| Subject | Date Asked | Expert |
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| Energy losses | 11/21/2009 | W.A. (Bill) Stevens |
Q: I read in an article that approximately 62% of power produced is lost by the time it get to the ...
A: When electricity leaves a power plant and is transmitted hundreds of miles over high voltage lines, ...
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| Power cord replacement for AJAX motor | 11/19/2009 | Charles C. Jones |
Q: I have an AJAX Model FZM 7184TCFR7058DL, 3 HP, 1750 RPM model. I need to replace the power cord and ...
A: From what I can gather, this is a single phase motor, that is connected for 230 volts. The numbers ...
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| Wiring for hot tub | 11/17/2009 | Ron Robertson |
Q: "I am installing a hot tub and the spa uses 30amps. From 60amp breaker in main panel (200amp ...
A: Jarrod... On it's face, yes. Provide seperate ground bars in the two sub-panels. Do not bond the ...
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| Supercritical Boiler Efficiency | 11/12/2009 | W.A. (Bill) Stevens |
Q: Bill: I have read that the supercritical, and ultra-supercritical boilers are more efficient in ...
A: Scott - It all boils down to (no puns!) ... All right, it all depends on temperature. In the ideal ...
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| 220 power | 11/12/2009 | Ron Robertson |
Q: I recently bought a British made recording console that uses two ac to multi-volt dc power supplies ...
A: Bill..... My guess is yes, it will work on your 208 or 240.....BUT....... I'm curious. In the photo, ...
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| electric bill and electric meter question | 11/11/2009 | W.A. (Bill) Stevens |
Q: We just buy a brand new home 3300sq, and we have not moved yet, but we do go there over the weekend ...
A: Suketu - Sounds like you might just have to live in the home for a month and keep track of the meter ...
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| electric bill and electric meter question | 11/11/2009 | W.A. (Bill) Stevens |
Q: We just buy a brand new home 3300sq, and we have not moved yet, but we do go there over the weekend ...
A: Suketu - We live in a 2500 sq ft home. We have a gas water heater and gas clothes dryer. We both ...
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| help? | 11/11/2009 | Ron Robertson |
Q: I'm a bit lost - on an electrical installation course and just trying to get ahead with some of the ...
A: A..... help me out here...... If the lamps are 110 volts, each lamp connected to one phase wire and ...
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| Lights flicker, lights go out | 11/10/2009 | PV Electric Bob Mossman |
Q: I am currently having my kitchen renovated and the walls skim coated in my living room. The kitchen ...
A: Ann, From what you have described there is a loose connection somewhere along that circuit that is ...
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| electricmotor | 11/9/2009 | Ron Robertson |
Q: The wires from the motor are numbered just like on the wiring diagram, two of these wires are ...
A: Mark... Without a schematic, I can't tell you what color wire does what... However...... this motor ...
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| Power to residence household | 11/9/2009 | Ron Robertson |
Q: I am interested in purchasing an electric deck oven to bake bread that uses 208/230+115 volts, 3 ...
A: Kathie..... The short answer is yes. 10-12 KW is about the same as your average electric range. ...
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| Power to residence household | 11/8/2009 | Ron Robertson |
Q: I am interested in purchasing an electric deck oven to bake bread that uses 208/230+115 volts, 3 ...
A: Katie..... Unfortunately, 3 phase power typically is not available for residences. There are various ...
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| electric motors | 11/6/2009 | Ron Robertson |
Q: I'm trying to hook up a Mill/Drill to 220v and using the reverse switch. sofar I have been able to ...
A: Mark.. The arrangement of wires coming from the motor determine the operating voltage and the ...
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| electric motors | 11/5/2009 | Ron Robertson |
Q: I'm trying to hook up a Mill/Drill to 220v and using the reverse switch. sofar I have been able to ...
A: Mark... After looking at the literature, it seems the wiring changes are confined to the numbered ...
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| John S Barnes Corp. motor connections | 11/5/2009 | Charles C. Jones |
Q: Motor details:-cat# 110578.000 model c6c17nz2d HP1/3 ...
A: All pumps both liquid and hydraulic that I have worked on are set in one direction. If this motor ...
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| wiring a 220 volt Doerr motor | 11/3/2009 | Charles C. Jones |
Q: I was given a Doerr motor to replace the 3-phase motor on an old engine lathe (Sheldon) that I just ...
A: I have been away this weekend, but I haven't forgot you. I will try to have a answer for you this ...
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| power generation | 10/31/2009 | W.A. (Bill) Stevens |
Q: is bio fuel successful for todays criteria... ANSWER: Subha - It is likely that liquid biofuels ...
A: The main attraction of nuclear power plants is that they produce no carbon dioxide (CO2) greenhouse ...
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| the motor on my 10 inch Craftsman saw quit running | 10/28/2009 | Charles C. Jones |
Q: I was ripping down 2x4's into strips using my 10 inch Craftsman table saw when while sawing, the ...
A: Check for voltage at the motor. If the motor has a manual overload, see if it is tripped. Also check ...
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| wiring a 220 volt Doerr motor | 10/28/2009 | Charles C. Jones |
Q: I was given a Doerr motor to replace the 3-phase motor on an old engine lathe (Sheldon) that I just ...
A: Les, all I can supply is this NEMA standard wiring diagram, ...
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| Condo electric keeps cutting out in part of unit | 10/25/2009 | PV Electric Bob Mossman |
Q: We rent a condo to two young ladies for the last 3 years. Last year while on vacation we found that ...
A: Lorraine, Your very welcome. There is no threat of fire just the hassle and inconvenience of the ...
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| Condo electric keeps cutting out in part of unit | 10/24/2009 | PV Electric Bob Mossman |
Q: We rent a condo to two young ladies for the last 3 years. Last year while on vacation we found that ...
A: Lorraine, The breaker not blowing is a clear indication this is a connection issue some where ...
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| Reverse an Electric motor | 10/23/2009 | Charles C. Jones |
Q: I have a compressor motor that is rotating the wrong way for it to work properly.I need it to run ...
A: Most, but not all compressor motors come from the factory with set rotation. This means that it ...
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| Fuse Panel Addition | 10/22/2009 | PV Electric Bob Mossman |
Q: I currently have an older 100amp fuse panel. Will be upgrading to a 200amp breaker in the future ...
A: You can't put a 30 amp fuse on a 15 amp circuit regardless of the load on it. Use the pull out for ...
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| Fuse Panel Addition | 10/22/2009 | PV Electric Bob Mossman |
Q: I currently have an older 100amp fuse panel. Will be upgrading to a 200amp breaker in the future ...
A: Chris, You can't over fuse a 20 amp or 15 amp circuit even temporarily. Do you have any 240 volt ...
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| Motor fuses | 10/22/2009 | Charles C. Jones |
Q: I'm having a problem with a three phase motor that blows fuses at the disconnect switch. It's a 230 ...
A: Have you checked the voltage and amperage while the motor is running? Is the motor subject to ...
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| power generation | 10/22/2009 | W.A. (Bill) Stevens |
Q: is bio fuel successful for todays criteria...
A: Subha - It is likely that liquid biofuels will have a high value for other purposes such as ...
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| electric motor | 10/21/2009 | Charles C. Jones |
Q: I have a doerr emerson 1/2 hp Lr22132 and it does not have a plate with diagram or marked wires, it ...
A: Answer Using this diagram here, http://farm1.static.flickr.com/114/253735324_c7d4920bc5_o.jpg use ...
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| Low power in upstairs bathroom outlets | 10/19/2009 | Ron Robertson |
Q: Both of my upstairs power outlest in the bathrooms have low voltage, these are on the RCD circuit in ...
A: Nigel.. When you say RCD circuit, do you mean GFCI (ground fault circuit interrupter)? If this is ...
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| Wiring Furnas Drum switch | 10/19/2009 | Charles C. Jones |
Q: I have a SouthBend 9inch lathe, and I replaced the original motor with a US motors 1/3 hp motor ...
A: Using this diagram here, http://farm1.static.flickr.com/114/253735324_c7d4920bc5_o.jpg use these ...
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| commerical deep fryer is 480 i have 220 | 10/12/2009 | PV Electric Bob Mossman |
Q: I bought and sold 2 new vulcon deep fryers, telling my buyer they were 3 phase, failing to tell him ...
A: Nancy, Your very welcome. Most commerical buildings having restaurants in them that would use these ...
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| commerical deep fryer is 480 i have 220 | 10/11/2009 | PV Electric Bob Mossman |
Q: I bought and sold 2 new vulcon deep fryers, telling my buyer they were 3 phase, failing to tell him ...
A: Nancy, The key here is we don't know what was involved to change the wiring from 240 to the 480 ...
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| Bad Breaker? | 10/9/2009 | Ron Robertson |
Q: I have had a 60 amp 2 pole breaker servicing an insta-hot HWH for 6 years. I recently serviced the ...
A: Paul....I think my earlier reply didn't get to you...... My money is on the insta-hot unit. Circuit ...
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| 115/208 Hook up | 10/8/2009 | Ron Robertson |
Q: I have to hook up a food warming heater that was previously hard wired. THe data plate states ...
A: Jim...... This appliance is intended for use on a 208 volt circuit. The 115/208 label indicates the ...
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| 115/208 hook up | 10/8/2009 | PV Electric Bob Mossman |
Q: I have to hook up a food warming heater that was previously hard wired. THe data plate states ...
A: Jim, The data plate info, number of wires and colors are very significant. If you hook it up the ...
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| question about PSC motors | 10/8/2009 | Ron Robertson |
Q: i am a current HVAC SERV student at dunwoody college in minneapolis, minnesota. my teacher recently ...
A: Dom..... Whether or not a Split capacitor motor has an auto resetting or a manual resetting overload ...
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| energy source | 10/8/2009 | W.A. (Bill) Stevens |
Q: If I wanted to use a new type of energy source in a gas form with triple the calorific power of ...
A: Daniel - So sorry for the delayed response ... I've been out of the country. A) If, for example, ...
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| Bad Breaker? | 10/7/2009 | Ron Robertson |
Q: I have had a 60 amp 2 pole breaker servicing an insta-hot HWH for 6 years. I recently serviced the ...
A: Paul.... I doubt the breaker is bad, or ever was. You stated that you "serviced" the unit....what ...
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| Fix the wiring on a Sears 6 inch Bench Grinder | 9/30/2009 | Charles C. Jones |
Q: I am hoping you can help me. My neighbor has a Sears 110V 6 inch Bench Grinder (Model 319.190620). ...
A: First, to make it easy, label the white wires #1 and #4, makes no difference which one is which. Now ...
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| Automotive Starter | 9/30/2009 | PV Electric Bob Mossman |
Q: Sir I've noticed that in some automobiles, when starting the engine, the accessories like the radio ...
A: Prashanth, Yes I believe that is so and it makes sense that the motor starter receive as much power ...
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| Steam Generation | 9/29/2009 | W.A. (Bill) Stevens |
Q: How much steam can be produced at 120 psi using the waste heat from a four megawatt natural gas ...
A: Al - Very roughly ... If the small CT has an efficiency of 25%, it's heat rate (fuel energy in per ...
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