Recent content by enggines

try to visit www.powerplot.com and download their demo. you can print TCC by adding New TCC on the included sample file. More so, you can make use of the library then print. Yup, its a save disable program. hope it helps.

I came across a neutral conductor with #2 FCWC and 12 CW specs. What does FCWC and CW stands for? Thanks

Hello! What would be the proper or better protection for a substation and distribution system from surges? Our practice is to use; 72KV and 15KV arresters on the substation high side and low side respectively. Line distribution is protected with 12kv arresters. A project engineer on a new...

Thank you, DanDel. My main concern is how would I know the fill level in the conservator. If it is above 25 deg centigrade up to what level inside the tank. Or, is their a reference point for oil level relative to the degrees centigrade value?

Good Day! In a Conservator type Transformer, the indication for oil level is in degrees Centigrade (why?). If the initial fill requirement is within 20 degrees, what level would that be inside the conservator tank, 3/4? 1/2? Thanks in advance.

Hello. What's the proper way of wiring a Circuit recloser used as a main protection of a radial feeder with BCT's on both loadside and lineside. The loadside BCT's are wired to the ground trip of the recloser. We need to a set of currents for monitoring purposes only (Ammeter Reading) and the...

My experience is that when a Power Transformer is being energize without load, humming or rattling or whatever sound (i mean, the usual or normal one) is more louder as compared to a lightly loaded unit. But like DanDel said, I haven't had the technical justification. Perhaps, somebody out...

Hi All! What is the correct or better way of energizing a 15/20 Mva, ONAN/ONAF, 69-13.8 KV, DYn1 Power Transformer serving at least feeders? Without Load or at least one (1) feeder is initially loaded? My concern is the inrush current. One guy advice me to energize with load to damp the inrush...

How would i solve the total capacity of a battery bank when rating of equipment being serve (Momentary, Continous & Essential loads) are not available. We have 6 battery bank(48 volts each) in different locations and we intend to have a centralized bank (in lieu of the 6-bank). Can I just add...

Hello guys. I would like get your comment or suggestion on the following method of protection. Which is a better method of protecting a distribution circuit, aerial ground or lightning arresters? The circuit is 13.8 KV, around 6 Km long, #4/0 ACSR conductor and right of way is along main road...

Thanks a lot to all of you guys. If any, this is a 20/27/33 Mva, 69-13.8 kv project, which will carry four (4) Distribution Feeders. Proposed transformer is of conservator type and the site or space is limited, so we opted for switchgear beside the Power Transformer (as against our existing...

Hello. Can anyone make a comment or an opinion with regards to using XLPE Cables on secondary of Power Transformer to Switchgear instead of using Bus Duct. We have a 20/27/33 MVA substation project, switchgear/outdoor type. Our contractor proposed the used of XLPE Cables installed in a concrete...