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Decimal character "," or "."
Hi. Please bear with me, as I am a complete SQL noob. Problem is this: I have some VBScript code that writes values to SQL tables. The code works OK, but I found out that for REAL values, the decimal character on the PC must be set to ".". If regional settings are set to german or danish for... -
Need info or supplier directions on teflon molding.
Hi, I am an electrical engineer with an idea for a new type of sensor. For this I need to have a specially designed cup with smooth rounded surfaces that are electrically isolating and as non-sticking as possible. Teflon (PTFE) comes to mind. I would like to avoid to have to machine a block of...- JesperMP
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- Replies: 11
- Forum: Mechanical engineering general discussion
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Contactor before or after the VFD, or ?
Hi, I would like to hear some of you experts on which method of disengaging a VFD is the best, in particular with respect to E-stop. 1. A contactor in front of the VFD. Problem is that communication to the VFD will be lost when the contactor is opened (when the VFD control is powered from the...- JesperMP
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- Replies: 21
- Forum: Electric motors & generators engineering
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Detecting lost phase with current monitoring.
Hi, for vibrating equipment we used to use a 3-phase current relay from Carlo Gavazzi (type SM190). The relay would indicate when a symmetrical current was fowing thru 3 phases. If a wire came off in the terminal box on the motor, the relay would switch off. The problem is this: The particular...- JesperMP
- Thread
- Replies: 37
- Forum: Electric motors & generators engineering
