零线电流过大的解决方案-HJLS零序滤波器

[[{"txt": "\u96f6\u7ebf\u7535\u6d41\u6d88\u9664\u5668\uff08\u4e13\u4e1a\u540d\u79f0\uff1a\u96f6\u5e8f\u6ee4\u6ce2\u5668\uff09\u662f\u672c\u516c\u53f8\u901a\u8fc7\u81ea\u4e3b\u7814\u53d1\u548c\u5f15\u8fdb\u56fd\u5916\u5148\u8fdb\u6280\u672f\u76f8\u7ed3\u5408\u3001\u5f00\u53d1\u51fa\u6765\u7684\u5177\u6709\u81ea\u4e3b\u77e5\u8bc6\u4ea7\u6743\u548c\u56fd\u5bb6\u4e13\u5229\u7684\u9ad8\u65b0\u6280\u672f\u4ea7\u54c1\u3002\u662f\u89e3\u51b3\u5404\u884c\u4e1a\u7535\u6c14\u8bbe\u5907\u5728\u4e09\u76f8\u8d1f\u8f7d\u5e73\u8861\u65f6\u96f6\u7ebf\u7535\u6d41\u8fc7\u5927\u5f15\u8d77\u7684\u8bbe\u5907\u6545\u969c\u548c\u5b89\u5168\u9690\u60a3\u7684\u9ad8\u79d1\u6280\u4ea7\u54c1\u3002Zero current eliminator (professional name: zero sequence filter) is researched and developed by our company, this product is new high-tech product developed by combining with abroad advanced technology and reserves proprietary intellectual property rights and national patent. When the three-phase load evenly but current of zero line over flow, by using this product it could solve equipment failure and avoid safety loophole for electrical industry.\u00a0"}, {"img": ["https://exp-picture.cdn.bcebos.com/87c8bf46b7b1eef933df5ac9bfb33c4132ba32fb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/b955ead0b503c8d2199c51fb498333bf3aef21fb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}], [{"txt": ["\u5de5\u5177/\u539f\u6599"]}, {"txt": "\u96f6\u7ebf\u7535\u6d41\u8fc7\u5927\u7684\u89e3\u51b3\u51b3"}, {"txt": "\u96f6\u5e8f\u6ee4\u6ce2\u5668"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "1.\u00a0\u00a0 Applicable Condition\u00a0\u00a0 \u76ee\u524d\u5df2\u5927\u91cf\u5e94\u7528\u4e8e\uff1aLED\u663e\u793a\u5c4f\u3001\u5e7f\u544a\u724c\u3001LED\u8def\u706f\u3001\u666f\u89c2\u7167\u660e\u3001\u7535\u6c60\u5316\u6210\u68c0\u6d4b\u7cfb\u7edf\u3001\u7535\u6e90\u751f\u4ea7\u8001\u5316\u7cfb\u7edf\u3001\u5546\u573a\u3001\u4f53\u80b2\u9986\u3001\u821e\u53f0\u3001\u5927\u578b\u5546\u4e1a\u7efc\u5408\u4f53\u7b49\u573a\u6240\u884c\u4e1a\u3002Currently zero current eliminator could be used to eliminate over flow of current of zero line for LED display screen, advertising board, LED street lamp, landscape lighting, battery formatting inspection system, manufacturing and aging system of power, emporium, stadium, stage and large-scale complex etc."}, {"img": ["https://exp-picture.cdn.bcebos.com/dd58d02c5b1b1ede85beb68c981fceecd2d90ffb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/9bc92713e8e5ecee29dea89acc704618deda7afb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u5e38\u89c1\u9020\u6210\u96f6\u7ebf\u7535\u6d41\u8fc7\u5927\u7684\u7535\u5b50\u8bbe\u59071.\u00a0\u00a0 Electrical Equipments Which Often Encounter Zero Current Over Flowl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5404\u79cd\u5f00\u5173\u7535\u6e90\u8bbe\u5907\uff08\u8ba1\u7b97\u673a\u3001\u7535\u89c6\u673a\u3001\u663e\u793a\u5668\u7b49\uff09\uff1bl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Various switching power equipment(computer, television, display screen etc)l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u53d8\u9891\u5668\u7684\u5927\u91cf\u5e94\u7528\uff08\u53d8\u9891\u7a7a\u8c03\u3001\u7535\u673a\u8282\u80fd\u7b49\uff09\uff1bl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Equipment with mass frequency converter (inverter air conditioner, energy saving motor etc.)l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5404\u79cd\u65b0\u5149\u6e90\uff08LED\u706f\u3001\u8282\u80fd\u706f\u3001\u8367\u5149\u706f\u7b49\uff09\uff1bl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Various new illuminants (LED lamp, energy saving lamp, fluorescent lamp etc.)l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u529e\u516c\u8bbe\u5907\uff08\u590d\u5370\u673a\u3001\u4f20\u771f\u673a\u7b49\uff09\uff1bl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Office equipments( duplicating machine, fax machine etc.)l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5bb6\u7528\u7535\u5668\uff08\u6d17\u8863\u673a\u3001\u663e\u793a\u5c4f\u3001\u5fae\u6ce2\u7089\u7b49\uff09\uff1bl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Household appliances (washing machine, display screen, micro-oven etc.)l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7535\u5b50\u8bbe\u5907\uff08\u624b\u673a\u5145\u7535\u5668\u7b49\u6574\u6d41\u8bbe\u5907\uff09l\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 electronic equipments (rectifying appliances such as phone charger etc)"}, {"img": ["https://exp-picture.cdn.bcebos.com/974a2f21056104a3c08b951b63d7592ae2ef6bfb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/22c4fe36e29147e895822fc7b603bbea3f8658fb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u00a0\u96f6\u7ebf\u7535\u6d41\u4ea7\u751f\u7684\u539f\u56e01.\u00a0\u00a0 The cause of zero line current occuring\u6839\u636e\u56fd\u5bb6\u6807\u51c6GB17625.1-2003\u300a\u7535\u78c1\u517c\u5bb9\u00a0 \u9650\u503c\u00a0 \u8c10\u6ce2\u7535\u6d41\u53d1\u5c04\u9650\u503c\uff08\u8bbe\u5907\u6bcf\u76f8\u8f93\u5165\u7535\u6d41\u226416A\uff09\u300b\u9650\u503c\u8981\u6c42\uff0c\u5bf9\u4ee5\u4e0a\u8bbe\u5907\u8c10\u6ce2\u9650\u503c\u5f88\u4f4e\uff0c\u9020\u5c31\u4ea7\u54c13\u6b21\u8c10\u6ce2\u542b\u91cf\u5f88\u5927\uff0c\u7531\u4e8e3\u6b21\u8c10\u6ce2\u77e2\u91cf\u65b9\u5411\u89d2\u5ea6\u4e00\u81f4\uff0c\u4f7f\u7528\u5bff\u547d\u6b21\u8c10\u6ce2\u5411\u96f6\u7ebf\u53e0\u52a0\uff0c\u9020\u6210\u96f6\u7ebf\u7535\u6d41\u8fc7\u5927\uff0c\u3002\u5355\u4f53\u529f\u7387\u6781\u5c11\uff0c\u5355\u4f53\u800c\u8a00\uff0c\u9020\u6210\u7684\u5371\u5bb3\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\uff0c\u4f46\u5f53\u76f8\u5f53\u591a\u7684\u5355\u4f53\u4e00\u8d77\u4f7f\u7528\u65f6\uff0c\u96f6\u7ebf\u7535\u6d41\u5927\u5f97\u60ca\u4eba\uff08\u4e25\u91cd\u65f6\u8d85\u8fc7\u76f8\u7ebf\u7535\u6d41\u7684\u4e24\u500d\uff09According to limit value stipulated by national standard GB17625.1-2003 \u201cElectromagnetic compatibility--Limits--Limits for harmonic current emissions(equipment input current\u226416A per phase)\u201d, the harmonic current limit value regulated for above equipment stated under item 3 is very low, it makes the 3rd order harmonic current capacity large, also because the 3rd order harmonic current is consistent in vector, direction and angle, the working life of sub harmonic current overlay to zero line, these makes the current of zero line over flow. Power capacity of single equipment is low and we could ignore its damage, but when a great amount of equipments are used at the same time, current of zero line will be great (it will be more than twice of the phase line in serious situation)."}, {"img": ["https://exp-picture.cdn.bcebos.com/1d735518512c8cf160c53086c384cde34a2c46fb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1", "https://exp-picture.cdn.bcebos.com/3b8fb4d7726b0ce2ad8522baef781423bfb9b6fb.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa42"]}, {"txt": "\u00a0 \u6280\u672f\u6570\u636e1.\u00a0\u00a0 Technical Specification\u8be5\u8868\u5217\u51fa\u7684\u6280\u672f\u6570\u636e\u662f\u5e38\u7528\u89c4\u683c\uff0c\u82e5\u6709\u7279\u6b8a\u8981\u6c42\uff0c\u8bf7\u8054\u7cfb\u6211\u4eec\u3002This form states the normal specification, if there is special requirement, please contact us.\u5de5\u4f5c\u6761\u4ef6Working condition\u6700\u5927\u76f8\u5bf9\u6e7f\u5ea6\uff1a 90%RHMax. Relative Humidity: \u00a0 90%RH\u73af\u5883\u6700\u9ad8\u6e29\u5ea6\uff1a40\u2103Max. ambient temperature: 40\u2103\u6700\u9ad8\u6d77\u62d4\u9ad8\u5ea6\uff1a2000mMax. altitude: 2000m\u57fa\u672c\u7535\u6c14\u53c2\u6570Basic specification\u989d\u5b9a\u9891\u7387\uff1a50HzRated frequency: 50Hz\u989d\u5b9a\u7535\u538b\uff1a400VRated voltage: 400V\u6574\u673a\u635f\u8017\uff1a\uff1c3W/KVALoss of the whole equipment: \u00a0 \uff1c3W/KVA\u8fde\u63a5\u65b9\u5f0fConnecting method\u4e09\u76f8\u56db\u7ebf\u5236\u7cfb\u7edf\uff0c\u7535\u7f06\u6216\u94dc\u6392\u8fde\u63a5Three phases four wires, \u00a0 connected by cable or copper bar.\u7edd\u7f18\u7b49\u7ea7Insulation gradeH\u7ea7\uff08\u6b63\u5e38\u5de5\u51b5\u4e0bB\u7ea7\uff09Grade H(normal condition: \u00a0 grade B)\u9632\u62a4\u7b49\u7ea7Protection gradeIP30\u6267\u884c\u6807\u51c6StandardGB/T14549-1993\u3001GB10941-1996\u3001GB19212.1-2003\u3001GB6450-1986\u3001 GB/T501-1991"}]]