Latest threads in ⏚ Electrical Engineeringshow only best voted threads
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How to test a single phase ac motor??
Could someone please tell me how i go about testing a single phase ac motor with external capacitors by using a mega or a multi meter. The motor is being used for a swimming pool pump and i want to...
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17 years ago
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Eurotherm 2132
Hi anyone familiar with the EUROTHERM temperature controller, i have one that does not want to output. Maybe bad configuration. Would appreciate any help. Thanks
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17 years ago
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Filter Question! How to get rid of SPIKES!
Hello, I have a 60Hz AC voltage comming from a transformer 120/220V that=20 powers some cooling fans, but it's got some spikes at the output, and=20 Im having problems with that. The spikes are...
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17 years ago
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Help sizing buck/boost transformer?
Load is 130A FLA at 220V = 28.6KVA. Supply is 3-phase, "Y", 208V. Using a 120-240/12-24 buck-boost transformer, what KVA should I look for? One source says that this transformer increases voltage by...
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17 years ago
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simple fixed-frequency AC motor speed reduction?
Hi- I'm an electronics novice trying to figure out a way to reduce the speed on my home drill press for cheap. I'd appreciate any advice or hints on approaches. It has an AC motor, labeled as 110V...
12
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17 years ago
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Transformer Impedance Question
We have a situation where a customer needs to put three single-phase, 50 KVA pole mounted transformers into a three-phase bank. The voltage of each transformer is 13800-277/480Y. Two of the units have...
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17 years ago
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need a final year b.tech project
i m in my final year b.tech now. wanted to do sumtin which is really great for my project. sumtin to do with microprocessors...anything kool
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17 years ago
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ferrite cores
i need to repair the ferrite cores in a H F transformer in a welding inverter, the cores are busted into peices, it has two oval coils of thick copper side by side, with four u shaped ferrites bolted...
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17 years ago
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Best BEGINNER textbook (Electronics class, on transistors)
I am a senior in Electrical Engineering right now. Currently I am using Sedra and Smith's Microelectronics book. However...it is too dry and too detailed. I can't read through it as hard as I try....
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17 years ago
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line reactor for harmonic filter
Dear all, I have the problem to design a line reactor for incoming supply 415V. The reactor is series with capacitor bank (100KVAR). We have 12 steps of capacitor bank and reactor. Is it imprtant to...
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17 years ago
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current amplifier question (with a little LabVIEW)
Hello, I need to design a current amplifier. I'm trying to design a virtual instrument in LabVIEW to which I can type in a current (for example 1.5 Amps) and then have that current realized at the...
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17 years ago
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208 to 240
Anyone ever swapped a 208 main for a 240 going to a residence. There is a manhole cover one house down with both mains running alongside. It's doable, but was wondering about cost, (especially from...
2
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17 years ago
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3phase genset hookup for backup of 240v single phase service
you might get better qualified responses in the electrical engineering group (seeing as most guys there are power engineers anyway)..
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17 years ago
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Those darn fuses
My bother-in-law called and said his furnace was off again after he was billed $240 by the local repair shop. I called the repair shop but they wouldn't come again until the bill was paid. I said that...
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17 years ago
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Efficient Engines - [ Engineering ]
Efficient Engines - [ Engineering ] ------------------------------------------------------ Engines as conduits of Energy "The Mindset of An Engineer" 1. A properly designed engine is not to use...
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17 years ago
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