| Title | By | Posted On |
| Substation Capacitor Banks |
LoSmith |
10/8/2008 |
| I just wanted to pass on some scans that I took of a 2400kVAR capacitor back at one of our 12.47kV substations. After attending the Electrical Inspection Applications class I found a significant problem. In the class we learned sometimes it not what is hot but what is not. During the scan I found that the three phase capacitor bank only had one phase energized. The pictures indicate that the B phase capacitors are energized while the A and C phases were not. After checking the line fuses we found that the A and C phase fuses were blown but had not dropped. During my investigation I went to several of our other substations and found that all energized capacitors show radiant heat hense the moral of the story. If you see a bank of capacitors and one of them is not showing heat then it has failed or has a blown fuse. |
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| Re:Substation Capacitor Banks |
Pete |
11/5/2008 |
| Excellent catch. You are to be commended |
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| Re:Substation Capacitor Banks |
mickey |
11/12/2008 |
Pete wrote:
nt catch. You are to be commended Can you tell me the type fuses you are using to protect your Cap Banks? Thank you |
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| Re:Substation Capacitor Banks |
LoSmith |
11/12/2008 |
mickey wrote:
Can you tell me the type fuses you are using to protect your Cap Banks? Thank you Each phase of the three phase bank is protected by an S & C 100 amp fuse model number SM4 part number 122150R4. Each individual 200kVAR capacitor can is protected by a EJ45 fuse. Not sure of manufacturer right off hand. Los |
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| Re:Substation Capacitor Banks |
mickey |
11/12/2008 |
LoSmith wrote:
Each phase of the three phase bank is protected by an S & C 100 amp fuse model number SM4 part number 122150R4. Each individual 200kVAR capacitor can is protected by a EJ45 fuse. Not sure of manufacturer right off hand. Los Thank you for the quick answer. |
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