商铺名称:中山朗立电气有限公司
联系人:游小姐(小姐)
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企业邮箱:lixun98@126.com
联系地址:中山市港口镇兴港南路17号153卡
邮编:528400
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AONE/A-ONE AUTOVALVE,AKGV-150A 150 6 配件名称中山立讯电气有限公司直销中山立讯电气有限公司销售韩国DONGYANG F&C 氢氧化钠自动阀
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DONGYANG F&C 氢氧化钠自动阀
BDD-1000S BDD-1100S BDD-1200S BDD-1300S BDD-1400S BDD-1500S
BDD-2000S BDD-2100S BDD-2200S BDD-2300S BDD-2400S BDD-2500S
BDD-3000S BDD-3100S BDD-3200S BDD-3300S BDD-3400S BDD-3500S
BDD-1010S BDD-1110S BDD-1210S BDD-1310S BDD-1410S BDD-1510S
BDD-2010S BDD-2110S BDD-2210S BDD-2310S BDD-2410S BDD-2510S
BDD-3010S BDD-3110S BDD-3210S BDD-3310S BDD-3410S BDD-3510S
当负载电流过零时,双向可控硅(晶闸管)开始换向,但由于相移的关系,电压将不会是零。所以要求可控硅(晶闸管)要迅速关断这个电压。如果这时换向电压的变化超过允许值时,就没有足够的时间使结间的电荷释放掉,而被迫使双向可控硅(晶闸管)回到导通状态。 首先,断路器在电路中主要是用于过电流保护,在电路有过载或短路情况发生时,产生电流过大,超过其承受电流适范围时,断路器切断电路,防止故障进一步扩大,这里一个关键的地方就是过电流。第二,空开选择一般是依据总电流的1.2~1.3倍,如果是电动机,就要考虑启动电流,一般是远远高于1.3倍,这有矛盾之处,所以,综上分析,配线断路器不宜用于保护电动机线路中。
BDD-1020S BDD-1120S BDD-1220S BDD-1320S BDD-1420S BDD-1520S
BDD-2020S BDD-2120S BDD-2220S BDD-2320S BDD-2420S BDD-2520S
BDD-3020S BDD-3120S BDD-3220S BDD-3320S BDD-3420S BDD-3520S
BDD-1001S BDD-1101S BDD-1201S BDD-1301S BDD-1401S BDD-1501S
BDD-2001S BDD-2101S BDD-2201S BDD-2301S BDD-2401S BDD-2501S
BDD-3001S BDD-3101S BDD-3201S BDD-3301S BDD-3401S BDD-3501S
BDD-1011S BDD-1111S BDD-1211S BDD-1311S BDD-1411S BDD-1511S
BDD-2011S BDD-2111S BDD-2211S BDD-2311S BDD-2411S BDD-2511S
:降压启动是指利用启动设备或线路,降低加在电动机定子绕组上的电压来启动电动机。降压启动可达到降低启动电流的目的,但由于启动力矩与每相定子绕组所加电压的平方成正比,所以降压启动的方法只适用于空载或轻载启动。 (5)油保护方式,N-不带金属器;带金属器不表示。(6)系列序 ,用数字表示。(7)额定电压,单位为kV。(8)特殊环境,用下列字母表示:GY-高原地区用;W-污秽地区用;TA-干热带地区用;TH-潮热带地区用。例如,JDX-110型表示单相、油浸式、带零序电压绕组的110kV电压互感器。
BDD-3011S BDD-3110S BDD-3211S BDD-3311S BDD-3411S BDD-3511S
BDD-1021S BDD-1121S BDD-1221S BDD-1321S BDD-1421S BDD-1521S
BDD-2021S BDD-2121S BDD-2221S BDD-2321S BDD-2421S BDD-2521S
BDD-3021S BDD-3121S BDD-3221S BDD-3321S BDD-3421S BDD-3521S
BDD-1002S BDD-1102S BDD-1202S BDD-1302S BDD-1402S BDD-1502S
BDD-2002S BDD-2102S BDD-2202S BDD-2302S BDD-2402S BDD-2502S
BDD-3002S BDD-3102S BDD-3202S BDD-3302S BDD-3402S BDD-3502S
BDD-1012S BDD-1112S BDD-1212S BDD-1312S BDD-1412S BDD-1512S
BDD-2012S BDD-2112S BDD-2212S BDD-2312S BDD-2412S BDD-2512S
对于220V三相电动机,它的额定电流约为额定容量的3.5倍,当电动机的功率在2KW以下时,可按4倍考虑。具体计算公式为I=KP式中I---三相异步电动机的额定电流(A)P---电动机的功率(KW)K---系数2单相电动机电流220V单相电动机的额定电流约为额定容量的8倍。 B型主要用于冲击电流小的设备,如白炽灯照明回路,瞬时脱扣电流4~7INC型主要用于冲击电流一般的设备,如荧光灯,气体放电灯照明,及普通用电设备回路,瞬时脱扣电流7~10IND型主要用于冲击电流大的设备,如电动机等大启动?。
BDD-3012S BDD-3110S BDD-3212S BDD-3312S BDD-3412S BDD-3512S
BDD-1022S BDD-1122S BDD-1222S BDD-1322S BDD-1422S BDD-1522S
BDD-2022S BDD-2122S BDD-2222S BDD-2322S BDD-2422S BDD-2522S
BDD-3022S BDD-3122S BDD-3222S BDD-3322S BDD-3422S BDD-3522S
BDD-1003S BDD-1103S BDD-1203S BDD-1303S BDD-1403S BDD-1503S
BDD-2003S BDD-2103S BDD-2203S BDD-2303S BDD-2403S BDD-2503S
BDD-3003S BDD-3103S BDD-3203S BDD-3303S BDD-3403S BDD-3503S
BDD-1013S BDD-1113S BDD-1213S BDD-1313S BDD-1413S BDD-1513S
BDD-2013S BDD-2113S BDD-2213S BDD-2313S BDD-2413S BDD-2513S
BDD-3013S BDD-3110S BDD-3213S BDD-3313S BDD-3413S BDD-3513S
BDD-1023S BDD-1123S BDD-1223S BDD-1323S BDD-1423S BDD-1523S
2)“电表测量电压值”。用万用表的交流电压250V(或500V)档测量电动机输入端的电源电压是否达到规定的电压值,例如220V(一般允许相差±5%)。如较低,应进一步测量上一级电源端(例如插座的输入端、电能表的输出和输入端等)的电压,如发现上一级或上几级的电压正常,则应检验中间的环节是否有不良等故障,如有则设法排除后再进一步检查。
BDD-2023S BDD-2123S BDD-2223S BDD-2323S BDD-2423S BDD-2523S
BDD-3023S BDD-3123S BDD-3223S BDD-3323S BDD-3423S BDD-3523S
BDD-1004S BDD-1104S BDD-1204S BDD-1304S BDD-1404S BDD-1504S
BDD-2004S BDD-2104S BDD-2204S BDD-2304S BDD-2404S BDD-2504S
BDD-3004S BDD-3104S BDD-3204S BDD-3304S BDD-3404S BDD-3504S
BDD-1014S BDD-1114S BDD-1214S BDD-1314S BDD-1414S BDD-1514S
BDD-2014S BDD-2114S BDD-2214S BDD-2314S BDD-2414S BDD-2514S
BDD-3014S BDD-3110S BDD-3214S BDD-3314S BDD-3414S BDD-3514S
BDD-1024S BDD-1124S BDD-1224S BDD-1324S BDD-1424S BDD-1524S
BDD-2024S BDD-2124S BDD-2224S BDD-2324S BDD-2424S BDD-2524S
BDD-3024S BDD-3124S BDD-3224S BDD-3324S BDD-3424S BDD-3524S
如果对应了程序1这样的程序。它是这样工作的:输入、输入锁存,按照程序1从左到右从上至下扫描运算出结果,输出锁存、输出。它是在时钟信 的驱动下,定时串行工作的。即输入,程序运算,输出,周而复始反复进行。只是由于串行程序扫描运行的速度太快而我们察觉不到而已。