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hasantha84
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Join Date: Oct 2009
Posts: 16

Power Point Error

10/12/2012 11:40 PM

There is a x-ray machine in my office normally its operating with 230V AC. Due to some layout changes we shift over the machine and pluged in to different power point. We found x-ray machine unable to power up. We trace back the power point circuit and its taking from same source and from same DB. Used multimeter and checked and there is a power also. Mean while i noticed if i plug the x-ray machine to original power point its able to work as per normal. i really do not have any idea whats happening. Anybody got experience this kind of situation?

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lyn
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#1

Re: Power point error

10/13/2012 12:17 AM

Just run an extension cord from the original outlet to the new location.

What's the problem?

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hasantha84
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#2
In reply to #1

Re: Power point error

10/13/2012 12:29 AM

Actually its running with extension cord now. But need to find a permanent solution and whats the cause the existing power point unable to work with the x-ray machine. There is no point of replacing power point i guess. i'm planing to lay a new power point trunking from DB to x-ray machine due to im unable to find the fault. If anybody got idea please help. Thanks.

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lyn
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#3
In reply to #2

Re: Power point error

10/13/2012 12:35 AM

Hire an electrician.
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Joshi
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#4

Re: Power point error

10/13/2012 2:56 AM

1. The surface contact area between plug & socket is insufficient, thereby onload voltage falls far too low for the machine to work.

2. At some point in the wire run, there is loose connection.
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wareagle
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#5

Re: Power point error

10/13/2012 12:43 PM

Check the voltage before and after you plug in the machine. The voltage is probably dropping below the acceptable value.
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Tim in Mexico
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#6

Re: Power point error

10/13/2012 1:14 PM

You are likely trying to power it up with 115 vac. As Lynn says, use an extension and/or hire an electrician before you screw your machine up or worse...
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redfred
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#7

Re: Power point error

10/13/2012 1:24 PM

Ahem, moving any ionizing radiation source should not be done by unqualified people! The layout of building shielding, safety interlocks, reflections from critical angle must be analyzed by a qualified specialist. You do not want to spray X-rays into the nursery next door, that gorgeous summer intern receptionist, your own gonads or anyone else willing to put a bullet into your skull because you do not care about safety! After moving a permanent X-ray machine, testing of the shielding and interlocks must be performed by this specialist to assure that all positions of the X-ray machine will not dose people not being examined. If a patient will be examined by this X-ray machine then dose controls must also be calibrated.

You maybe qualified to use this machine. You clearly are NOT QUALIFIED to modify this machine. Call and pay an expert!!!! The life you save maybe your own. Especially if you work near me!

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kvsubramanyam
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#8

Re: Power Point Error

10/14/2012 3:02 AM

Check power with multimeter with load connected. It seems multimeter showing power with out load and power dropping as soon as you are connecting the load.

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aurizon
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#9

Re: Power Point Error

10/14/2012 3:10 AM

Test the new and old power points with a ground fault tester. You may have a badly wired power point at the new location and the machine detects it and will not power up improperly.

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vsar
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#10

Re: Power Point Error

10/14/2012 8:27 AM

Typically on a properly designed power distribution system, power for X-ray units are derived from dedicated power outlets using a special type of connectors Only! Since the power outlet is for Dedicated use only, the power for every outlet is supposed to come from a dedicated CB, rated with enough current capacity enough to operate one X-ray unit only. Therefore finding another outlet sharing the same CB is a big blunder and should be corrected soon! Otherwise you have a fire hazard situation!

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OSCAR FRIAS
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#11
In reply to #10

Re: Power Point Error

10/14/2012 3:17 PM

The original outlet is wired between 2 phases of a 2 or 3 phase circuit to provide 230V. The new one for sure is wired between one phase and ground, providing 115 V.

HIRE A QUALIFIED TECHNICIAN AND INFORM HIM OF THE POWER REQUIREMENTS OF THE X-RAY MACHINE, MAKING SURE THE RIGHT PLUGS AND OUTLETS ARE USED. He should know the National Electrical Code that rules the shape of the outlets and the cord plugs, the medical grade to be used for these fixtures and even the color os the wires feeding the outlet. the wire gauge shall be adequate for the load of the machine.

THE PRECAUTIONS RECOMMENDED BY OTHER REVIEWERS SHALL BE OBSERVED. Moving an X-Ray machine or other image and diagnostics equipment require qualified personnel to protect people, patients, medics, neighboring rooms, and even the machine itself. HIRE A TECHNICIAN CERTIFIED BY THE MANUFACTURER OR THE LOCAL DISTRIBUTOR TO ASSESS THE INSTALLATION.

Finally, remember: if it does not work, READ THE MANUAL.
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vsar
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#12
In reply to #11

Re: Power Point Error

10/14/2012 8:08 PM

Are you replying to my comment or responding to the OP?

I can't find anything in your statements that made sense or relevant to my posted comment???..

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Sciesis2
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#13

Re: Power Point Error

10/14/2012 11:03 PM

...and as is too frequent, I see NO information regarding the OPs location. Thus we have no idea what sort of power system he has. Therefore alot of the replies are probably worthless.

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masu
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#14

Re: Power Point Error

10/15/2012 2:58 AM

There's a lot of assumptions being made in this discussion like:

  • The user is in North America where you use a 110 V to neutral, 220 V split phase or 190 3 phase system. How do you know the user isn't in Europe where they use 220 V active to neutral and 381 V three phase system or Australia where we have 240 V 50 Hz active to neutral and 415 V three phase system.
  • The X-Ray machine is used for medical diagnostic purposes. For all we know it could be a small unit that is used to check the integrity of small critical parts that is sealed and designed to be used on a bench in a laboratory.

So what is needed is more information from hasantha84 as follows:

  • What type of X-Ray machine are you talking of. Model, type and perhaps even a link to the manual or at least the specifications of the unit.
  • What is the unit being used for.
  • Does it require secondary shielding or is it a sealed unit that requires no additional shielding.
  • Power requirements.
  • The voltage supply system that is used at your location.
  • Types of power outlets used for normal items plus the type of power outlet the X-Ray system was connected to originally.

Since we haven't got this minimal information then so far everything that has been stated is nothing more than an assumption.

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Tim in Mexico
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#15
In reply to #14

Re: Power Point Error

10/15/2012 3:14 AM

GA Very good points, interesting how we all just assume so much.
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ronclarke
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#16

Re: Power Point Error

10/15/2012 9:25 AM

There are many applications in which a safety interlock is used. I ran into the same problem with an Industrial tube. Hire a qualified tech that knows the system and let him fix it.

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EXPAT07
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#17

Re: Power Point Error

10/17/2012 2:53 AM

Check your outlet and be sure it is the same 16 or 20 amp and verify the polarity is the same on both outlets (ie) both right side or both left side prongs are voltage vs neutral and the grounding is good on the new outlet, as such equipment is necessary to be well grounded.

Expat 07
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Users who posted comments:

aurizon (1); EXPAT07 (1); hasantha84 (1); Joshi (1); kvsubramanyam (1); lyn (2); masu (1); OSCAR FRIAS (1); redfred (1); ronclarke (1); Sciesis2 (1); Tim in Mexico (2); vsar (2); wareagle (1)

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