电，并经35/0.38kv直降变压器对低压负荷配电，这样可以减少变电级数，从而可以节约电能和投资，并
dian bing jing 35/0.38kv zhi jiang bian ya qi dui di ya fu he pei dian zhe yang ke yi jian shao bian dian ji shu cong er ke yi jie yue dian neng he tou zi bing
企业其负荷不大又较集中，均为低压用电负荷，因工厂位于效区取得10(6)kv电源困难，当采用35kv供
qi ye qi fu he bu da you jiao ji zhong jun wei di ya yong dian fu he yin gong chang wei yu xiao qu qu de 10(6)kv dian yuan kun nan dang cai yong 35kv gong
设置大容量总降压变电所以较低的电压配电。这样可以大大缩短低压线路，降低有色金属和电能消耗量。又如某些
she zhi da rong liang zong jiang ya bian dian suo yi jiao di de dian ya pei dian zhe yang ke yi da da suo duan di ya xian lu jiang di you se jin shu he dian neng xiao hao liang you ru mou xie
采用若干个35kv的降压变电所分别设在车间旁的负荷中心位置，并以35kv线路直接在厂区配电，而不采用
cai yong ruo gan ge 35kv de jiang ya bian dian suo fen bie she zai che jian pang de fu he zhong xin wei zhi bing yi 35kv xian lu zhi jie zai chang qu pei dian er bu cai yong
电压比采用较低电压能减少配变电级数、简化结线。例如：某些大型企业(如大型钢铁企业)其车间负荷较大，可
dian ya bi cai yong jiao di dian ya neng jian shao pei bian dian ji shu jian hua jie xian li ru mou xie da xing qi ye ( ru da xing gang tie qi ye ) qi che jian fu he jiao da ke
大型电热设备，以10kv作为动力和照明配电电压。第4.0.3条在某些情况下，采用35kv电压作为配电
da xing dian re she bei yi 10kv zuo wei dong li he zhao ming pei dian dian ya di 4.0.3 tiao zai mou xie qing kuang xia cai yong 35kv dian ya zuo wei pei dian
电压。在供电电压为220或110kv的大型企业内，例如重型机器厂，可采用三绕组主变压器，以35kv供
dian ya zai gong dian dian ya wei 220 huo 110kv de da xing qi ye nei li ru zhong xing ji qi chang ke cai yong san rao zu zhu bian ya qi yi 35kv gong
的成熟经验确定。当企业有3kv电动机时，应配用1穿越之陌上花0(6)/3kv专用变压器，但不推荐以3kv作为配电
de cheng shu jing yan que ding dang qi ye you 3kv dian dong ji shi ying pei yong 1 chuan yue zhi mo shang hua 0(6)/3kv zhuan yong bian ya qi dan bu tui jian yi 3kv zuo wei pei dian
。因此，条文中没有规定此百分数，有关部门可视各类企业的特点，根据技术经济比较、企业发展远景及过去积累
yin ci tiao wen zhong mei you gui ding ci bai fen shu you guan bu men ke shi ge lei qi ye de te dian gen ju ji shu jing ji bi jiao qi ye fa zhan yuan jing ji guo qu ji lei
类企业的性质、规模及用电情况不一，6kv用电负荷究竟占多大比重穿越之陌上花时宜采用6kv，很难得出一个统一的规律
lei qi ye de xing zhi gui mo ji yong dian qing kuang bu yi 6kv yong dian fu he jiu jing zhan duo da bi zhong chuan yue zhi mo shang hua shi yi cai yong 6kv hen nan de chu yi ge tong yi de gui lv
量及其损耗就较大，开关设备和投资也增多，采用10kv配电电压反而不经济，而采用6kv是合理的。由于各
liang ji qi sun hao jiu jiao da kai guan she bei he tou zi ye zeng duo cai yong 10kv pei dian dian ya fan er bu jing ji er cai yong 6kv shi he li de you yu ge
v中间变压器供电。例如在大、中型化工厂，6kv高压电动机负荷较大，则10kv方案中所需的中间变压器容
v zhong jian bian ya qi gong dian li ru zai da zhong xing hua gong chang 6kv gao ya dian dong ji fu he jiao da ze 10kv fang an zhong suo xu de zhong jian bian ya qi rong
失等，显然是合理的。当企业有6kv用电设备时，如采用10k穿越之陌上花v配电，则其6kv用电设备一般经10/6k
shi deng xian ran shi he li de dang qi ye you 6kv yong dian she bei shi ru cai yong 10k chuan yue zhi mo shang hua v pei dian ze qi 6kv yong dian she bei yi ban jing 10/6k
上时，企业内部的配电电压宜采用10kv，用采用10kv配电电压可以节约有色金属，减少电能损耗和电压损
shang shi qi ye nei bu de pei dian dian ya yi cai yong 10kv yong cai yong 10kv pei dian dian ya ke yi jie yue you se jin shu jian shao dian neng sun hao he dian ya sun
0kv取穿越之陌上花代6kv电压。因此，采用10kv有利于互相支援，有利于将来的发展。故当供电电压为35kv及以
0kv qu chuan yue zhi mo shang hua dai 6kv dian ya yin ci cai yong 10kv you li yu hu xiang zhi yuan you li yu jiang lai de fa zhan gu dang gong dian dian ya wei 35kv ji yi
。所以，供电电压的选择，不易找出严格的规律，只能订原则。第4.0.2条目前我国公用电力系统已逐步由1
suo yi gong dian dian ya de xuan ze bu yi zhao chu yan ge de gui lv zhi neng ding yuan ze di 4.0.2 tiao mu qian wo guo gong yong dian li xi tong yi zhu bu you 1
宜由容量大的电网供电，也就是要提高供电电压的等级。还要看用电单位穿越之陌上花所在地点的电网提供什么电压方便和经济
yi you rong liang da de dian wang gong dian ye jiu shi yao ti gao gong dian dian ya de deng ji hai yao kan yong dian dan wei chuan yue zhi mo shang hua suo zai di dian de dian wang ti gong shen me dian ya fang bian he jing ji
。供电线路的回路多，则每回路的送电容量相应减少，可以降低供电电压等级。用电设备特性，例如波动负荷大，
gong dian xian lu de hui lu duo ze mei hui lu de song dian rong liang xiang ying jian shao ke yi jiang di gong dian dian ya deng ji yong dian she bei te xing li ru bo dong fu he da
供电电穿越之陌上花压和输送距离有关，也和供电线路的回路数有关。输送距离长，为降低线路电压损失，宜提高供电电压等级
gong dian dian chuan yue zhi mo shang hua ya he shu song ju li you guan ye he gong dian xian lu de hui lu shu you guan shu song ju li chang wei jiang di xian lu dian ya sun shi yi ti gao gong dian dian ya deng ji
第四章 电压选择和电能质量第4.0.1条用电单位需要的功率大，供电电压应相应提高，这是一般规律。选择
di si zhang dian ya xuan ze he dian neng zhi liang di 4.0.1 tiao yong dian dan wei xu yao de gong lv da gong dian dian ya ying xiang ying ti gao zhe shi yi ban gui lv xuan ze