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| Re: Electric-Motor-Control naturalFOC published
on Thu, 03 Jun 2010 10:34:04 UT
FOC is Field Oriented Contol in frequency convertors for AC motors. It is called Vector control. There is Sensorless FOC with errors for the speed 0.05% and for the torgue 5% and Sensored FOC with erros for the speed 0.001% and the torgue 25. ______________________________ __ To: ... |
| naturalFOC published
on Tue, 01 Jun 2010 15:39:35 UT
Is any one know something about natural FOC? I understand the FOC used in PMSM, but what is natural FOC? I appreciate if u could introduce the profile to me. ... |
| Electric-Motor-Control published
on Fri, 16 Apr 2010 02:48:29 UT
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| published
on Wed, 14 Apr 2010 13:33:00 UT
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| published
on Tue, 23 Mar 2010 04:10:58 UT
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| published
on Tue, 16 Mar 2010 13:26:24 UT
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| Re: 2 pole motor replaced 4 pole motor published
on Wed, 14 Oct 2009 16:41:42 UT
Trevor, The 2 pole motor turns 2 x faster than the 4-pole motor, so the pump |
| 2 pole motor replaced 4 pole motor published
on Wed, 14 Oct 2009 08:48:27 UT
Dear Members, I had a watermaker on a motor vessel repaired including the replacement of the A C Motor. About 1 HP 240 volt. The contractor charged me lots of extras for additional work: Resizing pulleys because the pump was going too fast, seals kept failing, the inverter would ... |
| Where can I find an online anti-virus that doesn't install on your PC? published
on Wed, 23 Sep 2009 17:18:17 UT
I've got 5 PCs that I'm trying to use to train disadvantaged young people. The problem is they are riddled with viruses and a firewall blocks me from updating them. The people in charge of maintaining the PCs won't fix them or give me the admin password (Win XP) to let ... |
| Re: Electric-Motor-Control Induction motor core loss published
on Wed, 16 Sep 2009 15:29:43 UT
What may ask would you need to know that for? ----- Original Message ----- To: "Electric Motor Control" <electric-motor-control@google groups.com> Sent: Wednesday, September 16, 2009 10:17 AM ... |
| Liquid Starter published
on Sun, 29 Aug 2010 12:19:40 +0100 In current business project I have to supply a motor and a liquid starter. To achieve true understanding i need some information. The motor descriptions are as below: Rated power (kW): 1500 Rated torque (Nm): 9600.5 Rated voltage (V): 3300 Rated speed ... |
| Stopping An Ac Motor Connected With High Inertia Load published
on Wed, 25 Aug 2010 07:55:16 +0100 Hi dears; I have been working on an electric trolley project which would be used for material handling. The trolley has a 7.5Kw AC motor which speed would be controlled by an inverter. There is an issue that how to quick stops the trolley during (consider its own weight, having load on ... |
| Smart Power Meters published
on Tue, 24 Aug 2010 04:09:00 +0100 Does anyone know how exactly the Smart Power Meters, that currently being roll out in Victoria Australia measure the power consumption? |
| Emerson To Sell Motors And Controls Businesses To Nidec Corporation published
on Thu, 19 Aug 2010 18:43:44 +0100 Emerson to Sell Motors and Controls Businesses to Nidec Corporation • Decision to Sell Follows Six-month Evaluation Process • Under Agreement, Nidec Corporation to Retain Facilities, Employees • Headquarters to Remain in St. Louis ST. LOUIS, (August 17, 2010) ... |
| Earthing published
on Sat, 14 Aug 2010 09:06:59 +0100 What should be the maximum earth resistance value for (a) System Earthing and (  Equipment Earthing? Also, please trace your answers to some National ... |
| Motor Starting published
on Sat, 14 Aug 2010 09:04:16 +0100 What is teh maximum permissible voltage drop at the three phase squirrel cage induction motor terminals during (a) Normal Running with full rated load and (
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| Earth Leakage And Locked Rotor published
on Thu, 12 Aug 2010 14:56:57 +0100 I have a few querries: 1. Is the earth fault current setting in an MPR same as the actual flowing current in the CBCT primary, that is the current that flows in armour of the cable. 2.What is the locked rotor setting for star delta starting of motors to be provided. The ... |
| 230 Volt Phase-to-neutral Motor, 50 Hz. On 277 Volt, 60 Hz. published
on Tue, 10 Aug 2010 14:38:41 +0100 Can I run a 50 hz., 230 volt phase-to-neutral motor on 60 hz., 277 volt ... |
| Pm Ac Synchronous Motor published
on Tue, 10 Aug 2010 05:45:45 +0100 now a days pm ac syn. motors are increasingly used and replacing induction motors. i have some difficulty in understanding how the motor is started. a conventional synchronous motor is started with the help of damper windings or by driving it with an external motor and ... |
| Motor Temperature published
on Wed, 04 Aug 2010 08:02:53 +0100 Hello, can anyone help me with this? 1. what is the standard temperature a motor has to generate? 2. is there such a thing? |
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