◎  三相调压单硅移相触发器模块 (SX-JKA)

THREE PHASE VOLTAGE-REGULATION SCR TYPE PHASE-SHIFT TRIGGER MODULE (SX-JKA)

◆ SX-JKA 在三相调压同步变压器模块 TB-3A 的支持下 , 即可实现三相反并联单向可控硅所组成电路输出交流电压的无级可调。

◆ With the support of the three phase voltage regulation synchronous transformer module (TB- 3A), SX-JKA can continuously adjust the AC output voltage through the circuit composed of three sets of reverse-parallel SCR thyristors.

图 A：SX-JKA、TB-3A 和 6 只单向可控硅组成三相交流调压电路图

（参见下面图 A 改进电路图）

Figure A: The three phase AC voltage regulation circuit diagram consisting of SX-JKA, TB-3A and six SCR thyristors

 (the improved circuit diagram of Figure A shows below)