PRIMARY VOLTAGE TRANSFORMER MODULE/ WANDLER MODULE ( POSITON NO. 224. 1 ) FOR POWER CONVERTER ( GTO BASED ) OF 3- PHASE LOCOMOTIVE, 200V/ 4V AC AS PER CLW SPEC. NO. CLW/ ES/ 3/ 0001 ALT. D OR ABB ID NO. HIET401147R0001, TYPE UU A225 A11, NOMINAL RATING 200V AC 4 0V- 420 OHM.