Ask Experts Questions for FREE Help !
Ask
    Singh3's Avatar
    Singh3 Posts: 5, Reputation: 1
    New Member
    		  
    #1

    Jun 29, 2008, 07:35 PM
    What is the operating volt of small dc motor
    1. How I know that the operating voltage of small dc motor, where there is nothing written on.

    2. why two 10nf capacitors are attached in searies with small dc motor and one 62 ohm resistor also.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Jul 1, 2008, 05:33 AM
    If you know the speed or rpms, you could increase voltage until speed is reached, then measure voltage.
    Is resistor in series with power and capacitors across motor terminals?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Jul 1, 2008, 10:08 AM
    The RC networks are called snubbers and they reduce the emission of brush noise. They have to at the motor to be effective.

    It is quite difficult to determine the voltage. I'm sure you can find some answers on the web. Wire size places a limitation, so does physical size. Take, for instance a starter motor and a bilge pump motor for a boat. Very different.

    Determining short circuit current or the resistance when the armature is stopped will also help you, because that is a current you will not be able to exceeed.

    Raise the voltage slowly while monitoring current. Pay attention to how close you are to short circuit current.

    Monitor temperature as well. An excessive rise in temperature, is a sure bet that the voltage has been exceeded.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

110 volt versus 220 volt mini heat pump [ 6 Answers ]

I have enclosed my screened porch to create more living space(Florida Room). I am using a single zone mini split ductless heat pump for heating and cooling. It has been calculated that I need a 12,000 BTU unit. However, most of these units are available in 110 volts and 220 volts. The 220 models...

Assemble a 220 volt outlet from two 110 volt circuits [ 5 Answers ]

I need help making a temporary 220 volt outlet cord. I have the female 220 v receptacle and two extension cords. I need this to connect a window AC. The electrician cannot come until mid next week. It is very hot here. He told me to put one these cords together for a temporary fix. He warned...

Normal Operating Ohms for a Washer Motor [ 1 Answers ]

I was wondering if any one new the nomral operating ohms for a washer motor... any kind of just a general ohms.. thanks

Wiring a 220 volt fan motor [ 1 Answers ]

I have a Dayton 1/3 H.P. motor Model no. 4M099C. It is a 220-230 volt motor. There are four wires coming from the motor. The purple is marked common, the black marked high, the blue marked med. And the red marked low. I want to connect these to run on 220. How do I go about connecting common and...

Replacing a 240 volt outlet with a 120 volt oulet [ 1 Answers ]

We've switched to a central air conditioning system and no longer need the 240 volt outlet by the dining room window. The house was built in 1928, updated in 1957, and again a couple of ad hoc times thereafter. The wiring is at times very old, brand new or somewhat old. My guess is that the 240...

View more questions Search