Hello,
I am looking for industrial battery capacity tester. The total voltage of 120 cells around 135V. Max discharge current will be 1300ADC. Is there any brand of tester might solve my problem? Thank you.
regards,
hello,
Fin-tube Heat exchanger internal tube leakage problem was encountered on a large electrical motor. This problem is not easily found exact leakage position when lots of half inch tubes inside the exchanger especially tiny leakage. We use a water pump to check every tube to see if water...
Hello,
I'd like to test 5000 kVA generator performace by connecting a load bank. Any one ever purchase it and testing a emergency diesel generator? How much budget I shall prepare for one load bank? Thank you.
Hello,
We are going to coat silver on a bus-bar inter-connection surface for better conduction. Is there any guidances or standards states that how thickness of silver coating layer should be? Thank you.
regards,
Hello,
Please refer the attached pics. I am looking for a transparent coating material to preventing the ground wire rusting as attached. If possible, is there any recommended? Thank you.
http://files.engineering.com/getfile.aspx?folder=46e47713-e736-45dc-b2aa-2de4f8ae20fe&file=DSC00341.JPG...
Hello,
I have to capacitor bank which is inside a medium voltage VVVF equipment for maintainence job. This bank is seris connected with three 4700uF capacitors. Anyone could tell me what kind of meter is capable to check caps' volume? How about multimeter? Is capacitor meter better than...
Hello,
Please see attached surge absorber which is conneced with a relay coil. I want to buy some for spare part. Does anyone know which brand is it? Thank you.
http://files.engineering.com/getfile.aspx?folder=5157a35d-19ef-4f90-a53f-f22906211682&file=DSCN1763.JPG
Hello,
I am working for a power plant electrical division. Recently insulation of a 5kV cable was failed, about two hundred kilo-ohm. Some expert said that we should try to use Tan-delta tester to diagnose other medium voltage cables.
Therefore I would like to ask did any one ever use friendly...
Hello,
I have a bolt as which need to be confirmed tighten torque. The said bolt picture is as enclosed. I need some help. Thank you.
http://files.engineering.com/getfile.aspx?folder=38f95d14-69c2-4ca0-a21b-7de4034510d8&file=DSCN0933.JPG
Hello,
We need to check aged electrolytic capacitors on PCB boards to see if capacitances still available or not. Per some manuals of component testers, the methods to take actual characteristics of capacitors the capacitors should taken off from boards. Taking them off from boards troubles me...
Hello everyone,
We have a inverter to drive a variable speed motor. The inverter was composed by GTOs. The vendor suggested us measuring both the gate-cathod voltage and gate trigger current for periodically maintainence.To do this work, we need a osciloscope to catch voltage and current...
Hello,
I want to measure optical fiber peak power. There was a phased-out one by Adventest TQ8215 has this function as enclosed. The new type of this meter is TQ8250 without peak detection. Therefore I want to ask everone: Is there any similar instrument with optical fiber peak power detection...
Hello,
I would like to test a AVR performace of a permanant magnetic generator. The inputs signals supplied by gernerator to AVR are two phase 80VAC and 320Hz. To find out the low frequency protection knee point, I need a programmable AC power supply to replace the two phase signals which...
Hello All,
There are some electrical panel surfaces been scratched during construction as shown attaced. Is there any method to recover the panel surface? Thank you.
http://files.engineering.com/getfile.aspx?folder=a0a77c6e-e833-4b4f-b222-b7f788e0311c&file=IMG_6225.JPG...
Hello,
To maintenance electrical panels, we're planning to clean dust which layed on electrical components. Is there any dedicated(special) vacuum cleaner for electrical boards/cards? If there was no dedicated tool for electrical devices, would you please introduce one which is easy for this...
Hello,
There is a medium voltage M-G set and several loads at its downstream. I want to tunning the "droop" parameter and let the terminal voltage of generator keep in rating value when downstream loads are suddenly energized.
The said AVR is made by "AvK Cosimat N+" which is selling by...
Hello,
I'm an electrical site engineer. I'm thinking if I need a NEC booklet with me to check the electrical construction quality, for example: wiring, tubing and grounding method. However most NEC booklet only with words but no any illustrations/fiqures to show the quality inspection point...
Hello Everyone,
To avoid dust goes into a electrical panel, a unknown filter material is installed on this panel. As time goes, the filter has to be purchased and replaced it. However I don't know what is that material. The filter pictures are as enclosed. Would any one can identify it? Thank...
