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View Full Version : Transformers, Phase Converters and VFD



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  1. Origins of rotary converters?
  2. Does it matter if rotor is flipped 180 degrees in stator(motor housing)??
  3. Function of the DPDT Relay (Grainger 5X847) in Carlson Circuit?
  4. Power cord recommendations
  5. Wiring a 12 lead 10hp Yaskawa motor to VFD - need help
  6. Need recommendation on VFD or RPC for 1/2hp instrument lathe
  7. 208/220 wired machine on 240, ok?
  8. cornverter working but what about control voltage ?
  9. 3 phase converter Question......Solid State
  10. What size enclosure should I buy for my RPC?
  11. Motor confusion
  12. OT: looking to hire inverter controlled borehole pump in Ireland
  13. surface grinder - changover from AB 509 to AB 709
  14. Blount Lathe Restoration - part 3 - motor replacement
  15. Loooking for wiring diagram for Reversing Drum Switch and 110 Motor
  16. Questions regarding running a 3 Ph rotary phase converter with a sutably sized vfd
  17. Plain and simple... the setup needed for clausing kondia fv1 with dynapath delta 20
  18. Phase Perfect integrated into shop wiring
  19. transformer size?
  20. My ARCO Roto-phase died...
  21. run capacitors used as start capacitors??
  22. Turret Drill on a VFD
  23. molded case breaker
  24. AGIE AC220 240 volts Phase Converter
  25. Making sure I have right set up.. correct motor, VFD, application and limitations..
  26. The most common 3-phase outlet/plug
  27. Air compressor capacitor died?
  28. soft start recommendations
  29. What size single phase breaker to use with RPC?
  30. Question for those that have pre-made RPC Panels like American Rotary,etc
  31. Books on trouble shooting electric motors
  32. Easy question to answer for you guys, Im sure.
  33. Internally reconnecting single voltage motor
  34. Start and Run Capacitors voltage?
  35. Crazy High Pitched Tone from CNC Mill
  36. Selecting the correct VFD for my new mill
  37. Wrong motor speed
  38. General electrical question...220v/440v
  39. I only have 60 amps in my garage will this be enough?
  40. Rpm's for an RPC
  41. 10hp RPC Build
  42. Pushing it too far or ok to try?
  43. RPC 240 in to 415 out ?
  44. Wiring Problem,using solid wire?
  45. Can I use a 3 phase breaker panel instead of a fused disconnect at each machine?
  46. Rotery Phase convertor
  47. Can one use WD40 to clean idler motor
  48. VFD & belt setup
  49. Commonly used fuse types for RPCs
  50. Large 3PH Power Source
  51. Overload protection on a Rotary Phase Converter?
  52. 1140 vs 1725 vs 3450 RPM motor for air compressor
  53. wiring for my surface grinder motor
  54. Inexpensive pressure sensors
  55. need diagram for rpc 8 pin socket relay
  56. VFD on Logan DC chucker
  57. Which brand of static phase converter
  58. deleted
  59. Another what size motor question?
  60. Give generator a boost.
  61. found an idler motor
  62. RPC first step
  63. Control panels
  64. Powerflex 4 noob question
  65. TOSVERT-130 Inverter
  66. Baldor Series 15H Inverter Control acting dead?
  67. large pony start RPC
  68. Did I mess up buying this?
  69. Changing 3 phase servo drive to single phase?
  70. Running 480 from RFC
  71. motor voltage question
  72. Three Phase Breaker as Single Phase Protection?
  73. Need help hooking up Polyphase motor
  74. Trying to run 480 volt milling machine
  75. Just got a call about power factor device?
  76. 100amp Main breaker warm to the touch
  77. Effects of undersize heaters?
  78. Specs for a transformer?
  79. Pulling 120V off a rotary?
  80. Running a AC contactor on DC?
  81. RPC motor size info sought
  82. 480 3 phase to 220 3 phase.
  83. rpc wiring
  84. rpc output
  85. Question on VFD installation
  86. What gauge wire should I run to/from RPC?
  87. VFD lifespan?
  88. Can I run a CNC Mill on an RPC?
  89. Power up on a long dormant servo drive advice
  90. VFD switch box
  91. Enclosure
  92. Idle 15kV transformer uses how much power?
  93. Newall Constant Surface Speed DRO
  94. Is this the right heater?
  95. VFD selection
  96. Specialty toggle switch source wanted...
  97. wiring diagram for bridgeport 1hp motor
  98. Walker Turner gets a VFD
  99. A real wind generator. Country situation. Need power!
  100. More RPC questions
  101. Start to run.... idler sometimes changes direction
  102. A little help with 440v on a DoAll T&CGrinder
  103. Why not 2 motors with 1 VFD
  104. Lights shimmer while phase converter unloaded
  105. Digital Phase Converter
  106. VFD rated more than motor ?
  107. Run two motors off a single static converter??
  108. VFD with DRO
  109. Simple RPC motor control start stop switch logic
  110. First Post need RPC help
  111. VFD review
  112. Questions on my RPC
  113. RPC question
  114. Will this work as a transformer
  115. y vs delta in the wiring
  116. New guy - lots of questions !
  117. Box for VFD in home shop
  118. How to bump up the two low legs on a rotary phase converter?
  119. 3 wire control for Fuji VFD question
  120. What Size RPC do I Need?
  121. Drum switch troubles
  122. 3 ph motor sizing
  123. 3 phase motor problems
  124. need a big electrolytic capacitor - got one?
  125. static?
  126. Need three phase 440 from single phase 220
  127. wiring question with three phase
  128. VFD and Tree Vert Mill
  129. Wiring the shop for 3-phase power from Phase Perfect
  130. newb a$$-n-9 question
  131. new to RPC's need help
  132. Quick VFD question
  133. Possible load of idler motors available
  134. maytag neptune
  135. How do you hook up 2 RPC's together?
  136. start with VFD/run on 1-phase
  137. Looking for a transformer near Seattle
  138. vfd overload problem
  139. Trip relay tripping
  140. motor voltage ?
  141. VFD what do I need?
  142. AC motor problem
  143. Nimhcells for rebuilding cordless power tools
  144. Three phase step up transformer 480V
  145. Fuji Inverter FVRO15G7S
  146. Motor input volt
  147. Need help with a Ronk Phase converter
  148. How hot can a motor run safely
  149. Steelman H-A-S Phase Converter 20Hp- whats the largest motor it can run?
  150. a LITTLE HELP ON TIME VS CURRENT GRAPH FOR BREAKERS
  151. Another RPC question
  152. 20 HP motor too big?
  153. VFD to Yaskawa 3/phase servo drive?
  154. Universal Voltage 3-phase motor?
  155. Phase Converter Bogging Down when starting 2 speed motor in high speed
  156. Phazpak in place of start caps
  157. RPC generated leg problem
  158. instant reversing with a VFD ?
  159. Powering 12VDC winch on shop electrics
  160. Voltage limits for Mitsubishi/Daewoo CNC control
  161. 460 volt to 230 volt
  162. Choosing VFD
  163. wild leg not so wild
  164. VFd ~ 2 pole or 4 pole on a 2 speed motor?
  165. How much are RPC's worth?
  166. using run caps for start caps
  167. RPC sub panel?
  168. Any Convention in Wire Color?
  169. Clearing Confusion Over 220/440 & 220/380 Delta Wye Motors
  170. Probably a redundant question or 2...
  171. Cheap Resistor for Braking?
  172. Enco 1525 mill 3 ph with American Rotary phase converter
  173. Teco JNEV Remote Keypad for VFD
  174. Troubleshooting a TB Woods VFD
  175. Balanced?
  176. Baldor Motor
  177. Selecting Transformer For RPC
  178. Cost of running RPC setup?
  179. 2hp RPC + 5hp 3phase idler =7hp RPC?
  180. vfd help
  181. Power Problems
  182. Do these amp readings sound right?
  183. Single Live RPC Design
  184. Hitachi SJ200-007NFU2 on SB Heavy 10
  185. How fast is too fast with a VFD?
  186. Slight OT, possible motor problem
  187. VFD Remote Control Setups
  188. Hitachi VFD With Blank Display
  189. RPC Problem
  190. Buying a used motor
  191. Voltage from Rotary Phase Converter
  192. TECO vfd question...
  193. Residential panel and breakers
  194. 1ph 240- 3ph 575
  195. correct 3 phase wiring
  196. 30 hp motor problem
  197. 4 speed motor help- wire ID?
  198. Wire gauges / amperage for rotary converters
  199. OT: step down transformer sizing
  200. Motor Whistles When Connected to VFD
  201. Line to Line voltage on a new RPC ? 6% ?
  202. Wiring diag. for a Doall Blade Welder?
  203. Control Transformer Needed Badly!!!!
  204. Bypass Drum Switch to Use VFD?
  205. Quieting a VFD driven motor?
  206. Spindle speed - how to accurately display
  207. Way Ot
  208. Motor Problem
  209. Need help wiring inherited Temco RPC
  210. rerversing a 1 ph motor
  211. Inverter Drive For Small Lathe
  212. Testing 3 phase Motor and Wiring
  213. 7.5 hp rpc
  214. Puzzling VFD/motor interaction
  215. Boston Gear Ratiotrol
  216. Need new lathe motor (?)
  217. Capacitance for solar system
  218. KO Lee cnc surface grinder eletrical diagram needed
  219. buck transformer
  220. 440v to 240v conversion ++
  221. VFD And AC Synchronous Motors: A question
  222. VFD and motor max hZ question/opinion
  223. How about rotary phase converters?
  224. Opinion on Static Phase Converters
  225. Junk yard 3 phase motor ??
  226. Running motor with 208 V on 240 V feed
  227. Starters and relays
  228. VMC battery charging
  229. Derating VFD
  230. two motors running one machine
  231. VFD on a rotary converter ?
  232. Best Place to buy a VFD
  233. ? Use undersized VFD to start rotary converter
  234. Maybe an Old Post..Need CNC phase converter
  235. Gathering Parts - Quick Question!
  236. 240-480 volts 3ph transformer with phase converter?
  237. 25hp rpc amp needs
  238. VFD Settings help needed
  239. Need Help wiring old lathe
  240. Removing a conduit box
  241. How do I find generated leg and control circuit?
  242. can I use this motor for an "add on" for my rpc
  243. Oversizing RPC
  244. Myford ML 10 + VFD ?
  245. Pony start + idler + transformer = ???
  246. Proper RPC Grounding
  247. Utility company transformer sizing
  248. Graziano SAG 12 Step up Transformer?
  249. I need a VFD Guru's advice
  250. Additive, Subtractive Xfrmr and angular displacement