基本结构
YOQ1(DZ47)自动电源切换开关主要由电源转换执行断路器（包括常用电源
执行断路器QN和备用执行断路器QR各一台），自动控制盒，电动操作机构等
部分组成。断路器QN和QR均保持原有的过流保护和短路保护功能，可同时作
为通，断及保护主电器之用。
- 装配接线
接线时，常用电源N应接如常用电源执行断路器QN，备用电源R应接如备用
电源执行短路器QR。当QN和QR为四级断路器，接线方式按接线图（反面），其
QN和QR的1,，3,5为三相进线端，2,4,6为相出线端，7为零线进线端，8为零线
出线端。若选用断路器为三级断路器，则必须将常用电源（N）的零线NN和备用
电源（R）的零线NR同时接到三级专用接线零端子上。
双电源切换开关自动控制器的工作电源取自断路器QN和QR的进线端和零线
若选用断路器为三级断路器，必须要接两路来的零线即NN和NR，该三级专用接线
零端子在两台短路器中间。在自动电源切换开关安装，接线过程中，切不要把原接
接在进线端的本机控制线甩掉，碰断和短路。www.yoybdq.com
YOQ1(DZ47)型自动电源切换开关使用于交流50HZ，额定工作电压380V
及以下的双电源供电系统，用自动或手动造做方式来完成常用电源之间的切换。
该切换开关主要用于医院，商店，银行，化工，治金，搞层建筑，军事设施等
不允许断电的重要场合。
YOQ1 dual power automatic transfer switch (DZ47): www.shyosdy.com
Basic structure
YOQ1 (DZ47) automatic power supply switch is mainly composed of a power conversion circuit breakers (including the common power supply
Implementation of QN circuit breaker and alternate executive circuit breaker QR each one), automatic control box, electric operation mechanism
Parts. Circuit breaker QN and QR were maintained over current protection and short circuit protection function of the original, at the same time as the
To pass, fault and the main electrical appliances with protection.
Assembly line
When wiring, power N shall be such as the commonly used power execution circuit breaker QN, R should be as standby standby power supplywww.shrmyb.com
Power circuit breaker QR. When QN and QR four circuit breaker, connection mode according to the wiring diagram (negative), thewww.shrmhz.com
QN and QR, 1, 3,5 for the three-phase input, 2,4,6 as phase terminals, 7 as the zero line into the line side, 8 as the zero line
The outlet end. If the selection of circuit breaker is three level of circuit breaker, it must be a common power supply (N) of the zero line NN and the standbywww.kawa10.com
Power supply (R) of the zero line NR also received three dedicated wiring of zero.
Line from the circuit breaker QN and QR dual power switch power supply automatic controller end and the zero line
If the selection of circuit breaker for three circuit breakers, must connect two to zero line NN and NR, the three level special wiring
Zero terminal in the middle two circuit breaker. Installed in the automatic power supply switch, wiring process, must not be the originalwww.shyohz.com
After the machine control line into the line in the end off, break and short circuit.
