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View Full Version : Transformers, Phase Converters and VFD



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  1. comparisons of teco drives?
  2. what does "protected chassis enclosure" mean?
  3. Best way to power a 3 HP Lathe?
  4. Homemade Rotary phase converter ISSUES!
  5. 10 HP rotary phase converter
  6. Steorn's E-Orbo Electric Motor - Some very interesting characteristics!
  7. Size VFD 4 China Mill
  8. best inexpensive vfd?
  9. Can a 34oo somthing RPM motor work?
  10. phase converter.
  11. VFD for Bridgeport Series 1 /2HP/ 2J VariSpeed
  12. Configure 2 single phase buck/boost Xformers for 3PH operation
  13. cnc mill change 440 t0 220
  14. VFD: effective 50Hz/60Hz transformer?
  15. rpc setup questions
  16. 3 phase to 1 phase transformer question
  17. Practical Spindle/VFD Speed Range?
  18. Motor rewinds?
  19. What is meant my 200/220V input
  20. air compressor electrical problem
  21. can this motor be rewired?
  22. 1ph vs 3ph motor on a lathe
  23. Need help a VFD/transformer solution or a new motor...help?
  24. RPC starting problem
  25. Digital controller?
  26. Whats the best way to get 460 3 phase?
  27. online determination of source impedance by means of of single point measearement
  28. 240 to 440 VFD, Is there such a device?
  29. Hitachi SJ200 Relay function question
  30. Kohler Generator Help Needed
  31. Overload tripping but why?
  32. DC Mill Duty Motors
  33. VFD Setup with Remote on 12 X 40 Lathe
  34. 5-7hp lathe on 230 1 phase help please
  35. Euro-tech Booster RPC ???
  36. Q on moving residential electric meter
  37. Hard starting three Phase Lathe
  38. Another Explanation of RPCs, and Their Capabilities
  39. Ethanol powered electric - viable?
  40. What style plug for 3 ph equipment?
  41. 2 RPC's in parallel??
  42. Question about proper xformer connections?
  43. increasing VFD frequency higher than 60hz?
  44. Drive Isolation Transformer?
  45. Please confirm I can do this
  46. Motor Lead Identification
  47. Heater change for static converter?
  48. Competition for Phase Perfect ?
  49. Teco vfd
  50. Pony Start? No, its a Stallion Start
  51. Thanks to all
  52. blade welder static vs Vfd
  53. explanation of 3 phase motor wires l1, l2, l3?
  54. OT (Maybe) 115 V DC motor
  55. RPC idler motor running hot...why???
  56. 3 phase motor used as generator
  57. Wiring questions
  58. Brand of VFD that can be used like Phase Perfect
  59. 480v transformer for monarch 10ee modular?
  60. running 440v two speed saw on 220v single phase?
  61. I need some information on VFD Phase convertor
  62. Help! Older thread link redirects incorrectly.
  63. GE 440v four speed motor
  64. Phase conv. or VFD on drill press?
  65. Encoder help needed
  66. RPC's & Air Compressors
  67. Will this transformer work?
  68. Used Transformers & Electrical stuff (SF Bay Area)
  69. growling rpc
  70. RPC green 'on' button light fades out
  71. RUNNING A 460V motor. Transformer or rewind
  72. Can i use any of these contactors?
  73. Cedarburg rotary phase converter with cracked start cap
  74. VFD output: what should it look like?
  75. question about starting three phase 25hp moter
  76. Motor Clicking..Help
  77. 2 motors in parallel on single VFD?
  78. balancing RPC's
  79. VFD on/off?
  80. Programmable logic controller
  81. Transformer ??s
  82. Siemens Starter Wiring
  83. Fixing a fluorescent light ballast
  84. Good place to buy an RPC?
  85. How to power used surface grinder ?
  86. ?? on transformer vs. run capacitors
  87. vfd for use with automation - basic help needed
  88. Line Reactor on VFD single phase input?
  89. VFD for Birdgeport R2E3 spindle
  90. Arco Self-Starting Rotary
  91. "True sinusoidal" power from a VFD
  92. Another 10hp American Rotary thread
  93. Conveting hz to rpm on a vfd?
  94. Allen Bradley Starter off Burke #3 ques
  95. Henry A. Steelman converter revisited
  96. Looking for some clarity on motor efficiencies.
  97. Hitachi VFD question
  98. static not working?
  99. Need help with RPC addition (already have 1 30hp)
  100. Looking for "special" capacitor
  101. FactoryMation and Dealerselectric recommend different VFD's; Help me choose
  102. Falling voltage resistor
  103. Need some information on building a 10hp RPC.
  104. What happens when you run a 440V motor on 220V?
  105. Need help with horizontal saw wiring
  106. How to run 50 hz motor on 60 hz
  107. Inverter I am going to modify (pics)
  108. AC vs DC caps?
  109. how do i switch Fwd and Rev on mill??
  110. 46A resistive load OK on 30HP RPC?
  111. VFD display consoles built from scratch
  112. Someone check my math. 40HP 3ph calc
  113. Wind energy again. Power storage solutions and transient spikes
  114. AC Tech SMVector vs. TECO MA7200 VFD?
  115. who uses motor overloads?
  116. In need of DC motor advice for Lathe.
  117. 1hp 3ph 240 volt south bend lathe
  118. RPC Tuning Problem
  119. What do isloation transformers cost just to "sit"
  120. DoAll Bandsaw - Need to run on Single Phase
  121. Tow RPCs in parallel
  122. VFD or phase converter
  123. trying to figure out VDF and RPCs
  124. SS PH Converter no Amps from created phase?
  125. Need help sizing VFD for Lagun
  126. Motor wiring
  127. well buying a phase converter finally and have one last ?
  128. Compressors started today
  129. Voltage imbalance causing VFD issues?
  130. 220V VFD Output stepped up to 480V
  131. Emerson Commander SK VFD - any good?
  132. Howell Electric motor wiring diagram?
  133. VFD, conditions for max/min heat generated
  134. Deckel FP1 plus VFD Can i use the control buttons
  135. What Makes a Motor a Good Choice for an RPC Idler Motor?
  136. Index Model 40 mill, with 2 speed motor
  137. Yaskawa 606PC3 VFD...single phase input?
  138. New to me issue
  139. Transformer box/plug/outlet arrangement
  140. Variable speed for belt sander?
  141. Did I get a bad VFD?
  142. need for a mag starter
  143. VDF certified motors
  144. Need 220v to 110v transformer and help
  145. Pony motor started, how to wire compressor
  146. Motor starter and rotary switch
  147. Probably dumb question
  148. Transformer questions.
  149. Inrush Current on lighting transformer
  150. More caps. needed?
  151. Yet more VDF questions
  152. I started my 10 hp idler
  153. Blown start capacitor on RPC
  154. how much h.p. for a 300 amp welder?
  155. Two motor RPC designs?
  156. 3hp VFD ok for a 1 1/2hp 3 phase motor?
  157. Need help w/ Clausing Colchester
  158. 220 on each leg 3 phase?
  159. VFD with 2 speed motor...any complexities ?
  160. Digital converter or VFD
  161. Help me choose a 440 volt VFD
  162. Need Help with my RPC
  163. How to hook up a VFD.
  164. SO Power Cords
  165. 240-414V without a transformer
  166. Proper electric motor lubrication?
  167. Size of starting capacitor for 1/2hp, 120vac motor?
  168. Motor starter problems
  169. teco ev series vfd external potentiometer settings?
  170. Wild Leg Question
  171. Questions for Rotocon (Ronk) phase converter users
  172. Are 1 phase to 3 phase motor starters VFDs?
  173. Running 1.5HP motor on 1HP VFD?
  174. 208V motor on 240 not good- but why?
  175. 230/460 motor wiring question
  176. Current carrying capacity of buck transformer setup.
  177. Help deciding on VFD.
  178. Will RPC run on single live and neutral supply?
  179. How to protect small VFD from chips/coolant
  180. GE Polyphase wattmeter P-3 - Useful?
  181. Got the RPC hooked up, but ......
  182. RPC and 3 Phase questions
  183. Problems starting lathe off the RPC
  184. Altivar 31 hooked up for the first time
  185. VFD Recommendation
  186. Run compressor off RPC or single phase?
  187. Need help building my 10hp Rpc
  188. RPM nomenclature
  189. best prices on capacitors
  190. Need more power...
  191. Which one of these motors will be the best for an idler??
  192. RPC output
  193. 17xx idler vs 34xx idler ??
  194. 3 phase generator
  195. Need assistance/advice in bucking down voltage (for the layman).
  196. Woohoo- got me a 20hp 3 phase motor, now what?
  197. I need an honest answer on a VFD or RPC
  198. hmm, can't post the attachment.
  199. What size RPC?
  200. DC Motor controller - 240 volts?
  201. Single phase speed control
  202. Vfd makeing motor vibrate help
  203. Machine Tool Control Transformers 440/220
  204. Lordy- just learned I need a 15hp rpc
  205. 3ph welder on my rotary converter
  206. Rotary phase conv. Question
  207. Help with schematic
  208. Need some help 3-phase to 1-phase motor change
  209. Electrical Issue - Motor putting noise on ground?
  210. Can I get true single phase from 3 phase?
  211. What do I have here? -hardinge HCNC/fagor 8025
  212. two 3 phase questions
  213. Three phase heating elements
  214. How come this works
  215. smoked idler motor
  216. Need start/run switch for my Jet lathe
  217. 10ee start-up problem
  218. Motor stall and vfd"s
  219. Newb VFD hook-up questions
  220. Chinese 3hp VFD to 3hp motor
  221. yet another neophyte RPC question
  222. What to use for a PM 1200HD 2hp drill press?
  223. Cooling Fan 10hp Motor
  224. 1 hp static converter for a 1/2 hp three phase motor?
  225. Do VFD's destroy motor bearings???
  226. VFD drive help
  227. Engine Crank Stop
  228. question with my rpc
  229. Converting SB13 from 3ph to 1ph 220v? Easy?
  230. help wiring Birmingham to FM50
  231. NEED HELP: What is missing from this setup?
  232. Noise Reduction: 3450 RPM Idler Cooling Fan
  233. OT:Onan electrical attachment
  234. amp clamp
  235. VFD changeover query...
  236. 3KVA Transformer Protection
  237. do you leave you vfd's on
  238. another static converter balance question
  239. auto start for rpc
  240. RPC Plans anyone
  241. VFD Choices
  242. Compressor Duty VFD for 3ph
  243. 15hp rotary converter problems
  244. Basics of 3 phase converters
  245. VFD vs Rotary converter current draw
  246. How Can I Fix Excessive Current Imblance in Static Converter
  247. Vfd
  248. replacement motor terminal box?
  249. Workshop on a VFD...
  250. motor size