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View Full Version : Transformers, Phase Converters and VFD



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