circuit Breaker for Distribution Panel

itemDescriptionUnitPEDEEE
RequirementsBidder
Specification1Manufacturer reputation/skills/quality check HEMG2ISO9001 Certificate ISO3Type of circuit breaker VACUUM4Type designation INDOOR5Rated frequencyHz60606Rated voltagehighest system voltage Minimum service voltage
kV
kV
17 20
24 207Rated normal current at 50ºC ambient temperaturefor outgoing bay b) for incoming bay
AA
≥630
≥1250
≥630
≥12508Rated breaking current capacitySymmetrical kA (rms) DC Component %
20
259Rated peak making current, kA (peak) ≥62.5≥62.510Rated peak short-circuit current, kA (peak) 5011Rated short time current1 sec, kA (rms)3 sex kA (rms)

≥25
≥2512Rated line charging breaking current A 13Rated cable charging breaking currentA 2514Rated small inductive breaking currentA 15Rated breaking current under out of phase conditionskA 17.416Restricting voltage rated of rise (RRRV), kV/MicrosecondPeak, kV(peak) 17Fist pole to clear factor 1.518One minute power frequency withstand voltage
phase to earth, kV(rms)across open contacts, kV (rms)

≥50
≥50
65
65
19Lighting impulse withstand voltage 1.2/50 microsecond ≥12512520Rated operating sequence O-0.3s-CO-180s-CO21Capacity to make 75High speed three phase auto recluse22Minimum time between each successive break/make operationSec ≤223Opening time (until separation of the arcing contactswithout current with 100% rated breaking current
ms
ms
50
5024Maximum total break time
(until total are extinction)ms ≤5025Maximum time interval between opening of the fist and last phasems ≤226Maximum time interval between opening of the interrupters of one phase (if any)ms 27Make tinewithout current with 100% rated making current
ms
ms 28Maximum total make time (closing initiation to latching of circuit breaker in fully closed position)ms ≤7529Maximum time between closing of fist and last phasems ≤230Maximum time interval between closing of interrupters of one phasems 31Dead timems≤300≤30032Maximum peak value of switching over voltage when interrupting rated line charging current, kV(peak)33Radio influence voltage (RIV) measured at rated voltage to earth, micro V34Devices used to limit transient recovery voltages35Creepage distanceto earth across terminals 36Operating mechanism
typeoperating voltage Rated,/rage
VDC
%
220,110
-20
+10
220,110
-20
+1037Closing release coilrated operating voltage minimum operating voltage maximum operating voltage rated power
VDC
%
%
W
220,110
-20%
+10

220,110
-20%
+10
38Trip release coil
rated operating voltageminimum operating voltage maximum operating voltage Rated Power
VDC
%
%
W
220,110
-30%
+10%

220,110
-30%
+10%
39Distance: Between phases (between the centers of the two phases "e8" in the attached drawing Between alive part and earth
275mm
40Weight of circuit breaker total Heaviest part to be lifted during maintenance or repair producer
138kg41Type certificate details:testing station/authority certificate number applied standards the technical specification doesn't mention on the supply of C.B cradle YES42The interrupter vacuum cubicle/country of originCHINA