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Type: Posts; User: templdl

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1. ## Thread: Lighting Transformer and Voltage Drop Calculation

by templdl
Replies
22\$\$
Views
368

### Yes, transformers do not regulate as many wish...

Yes, transformers do not regulate as many wish they would. Since transfortmer pri and sec windings are proportional ( aa specific ratio) so are the pri and sec voltages. The only reference to...
2. ## Thread: Lighting Transformer and Voltage Drop Calculation

by templdl
Replies
22\$\$
Views
368

### Then transformer taps are not necessary because...

Then transformer taps are not necessary because of a voltage drop for fear of an over voltage. What is the allowable percentage of voltage fluctuation, +-10%? Remember that you don't have to opt for...
3. ## Thread: Baseboard Heater Issue

by templdl
Replies
6\$\$
Views
256

### My thoughts also. Not uncommon at all.

My thoughts also. Not uncommon at all.
4. ## Thread: Lighting Transformer and Voltage Drop Calculation

by templdl
Replies
22\$\$
Views
368

### The NP shown illustrates +(2)2-1/2% and (4)2-1/2%...

The NP shown illustrates +(2)2-1/2% and (4)2-1/2% full capacity taps whith would allow for correction of up to 10% below normal voltage.
Please don't make it more difficult than needed.
5. ## Thread: Lighting Transformer and Voltage Drop Calculation

by templdl
Replies
22\$\$
Views
368

### You are concerned about voltage dop but did not...

You are concerned about voltage dop but did not consider the primary t as p as that would be included on the transformer to compensate for voltage drop. The transformer most lonely has either...
6. ## Thread: Goofy Control Circuit

by templdl
Replies
17\$\$
Views
519

### Yes, there is a lot of guessing that goes on all...

Yes, there is a lot of guessing that goes on all right. Without a wiring diagram the OP must have knowledge of a control circuit in order to ring out/ troubleshoot the control circuit. If there is an...
7. ## Thread: Goofy Control Circuit

by templdl
Replies
17\$\$
Views
519

### Ditto. You guys all have it covered.

Ditto. You guys all have it covered.
8. ## Thread: Troubleshooting Resi/Commercial Problems

by templdl
Replies
23\$\$
Views
776

### Some people are terminally stupid when it comes...

Some people are terminally stupid when it comes to understanding what it takes to gain the knowledge asnd expertise to address their problems. I have often replied that if it was that simple it is a...
9. ## Thread: Terminating Stranded Wire On Receptacles -VS- Switches

by templdl
Replies
34\$\$
Views
1,206

### The way that I see it is that ir goes back to NEC...

The way that I see it is that ir goes back to NEC art 110-3(B) installation and use.
Listed or labeled equipment SHALL BE INSTALLED and used in accordance with any instructions in the listing and...
10. ## Thread: Troubleshooting Resi/Commercial Problems

by templdl
Replies
23\$\$
Views
776

### Right on!! I am not a believer in a knowledge...

Right on!! I am not a believer in a knowledge bases at all as it turns an issue into being black or white. Find a question get an answer, a no brainer. An electrical distribution system is not blaĆ§k...
11. ## Thread: How to size a 480 to 240/120V Transformer

by templdl
Replies
38\$\$
Views
962

How about this package, an Easton mini power center, SqD has a similar product called a mini power zone.
http://m.cesco.com/b2c/product/Eaton-Cutler-Hammer-P48G11S15P-Mini-Power-Centers/609361

A...
12. ## Thread: How to size a 480 to 240/120V Transformer

by templdl
Replies
38\$\$
Views
962

### Otherwise than II am not familiar with the...

Otherwise than II am not familiar with the transformer manufacturer you have selected one with the correct aspects excerpt that it didn't specify the taps as I had suggested. It is extremely...
13. ## Thread: 100% Rated Breaker and Assembly

by templdl
Replies
12\$\$
Views
670

### I don't believe that you will find 90degC rated...

I don't believe that you will find 90degC rated lugs.
If you do specify a 100% rasted breaker the enclosure and assembly must the listed for applying the breaker at 100%. Then, to actually apply the...
14. ## Thread: How to size a 480 to 240/120V Transformer

by templdl
Replies
38\$\$
Views
962

### I am in agreement with you, a 15kva transformer...

I am in agreement with you, a 15kva transformer would be correct based upon 60a@240vv. A 15 KVA xfme is actually rated at 62.5a. You have to be careful not to get the cart before the horse as you...
15. ## Thread: How to size a 480 to 240/120V Transformer

by templdl
Replies
38\$\$
Views
962

### I am in agreement with you, a 15kva transformer...

I am in agreement with you, a 15kva transformer would be correct based upon 60a@240vv. A 15 KVA xfme is actually rated at 62.5a. You have to be careful not to get the cart before the horse as you...
16. ## Thread: receptacle power switched by relay contact

by templdl
Replies
8\$\$
Views
499

### Bingo! Everything is covered. An uncomplicated...

Bingo! Everything is covered. An uncomplicated answer. This was my though when I first read the OP..

by templdl
Replies
14\$\$
Views
579

### Great Dave, It looks as if you are going to get...

Great Dave, It looks as if you are going to get your arms around this. Knowing the dynamics of the system woud be a benefit.
Dave

by templdl
Replies
14\$\$
Views
579

### I apologize as I didn't realize that the OP's...

I apologize as I didn't realize that the OP's intent was to energize the transformer only after the genset was running. I was mistakenly assuming that the transformers were already connected when the...

by templdl
Replies
14\$\$
Views
579

### First this isn't a utility supply that you are...

First this isn't a utility supply that you are being concerned with where the supply is very stiff and able to supply instantaneous peaks of current.
Then I nsiderred the generator and what it's...
20. ## Thread: receptacle power switched by relay contact

by templdl
Replies
8\$\$
Views
499

### I haven't checked lately to see if a 10at breaker...

I haven't checked lately to see if a 10at breaker is uL489 listed. I know they weren't in the past but may be now. Also, is a 10at breaker included in the NEC? It may only go down to 15at. ...
21. ## Thread: MCP vs Circuit Breaker

by templdl
Replies
8\$\$
Views
351

### Have you reviewed NEC art 430-52? It covers both.

Have you reviewed NEC art 430-52? It covers both.
22. ## Thread: bifurcated secondary on transformers

by templdl
Replies
7\$\$
Views
354

### Interesting subject. I was with a major...

Interesting subject. I was with a major manufacturer of both liquid cooled and dry type transformers for 18 years and with a manufacturer of drytype transformers from the small control power...

by templdl
Replies
4\$\$
Views
300

### I'm not familiar with the breaker but simply...

I'm not familiar with the breaker but simply feeding (2)poles of a (3) pole breaker and taking one pole from the load side of the breaker back to the remaining open line side is certainly not an...

by templdl
Replies
11\$\$
Views
486

### How about the receptacle, it looks as if It is a...

How about the receptacle, it looks as if It is a DIY. Hense, the plug and cord assembly. A Rube Goldberg?