380V电压用500比,5电流互感器怎样计算用电量 互感器电表如何计算度如500/5
\u4e09\u76f8\u56db\u7ebf\u529f\u7387\u8868\u914d500\u6bd45\u7535\u6d41\u4e92\u611f\u5668\uff0c\u5982\u4f55\u8ba1\u7b97\u7528\u7535\u91cf\u697c\u4e0a\u4e24\u4f4d\u4e25\u91cd\u8bef\u5bfc\u4e86\u5e7f\u5927\u6c11\u4f17\uff0c\u7535\u8868\u7684\u76f4\u663e\u5ea6\u6570\u786e\u5b9e\u4e0d\u662f\u5176\u7ebf\u8def\u771f\u5b9e\u7535\u91cf\uff0c\u9700\u8981\u628a\u5ea6\u6570\u4e58\u4e8e\u5176\u500d\u7387\u624d\u5f97\u771f\u6b63\u7535\u91cf\u5ea6\u6570\uff0c\u4f46\u662f\u4f60\u4eec\u8bef\u4ee5\u4e3a\u500d\u7387\u5c31\u662f\u7535\u80fd\u8868\u7684CT\u53d8\u6bd4\uff0c\u8fd9\u4e2a\u662f\u5f88\u7247\u9762\u7684\u3002\u5728\u5c45\u6c11\u7528\u7535\u4e2dCT\u53d8\u6bd4\u786e\u5b9e\u7b49\u4e8e\u500d\u7387\uff0c\u4f46\u662f\u5728\u9ad8\u538b\u7ebf\u8def\u4e2d\uff0810kV\u53ca\u5176\u4ee5\u4e0a\uff0c110kV\u3001220kV\u7b49\u7b49\uff0c\u6709\u65f6\u5c45\u6c11\u7528\u7535\u4e2d\u5c31\u6d89\u53ca\u6709\u5f88\u591a10kV\u7ebf\u8def\uff09\uff0c\u7535\u80fd\u8868\u7684\u500d\u7387\u7b49\u4e8ePT\uff08\u7535\u538b\u4e92\u611f\u5668\uff09\u53d8\u6bd4\u4e58\u4e8eCT\uff08\u7535\u6d41\u4e92\u611f\u5668\uff09\u53d8\u6bd4\uff0c\u6240\u4ee5\u5bf9\u4e8e\u697c\u4e3b\u7684\u95ee\u9898\uff0c\u5c31\u4e0d\u80fd\u7b80\u5355\u7684\u7528\u697c\u4e0a\u4e8c\u4f4d\u7684\u7b54\u6848\u6765\u56de\u7b54\u4e86\uff01\u5177\u4f53\u7684\u516c\u5f0f\u89c1\u4e0b\uff1a
\u5b9e\u9645\u7535\u91cf=\u500d\u7387*\u7535\u8868\u5ea6\u6570
\u5176\u4e2d\uff1a\u500d\u7387=PT\u53d8\u6bd4*CT\u53d8\u6bd4\uff08\u5c45\u6c11\u7528\u7535380V\u3001220V\u7535\u538b\u4e2d\u65e0PT\uff0c\u5176\u53d8\u6bd4\u53d61\uff09
\u5ea6\u6570\u76f4\u63a5\u8bfb\u51fa\u3002
\u6709\u529f\u7535\u5ea6=\u7535\u80fd\u8868\u8bfb\u6570\u5dee*\u7535\u538b\u4e92\u611f\u5668\u53d8\u6bd4*\u7535\u6d41\u4e92\u611f\u5668\u53d8\u6bd4\uff0c380v\u6ca1\u6709\u7535\u538b\u4e92\u611f\u5668\u7684\u8bdd\u76f4\u63a5*\u7535\u6d41\u4e92\u611f\u5668\u53d8\u6bd4\uff0c6kv\u4ee5\u4e0a\u90fd\u6709\u7535\u538b\u4e92\u611f\u5668\uff0c\u4e8c\u6b21\u7535\u538b\u4e3a100v\uff0c\u59826kv,500/5\u7535\u5ea6\u500d\u7387\u4e3a6/0.1*500/5=60000\uff0c\u7535\u8868\u8d70\u4e00\u5ea6\u5b9e\u9645\u7528\u753560000\u5ea6
电流比;500A/5A=100倍。实际耗电=电表读数x100。互感器100/5等于20也就是一度等于20度 500/5等于100电表一度就是100度电
绛旓細2. 瀵逛簬涓夌浉鐢佃矾锛岀數娴鐨勮绠楀叕寮忎负锛氱數娴 = 鍔熺巼 / 鐢靛帇 / 鐢靛帇鐩镐綅 / 璐熻浇鍔熺巼鍥犳暟銆3. 鍦ㄦ鍋囪璐熻浇涓虹數鍔ㄦ満銆佺嚎鍦堢瓑鎰熸ц礋杞斤紝鍔熺巼鍥犳暟澶х害涓0.8宸﹀彸锛堝疄闄呬笉鍚岃礋杞斤紝鍔熺巼鍥犳暟涓嶅悓锛夈4. 浠e叆鍏紡璁$畻锛氱數娴 = 500,000 / 380 / 1.732 / 0.8锛屽緱鍑虹數娴佺害涓950A宸﹀彸銆5. 鍩轰簬姝ょ數娴佸...
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绛旓細3銆500绫崇數缂嗙殑闀垮害瀵圭數鍘嬬殑褰卞搷锛氱粡鏌ワ紝3x185+95鐢电紗鐨勫浣撶洿娴佺數闃绘槸0.091惟/km銆傜數缂500绫筹紝鍦ㄦ甯搁瀹鐢垫祦涓嬬殑鍘嬮檷 = 0.091惟/km x 0.5km x 280A =12.7V 12.7V鏄380V鐨3.4%锛屽湪鍏佽鑼冨洿涔嬪唴銆傜數鏈鸿緭鍏ョ鐢靛帇绾︿负380V-12.7V=367.3V 4銆佺粨璁猴細380V鐨勭數鍘嬶紝鐢电嚎闀500绫筹紝瑕佸甫鍔...