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speed

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  1. M

    200 amp switch for RC speed controller?

    Hi there. I'm working on an RC car which currently has a speed controller which has a peak of 200 amps. The power leads are meant to be connected directly to the batteries, there is no switch. I need a switch. However, just banging a 200 amp switch inside the car isn't going to work, too...
  2. L

    How to get upto speed with access control and cctv

    Could anyone recommend a route to gain knowledge about access control and cctv, we've always used a sub contractor to carry out our works, but eventually you have to think, why can't we do this? It's not something I'd be willing to just have a bash at. The standard of some of the installs are...
  3. A

    help with a Ziehl Abegg 560 mm, single phase fan speed controller

    Hi guys I'v got a question to do with a fan speed controller. it is Ziehl Abegg 560 mm, single phase. use electronic speed controller 6 amps..just replace a new same fan motor, when lower speed, controller temperture go up 30mins fuse(10amps)blow. when high speed , controller normal.. any...
  4. Mike Johnson

    Variable speed Pool pumps, France

    A lot of guys around my area of France have spent over €1500.00 on variable speed pumps for their pools, the saving on electrical consumption can be quite considerable over a year, but the cost of the pumps against a standard pump at €400.00 seems to beg the question can't a controller be used...
  5. Gary Tollison

    Can a dimmer switch be used to control drill speed?

    Hello As the title says... ;) I'm thinking about having a 1.8A 400V bushed fixed speed drill, mounted in a press, connected to a dimmer switch to control the drill speed. Any ideas, or advice? And please, to those who think I'm silly to think such an idea etc, I can do without the criticism...
  6. Gavin John Hyde

    Drunk Electrician Caught Sawing down Speed Camera

    Saw this and found it quite funny... Anybody know the plonker.... His name is Stuart Langley from Reading I have done daft things when drunk but never tried to cut a Gatso down... Drunk Electrician Caught Sawing down Speed Camera | WiseTradesmen -...
  7. joel89

    2 speed Pole changing motor Circuit 1.5kw

    Hi all, I have got to build a small panel for a overhead crane long travel drive motors (Old Street crane) The motor is is a 2 speed pole changing motor 750rpm and 1500rpm it needs both slow and fast speed and it also has a link between across 1ph of the slow and fast winding in the motor...
  8. R

    Speed control of power tools ?

    I'm looking for a device that can plug in line with a 16 a extension cable that will control the speed of brush motors on power tools, up to a 2000 w angle grinder. I have seen PCB units on eBay but I'm not sure which one would be suitable. It would be ideal if it could be switched between 240...
  9. Hellmooth

    Speed gate

    Hi guys, I have a customer looking for a speed gate, a bi folding glass turnstile, does anyone know of any suppliers? Cheers
  10. S

    Spray Booth fan help.

    HI! could someone tell me the the correct circuit for a spray booth fan.What would be better 2 pole or 4 pole motor? (Single phase only) Also i would for example, need a DOL starter for that and a AC speed control to vary the speed. Its a inline axle fan 700mm diameter. If any one could give...
  11. Leesparkykent

    Guy Martins Speed

    Did anyone watch it last night? 700BHP engine and 160MPH in a transit van that he had wrote off a few months earlier. Well pleased with himself that he managed to do 100k miles on the same set of brake pads lol.
  12. the pict

    Fan speed controller

    This seems a straight forward control, however the fan runs very slow and it does adjust speed when the dial is turned down, so by taking the controller out of circuit the fan should run at full speed ??, does anyone know if this is a current or potential control, I am sure its a Vent Axia as...
  13. R

    3 phase motor Question

    Evening Guys, A commercial customer of mine has asked me to price a manual and a programmable speed controller for an existing ventilation motor. At the moment the motor is started and stopped manually. I have no expertise in this area so some advice would be greatly appreciated. The motor is...
  14. W

    Hrc fuses

    The question is : Is there a difference in the protection characteristcs of a semi-conductor and a high speed hrc fuse can any one help
  15. K

    replacing 3 phase motor

    people ... quesion ..... there was a car lift , that is old ...and it was 3 phase driving a hydraulic pump to move up..gravity down.. this motor was a 1.5Kw motor 3 phase.. the lift was moved to a domestic garage , so no 3 phase supply in house .. the motor was replaced with a 1.5Kw single...
  16. T

    Hi... need some help with this circuit connection

    Hi everyone. My name is Tim and I need some help. I am looking at a motorised pack I am using to clean windows. I want to add a variable resistor, I think they are called potentiometers. I am wondering though, where should I put it and what value should I get? I think maybe 100 OHM? Hope the...
  17. R

    speed up testing, cert filling

    Hi guys, I used to fil all my certs out on pads on the job and hand to customer, that was back when i was doing mostly domestic work. I now find myself doing a lot of commercial testing mainly for the same client. I have started useing the NICEIC online certification......so record results rough...
  18. D

    Drilling Through Copper Bus Bars

    I recently spent roughly an hour drilling through copper bus bars, surely there's an easier way to do it? :ack2:
  19. yunus

    fan speed control wiring

    Hi Guys Trying to connect speed controller to fan not sure what connects to what for 3 wire control. Any ideas? connector block on controller z u uz connector block on fan one end of capacitor connects to brown .The other to black 2 grey wires N E
  20. L

    speed controller very hot

    A speed controller controlling fans in a kitchen in a restaurant is hot to touch. Any ideas on what the cause would be and what do to rectify it?

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