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| published
on Tue, 16 Mar 2010 13:26:24 UT
[link] ______________________________ ______________________________ _____ |
| 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 ... |
| Induction motor core loss published
on Wed, 16 Sep 2009 15:17:42 UT
Hi folks, am new to motor control. I have to calculate core loss by this params: s=0.06; Un=220v; pf=0.619; f=50Hz; Zn=118.280 ohm; Rs=10.2 Ohm; Rr=10.52 Ohm; Xls=8.17 Ohm -> Lls=0.026 H; Xlr = 19.16 ohm -> Llr=0.061 H; Xm=143.57 -> Lm = 0.457 H. So haw to find Rc ... |
| RE: Electric-Motor-Control 300V DC motor availability? published
on Thu, 09 Jul 2009 14:10:46 UT
you could put in a small ac drive with inverter , you should find drives and motors around old textile plants or siemens, micromaster 420 drive check with salesman at electrical distributors ????? RON ______________________________ ______________________________ _____ |
| RE: Electric-Motor-Control 300V DC motor availability? published
on Thu, 09 Jul 2009 14:09:45 UT
you could put in a small ac drive with inverter , you should find drives and motors around old textile plants or siemens, micromaster 420 drive check with salesman at electrical distributors ????? RON ______________________________ ______________________________ _____ |
| 300V DC motor availability? published
on Thu, 09 Jul 2009 04:04:43 UT
Motor Experts, Could someone tell me where I could buy a small electric motor that I'm with a small company that is making our first electric car. We |
| 2-stage motor published
on Sun, 05 Oct 2008 02:34:54 UT
hi Sir  please can you send me diagram of 2 stages motor separated coil 2speeds                                                                               you regard ... |
| Protection System For Dc Drive published
on Tue, 09 Mar 2010 05:56:10 +0000 Dear Friends, I have 95KW two old DC drives at our corrugator's single facers. The drives have 6 thyrister protection fuses in series of incoming power. During a problem in machine, fuse are blown which are very costly. I want to install an electronic over current monitoring system. ... |
| High Load Motor published
on Sun, 07 Mar 2010 07:31:31 +0000 I need to design a model of 1000 kg lift / elevator. So can u help me with the chosen motor and the data sheet? it can be DC motor @ ac ... |
| Running A 50hz 380v Motor On A 60hz 380v Supply published
on Sat, 06 Mar 2010 21:09:35 +0000 TO ALL MEMBERS, I HAVE A FAN MOTOR AND THE NAME PLATE INDICATE THE FOLLWING; DELTA 380V-415V 50HZ DELTA 460V 60HZ BUT I ONLY HAVE A GENERATOR THAT IS SET FOR 60HZ 380V IS SAFE FOR ME TO RUN THIS MOTOR ON THIS SUPPLY VOLTAGE I REALISE MY V/HZ WILL DROP i HAVE ... |
| Short Curcuit Current published
on Wed, 03 Mar 2010 15:26:14 +0000 Hi guys, Could you enlighten me on this case? 1. If I calculate the SC current in power system and it showed 17kA. 2. What will happen when I choose the MCCB with SC current rated at 10kA if there is SC in the system? 3. What wil happen when I choose the MCCb with ... |
| Problem With Nokian Pf Controller N-12 published
on Wed, 03 Mar 2010 10:53:59 +0000 Dear Friends, I have Nokian PF controller N-12 in PFI improvement plant in main distribution board which rating is 3500A currently supplying only 500-700A. Capacitors are connected in following sequence; • Stage 1 & 2 50KVA • Stage 3 - 6 100KVA • Stage 7-12 ... |
| Mv Motor Starting published
on Mon, 22 Feb 2010 18:05:15 +0000 A 13.8KV Motor(2MW) is connected to the main 13.8KV panel thorugh Soft Starter. The main13.8KV panel is on the direct secondary of step down transformer 20MVA 138/13.8Kv, %Z 9.7. 138 KV(primary of trafo) is fed by transmission line (18km long) from a remote generating station of GTG 19MW of a ... |
| Mv Vfd For Fan published
on Sat, 20 Feb 2010 18:50:03 +0000 Hi, i am going to select a MV VFD for fan. I am going through all the vendors brochures , however, what are the points i should check thoroughly to avoid VFD failure? also, we are buying motor which will run both on VFD and DOL starting .any special requirement i should check on apart from ... |
| Starting Resistor For A 6 Pole Motor published
on Fri, 19 Feb 2010 14:26:13 +0000 Hi Can anyone tell me how to calculate the starting resistance of a 6 pole motor HP=1000/1500 Rotor Volts=740/810 Rotor Amps=301/361 Full speed to reach in 6 stages (6 resistance sections) in one minute Motor is running against a heavy load (Banbury mixer) |
| Slipring Motor Starter published
on Thu, 18 Feb 2010 00:18:19 +0000 An existing slipring motor with following datas : 650kW, 6kV, 6poles, rotor data 1250V/316A, is started with oil type starter (old fashion starter type, working principle "segment-wise"). The starter datas can not be traced anymore, only some datas are available : 1250V, 316A, ta=30sec, f=1,0, Z=2. ... |
| How To Configure The Kw Of Motors published
on Wed, 17 Feb 2010 05:36:25 +0000 Dear Friends; We have many motors in our Central Stores without nameplates and we don't know about their ratings. We only know that they are 380V motors. Do anybody have experience how to configure the KW of motor without ... |
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