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View Full Version : Transformers, Phase Converters and VFD



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  1. RPC motor size info sought
  2. 480 3 phase to 220 3 phase.
  3. rpc wiring
  4. rpc output
  5. Question on VFD installation
  6. What gauge wire should I run to/from RPC?
  7. VFD lifespan?
  8. Can I run a CNC Mill on an RPC?
  9. Power up on a long dormant servo drive advice
  10. VFD switch box
  11. Enclosure
  12. Idle 15kV transformer uses how much power?
  13. Newall Constant Surface Speed DRO
  14. Is this the right heater?
  15. VFD selection
  16. Specialty toggle switch source wanted...
  17. wiring diagram for bridgeport 1hp motor
  18. Walker Turner gets a VFD
  19. A real wind generator. Country situation. Need power!
  20. More RPC questions
  21. Start to run.... idler sometimes changes direction
  22. A little help with 440v on a DoAll T&CGrinder
  23. Why not 2 motors with 1 VFD
  24. Lights shimmer while phase converter unloaded
  25. Digital Phase Converter
  26. VFD rated more than motor ?
  27. Run two motors off a single static converter??
  28. VFD with DRO
  29. Simple RPC motor control start stop switch logic
  30. First Post need RPC help
  31. VFD review
  32. Questions on my RPC
  33. RPC question
  34. Will this work as a transformer
  35. y vs delta in the wiring
  36. New guy - lots of questions !
  37. Box for VFD in home shop
  38. How to bump up the two low legs on a rotary phase converter?
  39. 3 wire control for Fuji VFD question
  40. What Size RPC do I Need?
  41. Drum switch troubles
  42. 3 ph motor sizing
  43. 3 phase motor problems
  44. need a big electrolytic capacitor - got one?
  45. static?
  46. Need three phase 440 from single phase 220
  47. wiring question with three phase
  48. VFD and Tree Vert Mill
  49. Wiring the shop for 3-phase power from Phase Perfect
  50. newb a$$-n-9 question
  51. new to RPC's need help
  52. Quick VFD question
  53. Possible load of idler motors available
  54. maytag neptune
  55. How do you hook up 2 RPC's together?
  56. start with VFD/run on 1-phase
  57. Looking for a transformer near Seattle
  58. vfd overload problem
  59. Trip relay tripping
  60. motor voltage ?
  61. VFD what do I need?
  62. AC motor problem
  63. Nimhcells for rebuilding cordless power tools
  64. Three phase step up transformer 480V
  65. Fuji Inverter FVRO15G7S
  66. Motor input volt
  67. Need help with a Ronk Phase converter
  68. How hot can a motor run safely
  69. Steelman H-A-S Phase Converter 20Hp- whats the largest motor it can run?
  70. a LITTLE HELP ON TIME VS CURRENT GRAPH FOR BREAKERS
  71. Another RPC question
  72. 20 HP motor too big?
  73. VFD to Yaskawa 3/phase servo drive?
  74. Universal Voltage 3-phase motor?
  75. Phase Converter Bogging Down when starting 2 speed motor in high speed
  76. Phazpak in place of start caps
  77. RPC generated leg problem
  78. instant reversing with a VFD ?
  79. Powering 12VDC winch on shop electrics
  80. Voltage limits for Mitsubishi/Daewoo CNC control
  81. 460 volt to 230 volt
  82. Choosing VFD
  83. wild leg not so wild
  84. VFd ~ 2 pole or 4 pole on a 2 speed motor?
  85. How much are RPC's worth?
  86. using run caps for start caps
  87. RPC sub panel?
  88. Any Convention in Wire Color?
  89. Clearing Confusion Over 220/440 & 220/380 Delta Wye Motors
  90. Probably a redundant question or 2...
  91. Cheap Resistor for Braking?
  92. Enco 1525 mill 3 ph with American Rotary phase converter
  93. Teco JNEV Remote Keypad for VFD
  94. Troubleshooting a TB Woods VFD
  95. Balanced?
  96. Baldor Motor
  97. Selecting Transformer For RPC
  98. Cost of running RPC setup?
  99. 2hp RPC + 5hp 3phase idler =7hp RPC?
  100. vfd help
  101. Power Problems
  102. Do these amp readings sound right?
  103. Single Live RPC Design
  104. Hitachi SJ200-007NFU2 on SB Heavy 10
  105. How fast is too fast with a VFD?
  106. Slight OT, possible motor problem
  107. VFD Remote Control Setups
  108. Hitachi VFD With Blank Display
  109. RPC Problem
  110. Buying a used motor
  111. Voltage from Rotary Phase Converter
  112. TECO vfd question...
  113. Residential panel and breakers
  114. 1ph 240- 3ph 575
  115. correct 3 phase wiring
  116. 30 hp motor problem
  117. 4 speed motor help- wire ID?
  118. Wire gauges / amperage for rotary converters
  119. OT: step down transformer sizing
  120. Motor Whistles When Connected to VFD
  121. Line to Line voltage on a new RPC ? 6% ?
  122. Wiring diag. for a Doall Blade Welder?
  123. Control Transformer Needed Badly!!!!
  124. Bypass Drum Switch to Use VFD?
  125. Quieting a VFD driven motor?
  126. Spindle speed - how to accurately display
  127. Way Ot
  128. Motor Problem
  129. Need help wiring inherited Temco RPC
  130. rerversing a 1 ph motor
  131. Inverter Drive For Small Lathe
  132. Testing 3 phase Motor and Wiring
  133. 7.5 hp rpc
  134. Puzzling VFD/motor interaction
  135. Boston Gear Ratiotrol
  136. Need new lathe motor (?)
  137. Capacitance for solar system
  138. KO Lee cnc surface grinder eletrical diagram needed
  139. buck transformer
  140. 440v to 240v conversion ++
  141. VFD And AC Synchronous Motors: A question
  142. VFD and motor max hZ question/opinion
  143. How about rotary phase converters?
  144. Opinion on Static Phase Converters
  145. Junk yard 3 phase motor ??
  146. Running motor with 208 V on 240 V feed
  147. Starters and relays
  148. VMC battery charging
  149. Derating VFD
  150. two motors running one machine
  151. VFD on a rotary converter ?
  152. Best Place to buy a VFD
  153. ? Use undersized VFD to start rotary converter
  154. Maybe an Old Post..Need CNC phase converter
  155. Gathering Parts - Quick Question!
  156. 240-480 volts 3ph transformer with phase converter?
  157. 25hp rpc amp needs
  158. VFD Settings help needed
  159. Need Help wiring old lathe
  160. Removing a conduit box
  161. How do I find generated leg and control circuit?
  162. can I use this motor for an "add on" for my rpc
  163. Oversizing RPC
  164. Myford ML 10 + VFD ?
  165. Pony start + idler + transformer = ???
  166. Proper RPC Grounding
  167. Utility company transformer sizing
  168. Graziano SAG 12 Step up Transformer?
  169. I need a VFD Guru's advice
  170. Additive, Subtractive Xfrmr and angular displacement
  171. Question about placement of RPC
  172. Testing/Identifying Six-wire Two-speed Single-voltage Motors
  173. Most basic rpc for dummies (like me)
  174. VFD's and CNC's: A couple questions
  175. dual idler rpc question
  176. Better than half way there
  177. Wiring Weiler LZ 280 help
  178. RPC Help needed!
  179. 230/1 to 480/3 to power AB 1395 DC Drive
  180. braking circuit for a 220 motor
  181. New 3 phase service-What voltage?
  182. Need 3 phase power
  183. HP Limitations
  184. What is the function of this MG set?
  185. Mitsubishi vfd
  186. Manual needed for Volkmann AD-2 vfd
  187. 3 phase 2 Speed motor wiring help?
  188. Can I use a vfd as a phase converter for a cnc lathe
  189. Minimum hp on RPC
  190. Dumb questions on phase converters
  191. Rotary vs Static - Need Help with Project
  192. Newbie in need of help! Drum switch redo!
  193. remote start/stop wire size
  194. Wiring up 4 or 5 machines using a RPC?
  195. dead baldor inverter, need help please.
  196. VFD Information
  197. Leary about a static
  198. WNY Supply - Fed Up and Need Help
  199. RPC and Magnetic Brake Problem
  200. What VFD for 2.2kw Spindle 3ph
  201. Who makes dust proof VFDs?
  202. 240 3ph to 460 3ph?
  203. Need advice on Leeson VFD for Clausing 6913
  204. 3 welder on rotory converter???
  205. Rheostat question for 2hp DC motor
  206. Phase Perfect Questions
  207. OT: 3 phase motor???'s
  208. Need Help with VFD and Latching Start
  209. Can I get savings by changing motor?
  210. Best Deals on 460V VFD's and 2 Spd. Mtr/VFD?
  211. Newbe needs help.
  212. Toshiba VF-S9 VFD voltage change?
  213. new to me drive supplier
  214. VFD - torque loss at low rpms and is this possible?
  215. Shop made line reactor
  216. Build your own VFD
  217. Rewiring 3 Phase Motor
  218. Wiring 3ph VFD to 1ph supply?
  219. Any experience with Cutler Hammer AF93 VFD
  220. Wtb 25-30hp Rpc
  221. Need Help with F4 KEB
  222. Power a VFD from shared circuit?
  223. VFD. Buy it now or buy it later?
  224. 120/240 motor generators slightly off topic
  225. Cathode Protection half sell
  226. MANUAL NEEDED: Allen Bradley IP20 161S
  227. Will this European Motor Work in the U.S.?
  228. 3 phase plus neutral
  229. TECO AC drive questions or comments needed
  230. VFD and inverter drive motor?
  231. Dead Circuit in shop
  232. AB motor control
  233. Ratcheting Crimping Tool
  234. single vfd running two motors?
  235. Single phase motors May run off VFDs!
  236. Mfg Comments on Multi-motor VFD applications
  237. Integrating VFD with X Power Feed
  238. Tachometer Display for Mill
  239. Useful Motor and VFD tutorial
  240. 20 kw generator
  241. DrivesWarehouse.com
  242. VFD and Whitcomb Blaisdell
  243. Buying used run/start Caps
  244. Yaskawa servopack rotation change
  245. VFD Help... GE af300 mini
  246. Wiring Static Phase Converter to Drum Switch
  247. VFD on Surface Grinder (two motors on 1 VFD)?
  248. VFD's and braking
  249. 10hp RPC to start 10hp motor.
  250. My First 5hp Phase Converter