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View Full Version : Transformers, Phase Converters and VFD



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  1. Ethanol powered electric - viable?
  2. What style plug for 3 ph equipment?
  3. 2 RPC's in parallel??
  4. Question about proper xformer connections?
  5. increasing VFD frequency higher than 60hz?
  6. Drive Isolation Transformer?
  7. Please confirm I can do this
  8. Motor Lead Identification
  9. Heater change for static converter?
  10. Competition for Phase Perfect ?
  11. Teco vfd
  12. Pony Start? No, its a Stallion Start
  13. Thanks to all
  14. blade welder static vs Vfd
  15. explanation of 3 phase motor wires l1, l2, l3?
  16. OT (Maybe) 115 V DC motor
  17. RPC idler motor running hot...why???
  18. 3 phase motor used as generator
  19. Wiring questions
  20. Brand of VFD that can be used like Phase Perfect
  21. 480v transformer for monarch 10ee modular?
  22. running 440v two speed saw on 220v single phase?
  23. I need some information on VFD Phase convertor
  24. Help! Older thread link redirects incorrectly.
  25. GE 440v four speed motor
  26. Phase conv. or VFD on drill press?
  27. Encoder help needed
  28. RPC's & Air Compressors
  29. Will this transformer work?
  30. Used Transformers & Electrical stuff (SF Bay Area)
  31. growling rpc
  32. RPC green 'on' button light fades out
  33. RUNNING A 460V motor. Transformer or rewind
  34. Can i use any of these contactors?
  35. Cedarburg rotary phase converter with cracked start cap
  36. VFD output: what should it look like?
  37. question about starting three phase 25hp moter
  38. Motor Clicking..Help
  39. 2 motors in parallel on single VFD?
  40. balancing RPC's
  41. VFD on/off?
  42. Programmable logic controller
  43. Transformer ??s
  44. Siemens Starter Wiring
  45. Fixing a fluorescent light ballast
  46. Good place to buy an RPC?
  47. How to power used surface grinder ?
  48. ?? on transformer vs. run capacitors
  49. vfd for use with automation - basic help needed
  50. Line Reactor on VFD single phase input?
  51. VFD for Birdgeport R2E3 spindle
  52. Arco Self-Starting Rotary
  53. "True sinusoidal" power from a VFD
  54. Another 10hp American Rotary thread
  55. Conveting hz to rpm on a vfd?
  56. Allen Bradley Starter off Burke #3 ques
  57. Henry A. Steelman converter revisited
  58. Looking for some clarity on motor efficiencies.
  59. Hitachi VFD question
  60. static not working?
  61. Need help with RPC addition (already have 1 30hp)
  62. Looking for "special" capacitor
  63. FactoryMation and Dealerselectric recommend different VFD's; Help me choose
  64. Falling voltage resistor
  65. Need some information on building a 10hp RPC.
  66. What happens when you run a 440V motor on 220V?
  67. Need help with horizontal saw wiring
  68. How to run 50 hz motor on 60 hz
  69. Inverter I am going to modify (pics)
  70. AC vs DC caps?
  71. how do i switch Fwd and Rev on mill??
  72. 46A resistive load OK on 30HP RPC?
  73. VFD display consoles built from scratch
  74. Someone check my math. 40HP 3ph calc
  75. Wind energy again. Power storage solutions and transient spikes
  76. AC Tech SMVector vs. TECO MA7200 VFD?
  77. who uses motor overloads?
  78. In need of DC motor advice for Lathe.
  79. 1hp 3ph 240 volt south bend lathe
  80. RPC Tuning Problem
  81. What do isloation transformers cost just to "sit"
  82. DoAll Bandsaw - Need to run on Single Phase
  83. Tow RPCs in parallel
  84. VFD or phase converter
  85. trying to figure out VDF and RPCs
  86. SS PH Converter no Amps from created phase?
  87. Need help sizing VFD for Lagun
  88. Motor wiring
  89. well buying a phase converter finally and have one last ?
  90. Compressors started today
  91. Voltage imbalance causing VFD issues?
  92. 220V VFD Output stepped up to 480V
  93. Emerson Commander SK VFD - any good?
  94. Howell Electric motor wiring diagram?
  95. VFD, conditions for max/min heat generated
  96. Deckel FP1 plus VFD Can i use the control buttons
  97. What Makes a Motor a Good Choice for an RPC Idler Motor?
  98. Index Model 40 mill, with 2 speed motor
  99. Yaskawa 606PC3 VFD...single phase input?
  100. New to me issue
  101. Transformer box/plug/outlet arrangement
  102. Variable speed for belt sander?
  103. Did I get a bad VFD?
  104. need for a mag starter
  105. VDF certified motors
  106. Need 220v to 110v transformer and help
  107. Pony motor started, how to wire compressor
  108. Motor starter and rotary switch
  109. Probably dumb question
  110. Transformer questions.
  111. Inrush Current on lighting transformer
  112. More caps. needed?
  113. Yet more VDF questions
  114. I started my 10 hp idler
  115. Blown start capacitor on RPC
  116. how much h.p. for a 300 amp welder?
  117. Two motor RPC designs?
  118. 3hp VFD ok for a 1 1/2hp 3 phase motor?
  119. Need help w/ Clausing Colchester
  120. 220 on each leg 3 phase?
  121. VFD with 2 speed motor...any complexities ?
  122. Digital converter or VFD
  123. Help me choose a 440 volt VFD
  124. Need Help with my RPC
  125. How to hook up a VFD.
  126. SO Power Cords
  127. 240-414V without a transformer
  128. Proper electric motor lubrication?
  129. Size of starting capacitor for 1/2hp, 120vac motor?
  130. Motor starter problems
  131. teco ev series vfd external potentiometer settings?
  132. Wild Leg Question
  133. Questions for Rotocon (Ronk) phase converter users
  134. Are 1 phase to 3 phase motor starters VFDs?
  135. Running 1.5HP motor on 1HP VFD?
  136. 208V motor on 240 not good- but why?
  137. 230/460 motor wiring question
  138. Current carrying capacity of buck transformer setup.
  139. Help deciding on VFD.
  140. Will RPC run on single live and neutral supply?
  141. How to protect small VFD from chips/coolant
  142. GE Polyphase wattmeter P-3 - Useful?
  143. Got the RPC hooked up, but ......
  144. RPC and 3 Phase questions
  145. Problems starting lathe off the RPC
  146. Altivar 31 hooked up for the first time
  147. VFD Recommendation
  148. Run compressor off RPC or single phase?
  149. Need help building my 10hp Rpc
  150. RPM nomenclature
  151. best prices on capacitors
  152. Need more power...
  153. Which one of these motors will be the best for an idler??
  154. RPC output
  155. 17xx idler vs 34xx idler ??
  156. 3 phase generator
  157. Need assistance/advice in bucking down voltage (for the layman).
  158. Woohoo- got me a 20hp 3 phase motor, now what?
  159. I need an honest answer on a VFD or RPC
  160. hmm, can't post the attachment.
  161. What size RPC?
  162. DC Motor controller - 240 volts?
  163. Single phase speed control
  164. Vfd makeing motor vibrate help
  165. Machine Tool Control Transformers 440/220
  166. Lordy- just learned I need a 15hp rpc
  167. 3ph welder on my rotary converter
  168. Rotary phase conv. Question
  169. Help with schematic
  170. Need some help 3-phase to 1-phase motor change
  171. Electrical Issue - Motor putting noise on ground?
  172. Can I get true single phase from 3 phase?
  173. What do I have here? -hardinge HCNC/fagor 8025
  174. two 3 phase questions
  175. Three phase heating elements
  176. How come this works
  177. smoked idler motor
  178. Need start/run switch for my Jet lathe
  179. 10ee start-up problem
  180. Motor stall and vfd"s
  181. Newb VFD hook-up questions
  182. Chinese 3hp VFD to 3hp motor
  183. yet another neophyte RPC question
  184. What to use for a PM 1200HD 2hp drill press?
  185. Cooling Fan 10hp Motor
  186. 1 hp static converter for a 1/2 hp three phase motor?
  187. Do VFD's destroy motor bearings???
  188. VFD drive help
  189. Engine Crank Stop
  190. question with my rpc
  191. Converting SB13 from 3ph to 1ph 220v? Easy?
  192. help wiring Birmingham to FM50
  193. NEED HELP: What is missing from this setup?
  194. Noise Reduction: 3450 RPM Idler Cooling Fan
  195. OT:Onan electrical attachment
  196. amp clamp
  197. VFD changeover query...
  198. 3KVA Transformer Protection
  199. do you leave you vfd's on
  200. another static converter balance question
  201. auto start for rpc
  202. RPC Plans anyone
  203. VFD Choices
  204. Compressor Duty VFD for 3ph
  205. 15hp rotary converter problems
  206. Basics of 3 phase converters
  207. VFD vs Rotary converter current draw
  208. How Can I Fix Excessive Current Imblance in Static Converter
  209. Vfd
  210. replacement motor terminal box?
  211. Workshop on a VFD...
  212. motor size
  213. unique 3phase
  214. How to wire a two speed motor
  215. VFD voltage?
  216. 1-Phase input AC Drive for 2 HP motor
  217. Three-step resistive starter
  218. Rpc rpm
  219. RPC idler won't come up to speed
  220. basic remote controls for teco jnev 202 H1
  221. How do you determine HP with limited info?
  222. 3 phase drum switch wiring
  223. Electric Motor Question
  224. Ground Bars for RPC Terminal Connections?
  225. Converting two phase to three phase. HELP
  226. new? lower?? prices and sources for braking resistors?
  227. Will this motor work for a 3 phase convertor?
  228. VFD on cold saw.. max frequency ?
  229. Generator Speed
  230. Mitsubishi spindle drive error codes?
  231. Need help! Hitachi SJ200
  232. help needed with mill/vfd
  233. Pushing the limits of an RPC. How far would you go?
  234. 30 amp lighting contactor question
  235. Possibly a motor issue, not sure yet
  236. ebay
  237. Insulation resistance of transformer
  238. Ring circut for 3ph 240v outlets in 40x60 shop?
  239. can I run a 1hp motor with a 3hp vfd?
  240. How to use a Sencore CA55 capacitor analyser (
  241. Washburn Transformer
  242. Recommend VFD for hobby BP mill
  243. CC/CV welder question...
  244. help identify this conrol box
  245. Does anyone here use a PhaseAble Enabler?
  246. Wiring question for Ronk RPC
  247. Transformer wiring help
  248. Electrical questions on Bridgeport
  249. ot kinda:capaciters to save on bill
  250. Aussie RPC project.