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View Full Version : Transformers, Phase Converters and VFD



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  1. 415 volts single phase 50hz how do i do it
  2. 6V battery charger/power supply question.
  3. RPC, leg voltage
  4. How fast can a motor be driven
  5. Question about phase conveters
  6. rpc or vfd for cnc mill.
  7. 10 hp idler 220/440 tips please
  8. Run a VFD off of a RPC?
  9. Help! Need to wire up motor on mill to reverse
  10. Variable Speed DC Drive for Oliver motor
  11. Fuji AF-300-P11 drive
  12. real nice drillpress, wrong voltage
  13. wye vs delta ?
  14. 20 hp single phase vfd
  15. 440 to 220
  16. Overcurrent Braking Trip
  17. Variac to control tool motor speed?
  18. VFD for Bridgeport Series 1 J head 1hp
  19. Run Capacitor Question
  20. Haas phase loss alarms with RPC when Mori spindle spools
  21. How do I rewire a 2 speed, 3 phase 440 volt motor?
  22. Teco FM-50 VFD question
  23. Wiring a single phase motor to drum switch
  24. Bypassing control circuit with VFD?
  25. RPC Help Needed
  26. Convertor ?
  27. "Heater" Help Needed
  28. single 230 to three 440
  29. QWIK-STOP any documentation around?
  30. Where do I find a 220v to 440v 3 phase transformer?
  31. Owners Maunal-ALLEN BRADLEY 1336
  32. Derating drive when increasing carrier frequency
  33. Ideas for a transformer voltage switch ?
  34. Terminal Identification on a Siemens motor
  35. Need help wiring up this motor
  36. Driving a big generator with a VFD ??????
  37. Speed Surging with Teco VFD
  38. How To Make An Old 15HP 3 Phase Go
  39. RPC starts in wrong direction - new issue
  40. Single-phase to Two-phase and Three-phase
  41. Hitachi SJ200
  42. step down transformer power usage
  43. Paralled 2 30hp RPC's
  44. at what point does 3 phase become more efficient?
  45. Help choosing Siemens VFD for HMS :)
  46. Rate my RPC
  47. two speed motor with VFD
  48. single phase 3HP motor, useless?
  49. Cheap transformer
  50. Step up transformer for 5hp motor...
  51. thoughts on this circuit
  52. Need Advice/Help with PC for lathe
  53. Anyone have a reliable method of testing Caps?
  54. 440 HLV H in the homeshop
  55. Multi HP single phase rated VFD's now available
  56. Need help with VFD wiring
  57. My RPC...
  58. RPC connected to Bandaw, Bandsaw contactor flicking on and off.
  59. De-rate a Reliance GV3000 drive?
  60. 12 wire motor hook up - 20HP RPC 240 V
  61. wireless on/off switches
  62. source for step up transformers
  63. Air compressor: buy a 3-ph and convert to 1-ph??
  64. VFD Whine
  65. Single phase dual voltage six wire motor wiring
  66. Isolatioon or Auto Transformer?
  67. Is there such thing as a 6 wire 3 phase motor with a starting cap?
  68. VFD horse power question
  69. VFD w/ two speed lathe motor
  70. Motor Compatable with VFD?
  71. how to switch 3 PH back to 1 phase
  72. VFD Remote Control
  73. New RPC build -- chatter question
  74. Testing a 3 phase motor.
  75. cnc power
  76. how do I wire this drum switch?
  77. VFD, High Pitched Sound?
  78. Buck Transformer
  79. Help, how can I run 3phase motor with single phase supply
  80. How to determine phase sequence?
  81. potential relay rpc question
  82. Motor running hot on VFD - normal?
  83. Minimum VFD carrier frequency for a given output frequency
  84. Clausing DP- HELP?
  85. Drum Switch Wiring
  86. Primitive RPC question
  87. 15-30 hp phase converter, 2 in 1 ?
  88. Antique 1 HP motor with numbered wiring question
  89. getting a old machine motor rewound?
  90. Leblond 13" Regal
  91. 3ph on VFD
  92. Brushless DC hobby motors
  93. Connections
  94. What is this thing?
  95. Multiple Motors to Wire, RPC
  96. What can i build with these parts?
  97. Vfd motor wiring question
  98. Need some direction with RPC build.
  99. Can transformers just "go bad"?
  100. Hardinge bb2v/bb4 mill - VFD setup
  101. How can I determine the HP rating, Info of an electric motor? Nameplate is defaced.
  102. is this correct?
  103. Help with wiring a reversing switch
  104. How many "starts" per minute - static converter
  105. Nary a used Phase Perfect on Ebay??
  106. Teco N1/k1 Vfd
  107. Suggestions on a motor control books..
  108. Anyone With VFD Repair Experience?
  109. Teco N3 software
  110. can an american lathe be used in Italy
  111. Preparing for possible shop move - no 3ph.. will need RPC for CNC Lathe
  112. Shunt wound DC motor control help needed
  113. 3 Phase Transformer Low Voltage Problems
  114. Ideas for a Capacitor Rack in RPC Panel
  115. Commutator bars damaged
  116. Good DVM/amp meter recomendation
  117. Belted Pony Motor RPC
  118. Using a Square D Mag Starter for a RPC
  119. ? 120 to 240V using transformer intended to reduce voltage
  120. 240v running a 200v motor?
  121. Static Converter AMP Draw
  122. Radial Arm Saw Motor Voltage Change...Possible?
  123. 3 HS KT No controls
  124. Help!! Rotary Phase Converter
  125. Single vs 3-Phase
  126. VFD , Rotary or Digital phase converter for my machines?
  127. 200 Volt Motor For RPC?
  128. Pre-Made RPC Panels/Amperage Calculating
  129. 1950's motor and VFD-- any insulation concerns?
  130. Phoenix phase???
  131. Single idler RPC vereses Two idler RPC
  132. Out of Balance
  133. Changing a grinder from 440 to 220?
  134. Which Phase Converter
  135. Nardini/Phase Converter Size
  136. Allen Bradley 350-tav32 Series C Rev. Drum Switch
  137. 3 ph motor starter used 1 ph to feed VFD and heaters
  138. 600 volt???
  139. Phase converter gone bad
  140. Wiremold raceway, gutters for flexibility
  141. Electrical wiring
  142. Electrical power & power factor -billing
  143. Ideas for powering a 7.5/3.75 hp lathe
  144. Which Brand Load Center and Breakers?
  145. Put a VFD on my Bport mill
  146. U.S. Phase Converter Standards Organization - is this group valid?
  147. Clausing D/P What motor/VFD should I use?
  148. AC Drive article from Processing Magazine
  149. Balanced leg RPC for antique machines?
  150. Humidity and VFDs
  151. RPC idler motor RPM
  152. AMP Ratcheting crimp connector
  153. Desperately In Need Of Help
  154. Household wiring
  155. Dual Idler 3hp/10hp RPC - Still Learning...
  156. Splicing 6 awg stranded copper wire
  157. Electric Motor Voltage Questions
  158. Two Speed Patternmakers lathe
  159. static phase converter
  160. Variable Frequency Drive (VFD) for Manual Lathe?
  161. 20hp WNY gold control panel
  162. 40 hp RPC
  163. phase converter - how to run 3 ph accessories on machine
  164. Mystery Transformer: What is What?
  165. Machine capacitor questions
  166. RPC question?
  167. Hardinge Speed Lathe
  168. V/S Drill press 3ph or Single?
  169. "Soft Start" box on 17" lathe, what can you tell me?
  170. 117 volt 3 phase????
  171. 1 VFD, 2 mill - switching outputs and controls between
  172. What is the size?
  173. Wiring 240 volt machine circuits
  174. European motors for RPC
  175. Phase Converter went bzzzzzzzzzzz
  176. Request for pictures of VFD installations on lathes
  177. Baldor Standard-E + 2Hp VFD issues/questions
  178. Rpc
  179. Rotary Converter, or VFD???
  180. motor turns slowly with rpc power
  181. Suggestions for a VFD
  182. Anyone in NE MN want to build a couple of RPC's?
  183. RPC question
  184. Building 10 Hp Rpc
  185. Diemen flyback transformer
  186. Idler Motor
  187. Two Speed, Single Phase Pole Changing Motor
  188. Need advice on lowering hi leg voltage
  189. How to decipher the wiring schematic of a 110/220V single phase motor?
  190. Running a 9 hp saw in my garage - realistic or not?
  191. Daisy chaining motors, bulding PRC have questions
  192. Resource for switch form factors? Best Sources?
  193. Almost ready to fire up my 10EE
  194. Schematic software
  195. Phoenix phase box
  196. Got a RPC today
  197. Check my Calculations
  198. Rotary Phase Converter
  199. my Mitsubishi A200 VFD
  200. Noisey baldor DC with drive
  201. Line starter questions.
  202. VFD on Index mill
  203. HELP!!!! 220v to 440v 3 phase transformer
  204. Wye for idler motor
  205. Please Help With Hitachi VFD
  206. Whining VFD
  207. Protecting a VFD?
  208. Help Explaining this Transformer!
  209. Old Century Polyphase Motor with "Odd" Bearing Lube Scheme
  210. Converting a three phase motor from star to delta configuration
  211. Question on wind generators and power company
  212. High AMP draw at idle
  213. Can I use my old rpc for new application
  214. Don't know what to do...Need 3 phase power somehow..
  215. Salvage Square D "Watt Transducer"
  216. What breaker for 112.5 KVA 3Ph Transformer?
  217. Cleaning Allen-Bradly switch contact modules?
  218. auto transformer selection isolated or non isolated ?
  219. Who has best deals on new 3 phase transformers ?
  220. 3hp RPC putting out very high voltage?
  221. Transformer in reverse/delta vs wye?
  222. Running a 5 HP motor off a 3 HP rotary?
  223. Bought me a phasemaster
  224. Interesting 3ph Lincoln dynamotor/welder contraption.
  225. Need help re: transformer and KVA requirement
  226. Do I have enough power?
  227. New American Rotary 10HP Rotary Phase Converter arrived today!
  228. Phase converting fo a single motor application
  229. Is special "CNC phase Converter" needed?
  230. RPC + machine current INTAKE??
  231. Machine power hookup, transformer question *pics*
  232. Which buck boost transformer (S)
  233. powering a camelback
  234. Won't start in high range
  235. How many buck transformers for 3 ph?
  236. Request for transformer KVA size analysis
  237. Outdoor enclosures for RPC idler motors?
  238. Over sizing VFD
  239. run 3phase ac drive on 1phase?
  240. EDM transformer question
  241. VFD for multi-motor machine
  242. 3 phase electrical receptacle
  243. vfd,how much torque at reduced speed
  244. How important is balancing?
  245. Pinging gentleman that gave me3 RPC plans last winter
  246. VFD for geared head drill press?
  247. Contactor question
  248. Severed underground phone line - questions
  249. Sizing fuses
  250. Source for inexpensive panel mount Volt Meters?