- the leaking current for circuit-b

- the leaking current for circuit-breaker suitable for
isolation: (

Kết quả (Việt) 1:

- the leaking current for circuit-breaker suitable for
isolation: (<6mA / 1,1 Ue)
………………………………………………………L1:
………………………………………………………L2:
………………………………………………………L3:
………………………………………………………N:
264 V
0,02 mA
0,02 mA
0,02 mA
P
8.3.5.4 Verification of overload releases
The operation of overload releases shall be verified at 2,5 times the value of their
current setting on each pole separately.
The operating time shall not exceed the max. value stated by the manufacturer for
twice the current setting at the reference temperature, on a pole singly.
Time specified by the manufacturer: tripping time ≤ 400 s P
- Operation time: (s) ....................................... L1:
....................................................................... L2:
....................................................................... L3:
117 s
110 s
121 s
P
Page 61 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
8.3.6 TEST SEQUENCE IV N/A
8.3.7 TEST SEQUENCE V N/A
8.3.8 TEST SEQUENCE VI: N/A
Annex C Individual pole short-circuit test sequence N/A
Annex F Additional tests for circuit-breakers with electronic over-current protection N/A
Page 62 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
Annex H Individual pole short-circuit test sequence
EasyPact CVS250B, 4 poles, 250 A
Circuit-breaker for use in IT systems
H.2 Test of individual pole short-circuit breaking capacity
A short-circuit test is made on the individual poles of a multipole circuit-breaker at
a value of prospective current (IIT) equal to 1,2 times the max. setting of the shorttime
delay release tripping current or, in the absence of such a release, 1,2 time
the max. setting of the tripping current of the instantaneous release, or, where
relevant 1,2 times the max. setting of the definite time delay release tripping
current, but not exceeding 50kA.
Type designation or serial number EasyPact CVS250B
Sample no: H - 4
Rated current: In (A) 250 A
Rated operational voltage: Ue (V) 440 V
Rated ultimate short-circuit breaking capacity: (kA) 20 kA
Rated control supply voltage of closing mechanism:
Uc (V)
N/A
Rated control supply voltage of shunt release:
Uc (V)
N/A
The test sequence of operations is O – t - CO
For circuit-breaker fitted with adjustable releases,
test shall be made with the current and time
settings at maximum.
N/A
closing mechanism energized with 85% at the rated
Uc: (V)
N/A
The circuit-breaker is mounted complete on its own
support or an equivalent support.
P
Test made in free air: P
Distances of the metallic screen’s: (all sides) Up / down: 35 mm
Left / right: 5 mm
Front / back: 0 mm
P
The characteristics of the metallic screen:
- woven wire mesh N/A
- perforated metal P
- expanded metal N/A
- ratio hole area/total area: 0,45-0,65 P
Page 63 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
- size of hole: <30mm2 P
- finish: bare or conductive plating P
Test made in specified individual enclosure:
Details of these tests, including the dimensions of
the enclosure:
N/A
Fuse ”F”:
copper wire: diameter 0,8 mm, 50 mm long
P
Circuit is earthed at: (load-star- or supply-star point) Load-star P
Conductor cross-sectional area (mm²): 120 mm2 P
If terminals unmarked:
line connected at: (underside/upside)
upside P
Tightening torques: (Nm) 15 Nm P
Test sequence of operation: O – t – CO P
Test circuit according figure: 9 P
- test voltage U/Ue = 1,05 (V) ........................ L1:
....................................................................... L2:
....................................................................... L3:
462 V
462 V
462 V
P
Short-circuit test current (IIT):
equal to 1,2 times the max. setting of the short-time
delay release tripping current,
N/A
or, in the absence of such a release, 1,2 time the
max. setting of the tripping current of the
instantaneous release,
3,0 kA P
or, where relevant 1,2 times the max. setting of the
definite time delay release tripping current, but not
exceeding 50kA.
N/A
- r.m.s. test current AC/DC: (A) 3,06 kA P
power factor/time constant: 0,89 P
- Factor ”n” 1,42 P
- peak test current (Amax) : 4,34 kA P
Test sequence ”O” L1
- max. let-through current: (kApeak) ............... L1: 4,25 kA P
- Joule integral I²dt (A²s) ................................ L1: 146 kA2s P
Pause, t: (min) 3 min P
Test sequence ”CO” L1
- max. let-through current: (kApeak) ............... L1: 4,04 kA P
Page 64 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
- Joule integral I²dt (A²s) ................................ L1: 137 kA2s P
Test sequence ”O” L2
- max. let-through current: (kApeak) ............... L2: 4,24 kA P
- Joule integral I²dt (A²s) ................................ L2: 159 kA2s P
Pause, t: (min) 3 min P
Test sequence ”CO” L2
- max. let-through current: (kApeak) ............... L2: 4,28 kA P
- Joule integral I²dt (A²s) ................................ L2: 190 kA2s P
Test sequence ”O” L3
- max. let-through current: (kApeak) ............... L3: 4,26 kA P
- Joule integral I²dt (A²s) ................................ L3: 156 kA2s P
Pause, t: (min) 3 min P
Test sequence ”CO” L3
- max. let-through current: (kApeak) ............... L3: 4,18 kA P
- Joule integral I²dt (A²s) ................................ L3: 146 kA2s P
For 4-pole circuit-breakers with a protected neutral
pole, the test voltage for that pole shall be phase-tophase
voltage divided by √3. This test is applicable
only where the construction of the protected neutral
pole differs from that of the phase poles.
N/A
Test sequence ”O” N
- max. let-through current: (kApeak) ................ N: N/A
- Joule integral I²dt (A²s) ................................. N: N/A
Pause, t: (min) N/A
Test sequence ”CO” N
- max. let-through current: (kApeak) ................ N: N/A
- Joule integral I²dt (A²s) ................................. N: N/A
Melting of the fusible element N/A
Holes in the PE-sheet for test sequence ”O” N/A
Cracks observed N/A
H.3 Verification of dielectric withstand
- equal to twice the rated operational voltage with a
minimum of 1000 V
1000 V / 5 s P
Page 65 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
- no breakdown or flashover P
- the leaking current for circuit-breaker suitable for
isolation: (<6mA / 1,1 Ue)
………………………………………………………L1:
………………………………………………………L2:
………………………………………………………L3:
………………………………………………………N:
484 V
0,01 mA
0,01 mA
0,01 mA
0,01 mA
P
H.4 Verification of overload releases
The operation of overload releases shall be verified at 2.5 times the value of their
current setting on each pole separately.
The operating time shall not exceed the max. value stated by the manufacturer for
twice the current setting at the reference temperature, on a pole singly.
Time specified by the manufacturer: tripping time ≤ 900 s P
- Operation time: (s) ....................................... L1:
....................................................................... L2:
....................................................................... L3:
124 s
110 s
107 s
P
H.5 Marking
Circuit-breaker for which all values of rated voltage
have not been tested according to this annex or are
not covered by such testing, shall be identified by
the symbol which shall be market on the circuitbreaker
immediately following these values of rated
voltage
N/A