| 用途 Application |
Ⅱ 該產(chǎn)品用于煤礦井下及其周圍介質(zhì)中有甲烷、煤塵等爆炸性混合物氣體環(huán)境中，在交流50Hz，額定電壓為660V或1140V，額定電流400A及以下線路中作為供電系統(tǒng)的總開關(guān)（Z）和配電支路首未端的分開關(guān)（F）之用。當(dāng)加設(shè)欠壓保護(hù)時也可作為電動機(jī)不頻繁起動之用。
Ⅱ 該產(chǎn)品保護(hù)系統(tǒng)采用先進(jìn)的單片技術(shù)，中文顯示、配置PSM2003系統(tǒng)軟件可實(shí)現(xiàn)煤礦配電自動化。
Ⅱ This series product is applicable for coal mine with firedamp or coal dust in the ambient,Applied as main switch (Z) of power aupply and branch switch(F) of terminal of disribution branch circuit of AC 50Hz rated voltage 660V or 1140V,rated current 400A and below,After add with a under-voltage protection,it can be used as infrequent start for electromotor.
Ⅱ The protection system of this product adopts Chinese display and advanced singlechip tecnology .Equipped with PSW2003 system software to realize automatization of distribution for coal mine. |
| 特點(diǎn) Characteristics |
Ⅱ 饋電開關(guān)具有過載、短路、過壓、斷相保護(hù)、三相對稱性漏電保護(hù)，選擇性漏電博愛戶，分支開關(guān)漏電保護(hù)的后備保護(hù)及漏電閉鎖保護(hù)功能。
Ⅱ The feeding switch possesses functions of overload,short-circuit,over voltage protection,phase loss and three-phase symmetric leakage protection,back-up protection of branch switch leakage protection and leakage locking protection.
注：Ⅱ型為電抗器型、Ⅲ型為風(fēng)電瓦斯閉鎖型
Note:Ⅱis reactor type, Ⅲ is windy and electric gas locking type |
| 技術(shù)參數(shù) Technical parameter |
|
額定工作電壓 Rated working voltage |
400A |
500A |
630A |
|
額定工作電流 Rated working current |
1140V |
660V |
1140v |
660V |
1140v |
660V |
|
斷路器極限分?jǐn)嗄芰?Limit breaking capacity of breaker |
7.5KA |
9KA |
9KA |
12.5KA |
12.5KA |
15KA |
|
分段時間 Breaking time |
30ms |
30ms |
30ms |
|
切斷短路電流時間 Time of cutting short-circuit current |
60ms |
60ms |
60ms |
|
漏電保護(hù)動作阻值為 Resistance value of leakage protect action |
20KΩ |
11KΩ |
20KΩ |
11KΩ |
20KΩ |
11KΩ |
|
漏電閉鎖值 Leakage locking resistance value |
40KΩ |
22KΩ |
40KΩ |
22KΩ |
40KΩ |
22KΩ | | | | |
|
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