3P/4P Rated current 2000A~3200A frame Air circuit breaker with high breaking capacity
| Place of Origin: | Guangdong, China (Mainland) |
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3P/4P Rated current 2000A~3200A frame Air circuit breaker with high breaking capacity
3P/4P Rated current 2000A~3200A frame Air circuit breaker with high breaking capacity
| Technical specifications |
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Frame size rated current Inm (A) |
Rated current In A |
|
2000 |
400,630,800,1000,1250,1600,2000 |
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3200 |
2000,2500,2900,3200 |
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4000 |
3200,3600,4000 |
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6300 |
4000,5000,6300 |
Circuit breaker rated short-circuit breaking capacity and rated short-time withstand current, Arcing- over distance is zero.
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Size current Inm (A) |
2000 |
3200 |
4000 |
6300 |
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Rated limit short-circuit breaking |
400V |
85 |
100 |
100 |
120 |
|
690V |
50 |
65 |
65 |
80 |
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Rated short-circuit connecting capacity N×Icu (KA)/ cos |
400V |
176/0.2 |
220/0.2 |
220/0.2 |
264/0.2 |
|
690V |
105/0.25 |
143/0.2 |
143/0.2 |
187/0.2 |
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Rated operating short-circuit breaking |
400V |
50 |
65 |
65 |
80 |
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690V |
40 |
50 |
50 |
70 |
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Rated operating short-circuit breaking |
400V |
50 |
65 |
65/80(MCR) |
85/100(MCR) |
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690V |
40 |
50 |
50/65(MCR) |
65/75(MCR) |
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Note: last hour line and next enter line of breaking capacity in the table are the same. |
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Earthing fault
Largest power loss of the breaker is 360W. Breaker’s rated continuous current changes under different conditions.
|
TemperatureGTW1 |
400A |
630A |
800A |
1000A |
1250A |
1600A |
2000A |
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40 |
400A |
630A |
800A |
1000A |
1250A |
1600A |
2000A |
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50 |
400A |
630A |
800A |
1000A |
1250A |
1550A |
1900A |
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60 |
400A |
630A |
800A |
1000A |
1250A |
1550A |
1800A |
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Note: 2500A or above derating factor is 0.9, including 4000A none-derating among 6300A. |
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Intelligent over-current controller protection characteristic and function
Over-current controller protection feature
a.Controller’s setting value Ir (I/ In) and accuracy
|
Long- delay |
Short- delay |
Instantaneous |
arthingfault |
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Ir1 |
Ir2 |
Accuracy |
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Ir3 |
Accuracy |
Accuracy |
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|
(0.4-1)In |
(0.4-15)In |
±10% |
In~50KA(Inm=200A) |
±15% |
Inm=2000~4000A (0.2~0.8) |
Inm=6300A(0.2-1.0)In |
±10% |
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Note:when required three-section protection at the same time,setting values can’t intercross. |
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b.Long time delay overcurrent protection characteristics I2TL=(1.5Ir1) 2 tL Operative time of (1.05~2.0)Ir1 view table below, time accuracy
is ±15%.
Note: tL- long time delay setting for 1.5 Irs, TL- long time delay operative time
c.Short time delay over-current protection characteristic
d.Short time delay over-current protection is with fixed time setting. When inverse time limit is required to be low multiples, its characteristic
should according to I2Ts=(8Ir1) 2 ts, ts is for common delay time setting; when pver load current >8 Ir1 , automatically changes to fixed
time setting characteristic, its characteristic view table below, time accuracy is ±15%.
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Delay time(s) |
Returnable time(s) |
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0.3 |
0.4 |
0.06 |
0.14 |
0.23 |
0.35 |
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d.over-current protection characteristic view graph1,earthing fault protection characteristic view graph2.
| Description: |
