继电器电压与电流关系？ gb/t 21711.1-2008 基础机电继电器 第1部分:总则与安全要求 对应 书号/标准号： gb/t 21711.1-2008 中文标准名称/书名： 基础机电继电器 第1部分:总则与安全要求 英文标准名称： 页数： 48 ics分类号： 29.120.70%31.220.99 被替代标准号： 采用标准： iec 61810-1-2003,idt 中标分类号： l25 5.2 operative range the operative range of a relay coil can be specified either according to 5.2.1 or 5.2.2. 5.2.1 the recommended operative range is to be specified according to one of two classes: class 1: 80 % to 110 % of the rated coil voltage (or range). class 2: 85 % to 110 % of the rated coil voltage (or range). note where a rated coil voltage range applies, the operative range is from 80 % (or 85 %) of the lower limit to 110 % of the upper limit of the rated coil voltage range. the above values apply over the full ambient temperature range as declared by the manufacturer. where the manufacturer deviates from the recommended classes, he shall specify both the rated coil voltage (or range) and the corresponding operative range, see figure a.3. 5.2.2 as an alternative to the operative range specified in 5.2.1, the manufacturer may graphically represent the operative range against ambient temperature. this is achieved by describing the upper limit (u2 = limiting coil voltage) and the lower limit (u1 = operate voltage) of the operative range, as illustrated by figure a.3. 5.3 release the release values indicated below apply over the full ambient temperature range as declared by the manufacturer. a) dc relay where the operative range is specified according to 5.2.1, the release voltage of monostable relays shall be not lower than 5 % of the rated coil voltage (or the upper limit of the rated coil voltage range), see figure a.3. where the operative range is specified according to 5.2.2, the release voltage of monostable relays shall be not lower than 10 % of the lower limit u1 of the operative range, see figure a.3. b) ac relay the same conditions as for dc relays apply, except that a value of 15 % shall be used in place of 5 % or 10 %, respectively.查看更多
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