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View Full Version : Transformers, Phase Converters and VFD



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  1. Bypass Drum Switch to Use VFD?
  2. Quieting a VFD driven motor?
  3. Spindle speed - how to accurately display
  4. Way Ot
  5. Motor Problem
  6. Need help wiring inherited Temco RPC
  7. rerversing a 1 ph motor
  8. Inverter Drive For Small Lathe
  9. Testing 3 phase Motor and Wiring
  10. 7.5 hp rpc
  11. Puzzling VFD/motor interaction
  12. Boston Gear Ratiotrol
  13. Need new lathe motor (?)
  14. Capacitance for solar system
  15. KO Lee cnc surface grinder eletrical diagram needed
  16. buck transformer
  17. 440v to 240v conversion ++
  18. VFD And AC Synchronous Motors: A question
  19. VFD and motor max hZ question/opinion
  20. How about rotary phase converters?
  21. Opinion on Static Phase Converters
  22. Junk yard 3 phase motor ??
  23. Running motor with 208 V on 240 V feed
  24. Starters and relays
  25. VMC battery charging
  26. Derating VFD
  27. two motors running one machine
  28. VFD on a rotary converter ?
  29. Best Place to buy a VFD
  30. ? Use undersized VFD to start rotary converter
  31. Maybe an Old Post..Need CNC phase converter
  32. Gathering Parts - Quick Question!
  33. 240-480 volts 3ph transformer with phase converter?
  34. 25hp rpc amp needs
  35. VFD Settings help needed
  36. Need Help wiring old lathe
  37. Removing a conduit box
  38. How do I find generated leg and control circuit?
  39. can I use this motor for an "add on" for my rpc
  40. Oversizing RPC
  41. Myford ML 10 + VFD ?
  42. Pony start + idler + transformer = ???
  43. Proper RPC Grounding
  44. Utility company transformer sizing
  45. Graziano SAG 12 Step up Transformer?
  46. I need a VFD Guru's advice
  47. Additive, Subtractive Xfrmr and angular displacement
  48. Question about placement of RPC
  49. Testing/Identifying Six-wire Two-speed Single-voltage Motors
  50. Most basic rpc for dummies (like me)
  51. VFD's and CNC's: A couple questions
  52. dual idler rpc question
  53. Better than half way there
  54. Wiring Weiler LZ 280 help
  55. RPC Help needed!
  56. 230/1 to 480/3 to power AB 1395 DC Drive
  57. braking circuit for a 220 motor
  58. New 3 phase service-What voltage?
  59. Need 3 phase power
  60. HP Limitations
  61. What is the function of this MG set?
  62. Mitsubishi vfd
  63. Manual needed for Volkmann AD-2 vfd
  64. 3 phase 2 Speed motor wiring help?
  65. Can I use a vfd as a phase converter for a cnc lathe
  66. Minimum hp on RPC
  67. Dumb questions on phase converters
  68. Rotary vs Static - Need Help with Project
  69. Newbie in need of help! Drum switch redo!
  70. remote start/stop wire size
  71. Wiring up 4 or 5 machines using a RPC?
  72. dead baldor inverter, need help please.
  73. VFD Information
  74. Leary about a static
  75. WNY Supply - Fed Up and Need Help
  76. RPC and Magnetic Brake Problem
  77. What VFD for 2.2kw Spindle 3ph
  78. Who makes dust proof VFDs?
  79. 240 3ph to 460 3ph?
  80. Need advice on Leeson VFD for Clausing 6913
  81. 3 welder on rotory converter???
  82. Rheostat question for 2hp DC motor
  83. Phase Perfect Questions
  84. OT: 3 phase motor???'s
  85. Need Help with VFD and Latching Start
  86. Can I get savings by changing motor?
  87. Best Deals on 460V VFD's and 2 Spd. Mtr/VFD?
  88. Newbe needs help.
  89. Toshiba VF-S9 VFD voltage change?
  90. new to me drive supplier
  91. VFD - torque loss at low rpms and is this possible?
  92. Shop made line reactor
  93. Build your own VFD
  94. Rewiring 3 Phase Motor
  95. Wiring 3ph VFD to 1ph supply?
  96. Any experience with Cutler Hammer AF93 VFD
  97. Wtb 25-30hp Rpc
  98. Need Help with F4 KEB
  99. Power a VFD from shared circuit?
  100. VFD. Buy it now or buy it later?
  101. 120/240 motor generators slightly off topic
  102. Cathode Protection half sell
  103. MANUAL NEEDED: Allen Bradley IP20 161S
  104. Will this European Motor Work in the U.S.?
  105. 3 phase plus neutral
  106. TECO AC drive questions or comments needed
  107. VFD and inverter drive motor?
  108. Dead Circuit in shop
  109. AB motor control
  110. Ratcheting Crimping Tool
  111. single vfd running two motors?
  112. Single phase motors May run off VFDs!
  113. Mfg Comments on Multi-motor VFD applications
  114. Integrating VFD with X Power Feed
  115. Tachometer Display for Mill
  116. Useful Motor and VFD tutorial
  117. 20 kw generator
  118. DrivesWarehouse.com
  119. VFD and Whitcomb Blaisdell
  120. Buying used run/start Caps
  121. Yaskawa servopack rotation change
  122. VFD Help... GE af300 mini
  123. Wiring Static Phase Converter to Drum Switch
  124. VFD on Surface Grinder (two motors on 1 VFD)?
  125. VFD's and braking
  126. 10hp RPC to start 10hp motor.
  127. My First 5hp Phase Converter
  128. Electrical Dumby In Need Of Help
  129. Phase Balance Questions?
  130. Surface grinder keeps tripping reset button
  131. VFD & Motor Starter
  132. -aluminum cooling fan for VFD applications
  133. encloser box
  134. what is special about a Phase a Matic idler?
  135. 200 V motors
  136. Need a copy of VFD's for dummies
  137. 3 wire to 4 wire conversions ?
  138. Lathe only pulling current on 2 legs?
  139. step down xfmr as step up- confusing results
  140. Options for Increasing HP of Rotary Phase Converter
  141. Options for Increasing HP of Rotary Phase Converter
  142. Clausing / Colchester Square Head Wiring Diagram?
  143. anyone familiar with AB 1336S VFDs
  144. program input parameter 1336S
  145. RPC installed and BROWNING OUT
  146. converter confusion
  147. The need of a earth ground ? on RPC.
  148. Motor/Generator jnstead of Phase Convertor
  149. Power Factor?
  150. RPC Benefits
  151. 1/4 HP Marathon motor help needed.
  152. RPC Wiring Help.
  153. Shop/machine voltage question
  154. Economical solution for variable speed control water pump
  155. WNY Control Panel
  156. Yard Sale Find
  157. constant torque
  158. Phase convertor for my cnc mill... I only have single phase
  159. 3 Phase converter?
  160. WNy Supply
  161. RPC Panel On The Way - Breaker Configuration?
  162. Single pole breaker on 220 bus?
  163. Ok, two (probably stupid) questions...
  164. non-inverter rated motors on a VFD
  165. Direct Drives and Controls PRAISE
  166. Phase Converter to Transformer
  167. Cincinnati #2 440 - 220v tilt-head
  168. Wiring Question - CH 3 pole twin break starter
  169. starting problem
  170. Effects of lag/spike on the generated leg when using a transformer
  171. VFD voltage spike
  172. Electrical ? for OLD Norton Grinder 440v motor
  173. RPC idler-how hot should it run?
  174. TECO VFD N3 with 1 HP Bridgeport Step Pulley
  175. Allen Bradley Starter
  176. vfd and hydraulic pump update
  177. ot whats the best way to find crack in shaft
  178. Low Voltage Control for starters - isn't 120V low enough?
  179. rpc and motor reversing
  180. Welder Transformer Probs.
  181. How Much In-Rush Current on 7.5 HP RPC Startup?
  182. Alternatives to a NEMA enclosure
  183. Generator/RPC/Lathe issue!
  184. Rewire the mill or the shop?
  185. 3 phase off/on switch
  186. Too many start capacitors
  187. Place to buy VFD in California
  188. 25 hp rotary phase converter plan wanted
  189. Mill up and Running with FM50
  190. question for electron goo roos
  191. Motor gearing momentum and torque
  192. Inverter Drive Motot
  193. Can big 3ph DC drives run on single phase
  194. Flux Current Control? Wht is it?
  195. OT: Running power line under existing driveway
  196. wye-wye transormer
  197. hydraulic pump with vfd
  198. German tool grinding motor needing help
  199. Help me choose a voltage
  200. Anyone familiar with TECO N3 drive?
  201. Idler in addition to Arco RPC
  202. Rotary or VFD to feed a transformer?
  203. TECO FM50 Remote Connection
  204. Single phase 60hz to single phase variable speed
  205. using two different phase converters
  206. Need a 3 phase switch
  207. Simple circuit design?
  208. Info wanted: Allspeed VT130G (badged Toshiba?)
  209. COM1 access to your drive?
  210. Star/delta motor and VFD wiring situation - looking for some opinions
  211. converter output also
  212. Frequency Drive problem
  213. amp draw
  214. VFD Multi Motor Application
  215. using 3 ph starters w/ 1 ph motors
  216. seeking nema plug info
  217. 30hp Rpc
  218. Switching light ballast voltage
  219. One VFD for three motors
  220. What's wrong?
  221. Replacment Run Capicator
  222. Help with a DC control for a DC Motor
  223. Hitachi VFD vs AC Tech VFD
  224. Static Phase Converter Problem with Willing Machine
  225. One VFD, two different HP motors
  226. vfd on milling machine
  227. Building another chassis dynamometer. Need absorber ideas.
  228. DC Motor Interference Problem
  229. Any 480V VFDs that can run on 240V?
  230. Best Motor for Belt Grinder: 1725 or 3450 RPM?
  231. FM50 on J head Bridgeport
  232. My new WNY RPC panel .
  233. Motor rotation
  234. RPCs vrs Static Converters
  235. Power Company meter question.
  236. converter output
  237. 3450 vs 1760 RPM for rotary phase converter
  238. 3 phases out of single phase.
  239. VFD Control Pot- Multiple Machines?
  240. Source for 208 / 240 volt 3 phase panel?
  241. Best Options: 3phase to 1phase
  242. control transformer question
  243. Will it be strong enough on low rpm with vfd?
  244. 380 v, 50 cycle
  245. "buck", "boost" definition
  246. Will VFD work with multiple-motors
  247. Something went wrong and I don't know what
  248. buck transformer question
  249. Heater replacement costs
  250. VFD for drill press?