ZD 系列中心集电器是将电流从固定的机座传送动水平转到设备上的传输装置。它分为:无防护外壳下传动;无防护外壳上传动;及有防护外壳下传动的三种类型。有防护外壳下传动特别适用于在圆形料场堆取料机上使用。
This collecter is the transmission device for transferring current from fixed pedestal to equipment. It has three types: down transmission without protection shield, upper transmission with protection shield. The down transmission with protection shield type is mainly used for round stockyard / reclaimer.
1.1型号
1.1 Type
型号说明如下:
ZD □ / □ □ / □ □ / □

中心集电器 滑环数（小）center collecter amount for traveler(small)

型 式 滑环电流（小）type current for traveler(small)

滑环电流（大） 滑环数（中）current for traveler(large) amount for traveler(middle)

滑环数（大） 滑环电流（中）amount for traveler(large) current for traveler(middle)

注1: 型式“A”为无外壳下传动。
型式“B”为无外壳下传动。
型式“C”为有防护外壳，防护等级IP54下传动。
Note 1: Type A is down transmission without shield.
Type B is down transmission without shield.
Type C is down transmission with protection shield for IP54 class.
注2：大滑环额定电流400A、630A；中滑环额定电流63A，小滑环额定电流10A。电压等级为低压500伏以下，高压到10000伏。
Note 2: Rated current for large traveler is 400A and 630A, middle traveler is 63A,small traveler is 10A. Class for voltage is 500V for low voltage and 10000V for high voltage.
1.2 中心集电器的工作条件
1.2 Working condition
a)海拔不超过2000米。
a)Elevation is no more than 2000m.
b)环境温度-40～+40℃带防护外壳的允许户外工作。
b)Outdoor working is permitted with protection shield for -40～+40℃ temperature.
c)空气相对湿度：湿月的月平均大相对湿度应为90﹪，同时该月的月平均低温度应为25℃。
c)Relative humidity: average max, relative humidity for most humidity month is 90﹪ and average min, temperature is 25℃.
d)无炸性危险，无导电尘埃及腐蚀性气体场所。
d)Without explode dangerous, electric conduction dust and corrosion air.