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SLIP Indicator and Load Indicator for Induction Motor


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#1 potdar

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Posted 26 September 2002 - 09:44 AM

SLIP Indicator and LOAD Indicator, for Induction motor is what i manufacture, I woudl like to know if someone is interested in seeing how it works since it is .01% accurate and is nearly working in more than 20 locations

#2 GGOSS

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Posted 26 September 2002 - 10:14 AM

Hello potdar,

Welcome to the form. Yes, I am very interested. Are you able to post more information or is there a web site you can refer me to?

If you prefer you can also send me a U2U message.

Many thanks,
GGOSS

#3 marke

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Posted 26 September 2002 - 10:18 AM

I think that we are all interested, post the data here - please??

Best regards,

#4 potdar

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Posted 26 September 2002 - 10:41 AM

We are posting the data sheet in next 24 hours, In case any one has any specific query feel free to mail me at icrbaroda@hotmail.com, It woudl be a great pleasure in answering you.

#5 potdar

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Posted 28 September 2002 - 04:09 AM

We have developed Digital SLIP Indicator for measuring SLIP of any induction motor of any size, single or three phase. SLIP is indication of motor's condition and can reveal problems within the motor. Therefor the SLIP Indicator can assist testing of motors. The display is continuously visible and variations in the value of SLIP, due to external conditions like voltage, frequency and load can be seen instantaneously. Resolution being very high, (0.01%) it is useful even where SLIP is very low. The device is capable of showing even negative slip. We have enclosed detailed specifications for your reference. Input Supply : 230-110 Volt 50-60 Hz
Signal Input : Proximity Switch
Range : +/- 00.00 to 99.99 %
Size : 96x96x110

Options Available: High-Low cutout/Warning

LOAD INDICATOR BASED ON SAME PRINCIPLE IS ALSO AVAILABLE
FOR ACTUAL CONTROL OF MOTOR IN THE FIELD


[Edited on 28/9/02 by potdar]

#6 potdar

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Posted 29 September 2002 - 05:04 AM



#7 electricpete

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Posted 21 September 2003 - 11:11 PM

QUOTE
Originally posted by potdar
SLIP Indicator and  LOAD Indicator, for Induction motor is what i manufacture, I woudl like to know if someone is interested in seeing how it works since it is .01% accurate and is nearly working in more than 20 locations


Always glad to hear about new products. It sounds like this one measures slip to estimate load. We have historical slip available by looking at our predictive maintenance vibration spectra. Also can be determined by handheld strobe.

We find it is useful to look for changes in equipment operation which may correlate to (explain) changes in equipment vibration. For example some pumps vibrate more at low flow and on these particular pumps that corresponds to lower slip.

Slip I guess forms a diverse indication which can compliment current indication.

Other than identifying change in loading pattern, slip might possibly indicate rotor bar problem. But such problems are more easily recognized with other technologies imho.

0.01% may represent accuracy in speed or slip (?) determination, but surely not load determination.




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