◎ 三相調(diào)壓單硅移相觸發(fā)器模塊 (SX-JKA)
THREE PHASE VOLTAGE-REGULATION SCR TYPE PHASE-SHIFT TRIGGER MODULE (SX-JKA)
◆ SX-JKA 在三相調(diào)壓同步變壓器模塊 TB-3A 的支持下 , 即可實現(xiàn)三相反并聯(lián)單向可控硅所組成電路輸出交流電壓的無級可調(diào)。
◆ 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.
圖 A：SX-JKA、TB-3A 和 6 只單向可控硅組成三相交流調(diào)壓電路圖
（參見下面圖 A 改進電路圖）
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)
