Page 31 of 80 Report No. 3302407.50

Page 31 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
- Joule integral I²dt
(A²s) …………........................L1:
…………………………………………………..……
....................................................................... L2:
……………………………………………………..…
....................................................................... L3:
37,7 kA2s
285 kA2s
151 kA2s
P
Pause, t: (min) 3 min P
Test sequence ”CO”
- max. let-through current:
(kApeak) …………......L1:
…………………………………………………….…L2:
…………………………………………………….…L3:
15,5 kA
12,9 kA
13,7 kA
P
- Joule integral I²dt
(A²s) …………........................L1:
…………………………………………………..……
....................................................................... L2:
……………………………………………………..…
....................................................................... L3:
407 kA2s
175 kA2s
235 kA2s
P
Pause, t: (min) 3 min P
Test sequence ”CO”
- max. let-through current:
(kApeak) …………......L1:
…………………………………………………….…L2:
…………………………………………………….…L3:
16,0 kA
15,3 kA
17,3 kA
P
- Joule integral I²dt
(A²s) …………........................L1:
………………………………………………………
..................................................................... ..L2:
………………………………………………………
..................................................................... ..L3:
319 kA2s
301 kA2s
282 kA2s
P
Melting of the fusible element No melting P
Holes in the PE-sheet for test sequence ”O” No hole P
Cracks observed No crack P
8.3.4.2 Operational performance capability with current.
Rated current: In (A) 250 A
Maximum rated operational voltage: Ue (V) 240 V
Conductor cross-sectional area (mm²) : 120 mm2
Number of operating cycles per hour 120 P
Number (5% of the number given in column 4, tab.
8) of cycles with current (total)
(closing mechanism energized at the rated Uc)
50 P
Page 32 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
Applied voltage: closing mechanism (V) N/A
For circuit-breaker fitted with adjustable releases,
test shall be made with the overload setting at
maximum and short-circuit setting at minimum.
Overload: 1,0 In
Short-circuit: fixed
P
Conditions, make/break operations:
- test voltage U/Ue = 1,0 (V) …………................L1:
……………………………………………………….L2:
……………………………………………………….L3:
248 V
248 V
248 V
P
- test current I/Ie = 1,0
(A) …………....................L1:
………………………………………………………..L2
:
……………………………………………………..…L3
:
250 A
256 A
252 A
P
- power factor/time constant: 0,80 P
- frequency: (Hz) 50 Hz P
- on-time (ms): Min 232 ms P
- off-time (s): Max 29,8 s P
8.3.4.3 Verification of dielectric withstand
- equal to twice the rated operational voltage with a
minimum of 1000 V
1000 V / 5 s P
- no breakdown or flashover P
- the leaking current for circuit-breaker suitable for
isolation: (

Kết quả (Việt) 1:

Page 31 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
- Joule integral I²dt
(A²s) …………........................L1:
…………………………………………………..……
....................................................................... L2:
……………………………………………………..…
....................................................................... L3:
37,7 kA2s
285 kA2s
151 kA2s
P
Pause, t: (min) 3 min P
Test sequence ”CO”
- max. let-through current:
(kApeak) …………......L1:
…………………………………………………….…L2:
…………………………………………………….…L3:
15,5 kA
12,9 kA
13,7 kA
P
- Joule integral I²dt
(A²s) …………........................L1:
…………………………………………………..……
....................................................................... L2:
……………………………………………………..…
....................................................................... L3:
407 kA2s
175 kA2s
235 kA2s
P
Pause, t: (min) 3 min P
Test sequence ”CO”
- max. let-through current:
(kApeak) …………......L1:
…………………………………………………….…L2:
…………………………………………………….…L3:
16,0 kA
15,3 kA
17,3 kA
P
- Joule integral I²dt
(A²s) …………........................L1:
………………………………………………………
..................................................................... ..L2:
………………………………………………………
..................................................................... ..L3:
319 kA2s
301 kA2s
282 kA2s
P
Melting of the fusible element No melting P
Holes in the PE-sheet for test sequence ”O” No hole P
Cracks observed No crack P
8.3.4.2 Operational performance capability with current.
Rated current: In (A) 250 A
Maximum rated operational voltage: Ue (V) 240 V
Conductor cross-sectional area (mm²) : 120 mm2
Number of operating cycles per hour 120 P
Number (5% of the number given in column 4, tab.
8) of cycles with current (total)
(closing mechanism energized at the rated Uc)
50 P
Page 32 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
Applied voltage: closing mechanism (V) N/A
For circuit-breaker fitted with adjustable releases,
test shall be made with the overload setting at
maximum and short-circuit setting at minimum.
Overload: 1,0 In
Short-circuit: fixed
P
Conditions, make/break operations:
- test voltage U/Ue = 1,0 (V) …………................L1:
……………………………………………………….L2:
……………………………………………………….L3:
248 V
248 V
248 V
P
- test current I/Ie = 1,0
(A) …………....................L1:
………………………………………………………..L2
:
……………………………………………………..…L3
:
250 A
256 A
252 A
P
- power factor/time constant: 0,80 P
- frequency: (Hz) 50 Hz P
- on-time (ms): Min 232 ms P
- off-time (s): Max 29,8 s P
8.3.4.3 Verification of dielectric withstand
- equal to twice the rated operational voltage with a
minimum of 1000 V
1000 V / 5 s P
- no breakdown or flashover P
- the leaking current for circuit-breaker suitable for
isolation: (<2mA / 1,1 Ue) ……………………..…L1:
……………………………………………………..…L2
:
…………………………………………………….…L3:
…………………………………………………….…N:
264 V
0,02 mA
0,02 mA
0,02 mA
0,02 mA
P
8.3.4.4 Verification of temperature-rise
- the values of temperature-rise do not exceed
those specified in tab. 7.
P
Temperature rise of main circuit terminals.
 80 K (K) :
Max 52 K
see table 1
P
conductor cross-sectional area (mm²) : 120 mm2 P
test current Ie (A) : 250 A P
8.3.4.5 Verification of overload releases
Test current: 1,45 times the value of their current
setting at the reference temperature: (A)
390 A (tested at 25 oC,
corrected to 269 A)
P
Page 33 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
Conventional tripping time:
<1h when In < 63A, <2h when In > 63 A
3 min 03 s 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 ≤ 900 s P
- Operation time: (s) ....................................... L1:
....................................................................... L2:
....................................................................... L3:
153 s
136 s
144 s
P
Page 34 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
8.3.5 TEST SEQUENCE III (Icu)
EasyPact CVS250B, 4 poles, 250 A
Rated ultimate short-circuit breaking
Except where the combined test sequence applies, this test sequence applies to
circuit-breaker of utilization category A and to circuit-breaker of utilization B having
a rated ultimate short-circuit breaking capacity higher than the rated short-time
withstand current.
For circuit-breakers of utilization B having a rated short-time withstand current
equal to their rated ultimate short-circuit breaking capacity, this test sequence need
not be made, since, in this case, the ultimate short-circuit breaking capacity, is
verified when carrying out test sequence IV.
For integrally fused circuit-breakers, test sequence V applies in place of this
sequence.
Type designation or serial number Easypact CVS250B
Sample no: III - 8
Rated current: In (A) 250 A
Rated operational voltage: Ue (V) 440 V
Rated ultimate short-circuit breaking capacity: (kA) 18 kA, tested at 36 kA
Rated control supply voltage of closing
mechanism: Uc (V)
N/A
Rated control supply voltage of shunt release:
Uc (V)
N/A
This test sequence need not be made when Icu = Ics
8.3.5.1 The operation of overload releases shall be verified at twice 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:
234 s
223 s
230 s
P
8.3.5.2 Test of rated ultimate short-circuit breaking capacity
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
Page 35 of 80 Report No. 3302407.50
IEC 60947-2
Clause Requirement + Test Result - Remark Verdict
TRF No. IEC60947_2F
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
- 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)
underside P
Tightening, torques: (Nm) 15 Nm P
Test sequence of operation: O – t – CO P
- test voltage U/Ue = 1,05 (V) ................... L1-L2:
.................................................................. L2-L3:
.................................................................. L3-L1:
466 V
466 V
466 V
P
- r.m.s. test current AC/DC: (A) ....................... L1:
....................................................................... L2:
....................................................................... L3:
36,3 kA
36,5 kA
36,3 kA
P
power factor/time constant : 0,25 P
- Factor ”n” 2,1 P
- peak test current (Amax) : 76,4 kA