I have resently submitted a post on this but I have more information for review. Stated in my resent post we had a contractor read our power factor on each phase. he claims that the power factor in phase A is 50% phase B is 98% and phase C is 80%.
The meter he used is a Fluke 43B.
The incoming...
We had a contractor put a fluke power quality analizer meter on our main switchgear. The info they recorded was that phase A on our three phase 480volt delta wye system was reading a power factor of 50% lagging and the other phases were reading phase B 80% and phase C 98% lagging. We have a...
I have a micrologix 1200 that is faulting on controller cannot communicate with expansion I/O module. Exact module cannot be determined. This has happened about a month ago and reapeared again today. I clear the error and works fine. The I/O module is 1762OW8. Which has the problem?
We are installing a new extrusion line and I got schematics from the OEM. The first thing that caught my eye is the value of the xformer. 55KVA primary overcurrent device 150amp breaker. THe values they give me are 388 Fla on the 240v side. Their formula is 388/3phase=129.3anps.So...
I just had a well drilled for a garage and a small appartment on top for a single residence only. The well depth is 500' at this I have 2gpm. The well driller recommend going 500' at approx 350' we had 2 gpm. I assume he went the extra footage for reserve. My question is how much reserve will I...
I have a 220volt service. I put my ampprobe on the neutral and have approx. 15amps. This is a single phase system. On the other 2 phases I have 3amps to 16amps. I know they are not balanced but what is causing the current on the neutral. The neutral is bonded to ground. Thanks you for any...
I have an extruder motor that has rating of 700HP 500vdcARM 300v/150vdc.field 8.9a/17.8 amp field @ 1750RPM. Currently under load we have 800amps on the armature @1750RPM. We are using 300vdc.field EXC Shunt.The manufacture say the motor is capable of 2400RPM. If we purchase a field weaking...
