# Search:

Type: Posts; User: gar

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1. ## Thread: This was an arc fault, right?

by gar
Replies
14\$\$
Views
337

### 151127-1702 EDT I agree with ggunn on how the...

151127-1702 EDT

I agree with ggunn on how the information was presented.

The word "overtightening" used alone without further comment does not correlate with the end result. Simple...
2. ## Thread: Bidirectional meter registers

by gar
Replies
14\$\$
Views
375

### 151125-0803 EST Rampage_Rick: The...

151125-0803 EST

Rampage_Rick:

The calibration on my meter is the same as yours. One dot step = 1 Wh.

A step period of 3.6 seconds = 1 kW. Or 21.6 seconds for 6 steps is 1 kW, an easier...
3. ## Thread: Bidirectional meter registers

by gar
Replies
14\$\$
Views
375

### 151124-2400 EST GeorgeB: I received my DTE...

151124-2400 EST

GeorgeB:

I received my DTE smart meter about 4 years ago. About 6 months later I was able to get hourly data from my meter from DTE's website about a day and a half after the...
4. ## Thread: Bidirectional meter registers

by gar
Replies
14\$\$
Views
375

### 151124-1433 EST GeorgeB: From the data that...

151124-1433 EST

GeorgeB:

From the data that you provided and making some assumptions I was trying to figure some values that might correlate with the meter data. An important question is...
5. ## Thread: Bidirectional meter registers

by gar
Replies
14\$\$
Views
375

### 151124-0001 EST The average number of hours...

151124-0001 EST

The average number of hours per year over a 4 year period is 8766, and an average month is 730.5 hours.

If your average winter consumption has been 500 kWh/month, then average...
6. ## Thread: Create a 3 way switch from seperate circuits?

by gar
Replies
14\$\$
Views
612

### 151123-0852 EST iwire: Some TED and X-10...

151123-0852 EST

iwire:

Some TED and X-10 problems.

http://www.theenergydetectiveforums.com/index.php?topic=801.0;wap2

http://www.theenergydetectiveforums.com/index.php?topic=941.0;wap2
7. ## Thread: Create a 3 way switch from seperate circuits?

by gar
Replies
14\$\$
Views
612

### 151122-2124 EST luckylerado: X-10 is a...

151122-2124 EST

X-10 is a relay system with control mostly by PLC at about 125 kHz (PLC here means Power Line Carrier). The switching device is either an electro-mechanical relay,...
8. ## Thread: Create a 3 way switch from seperate circuits?

by gar
Replies
14\$\$
Views
612

### 151122-1341 EST iwire: As soon as you go to...

151122-1341 EST

iwire:

As soon as you go to some sort of switch that is remotely controlled it is a relay. A switch that I directly operate I do not classify as a relay, however, in a broad...
9. ## Thread: Create a 3 way switch from seperate circuits?

by gar
Replies
14\$\$
Views
612

### 151122-1144 EST Dennis: That was my...

151122-1144 EST

Dennis:

That was my impression as well. What I wanted to describe was the broad general concepts, and to essentially indicate that he could not do some direct magical wiring to...
10. ## Thread: What is the difference between 208V vs 240V single phase ?

by gar
Replies
14\$\$
Views
656

### 151121-2409 EST jaehlee99: Your question...

151121-2409 EST

jaehlee99:

Both are a two wire source and load. Does not imply that either wire is near ground potential. A single phase induction motor is not self...
11. ## Thread: Create a 3 way switch from seperate circuits?

by gar
Replies
14\$\$
Views
612

### 151121-2356 EST Broadly you have two...

151121-2356 EST

1. Wire all the bulbs in parallel. This means hot and neutral must run together so there is no significant stray magnetic field. Power from...

by gar
Replies
6\$\$
Views
261

### 151121-1936 EST darby_m: There is another...

151121-1936 EST

darby_m:

There is another factor you need to consider that may not be selfevident.

Every circuit has an inductive component, large or small, but some. What happens to the...
13. ## Thread: 4 Wire Wye Vs 4 Wire Delta - New Construction

by gar
Replies
104\$\$
Views
2,025

### 151121-1605 EST The selection may be...

151121-1605 EST

The selection may be determined by your power company.

My son is in a building supplied with a three phase two transformer wye to a 240 four wire open delta. He has six CNC...

by gar
Replies
6\$\$
Views
261

### 151121-0046 EST darby_m: There are many...

151121-0046 EST

darby_m:

There are many devices that can switch an electrical circuit. When some switching device has an actuator added to it, then it becomes a relay.

Two wires can...

by gar
Replies
14\$\$
Views
566

### 151119-2023 EST The maximum continuous power...

151119-2023 EST

The maximum continuous power rating and its stall point are close together for an internal combustion engine.

Whereas, an electrical machine can be way overloaded for a short...

by gar
Replies
14\$\$
Views
566

### 151118-0842 EST Size the generator somewhat...

151118-0842 EST

Size the generator somewhat above the actual expected normal peak load.

Put a whopping big inertia flywheel on the generator, or put a current limiting resistor in series with...
17. ## Thread: Electrical Isolation of Thermocouples

by gar
Replies
5\$\$
Views
346

### 151118-1650 EST Do as GoldDigger suggested and...

151118-1650 EST

Do as GoldDigger suggested and make the fuse end that you are measuring be grounded. Not a good idea to directly bond the thermolcouple to the fuse. Use a very thin piece of mica...
18. ## Thread: Weird (and Illegal !) 3-way Switch

by gar
Replies
51\$\$
Views
8,339

### 151118-1539 EST Dugswork: You can not just...

151118-1539 EST

Dugswork:

You can not just go grab a neutral from any old place you want.

The fundamental rule is one based on an understanding of magnetic fields:

All wires connecting to...
19. ## Thread: Multi - meter

by gar
Replies
28\$\$
Views
1,091

### 151117-0846 EST A Simpson 260/270 on the Rx1...

151117-0846 EST

A Simpson 260/270 on the Rx1 range has a short circuit (0 ohm resistor) current of about 0.1 A.

.
20. ## Thread: Bell timer help needed

by gar
Replies
46\$\$
Views
1,359

### 151116-2348 EST There still has to be a real...

151116-2348 EST

There still has to be a real time clock crystal or moderately accurate time base generator in the local device with battery back-up. The standard / daylight information comes from...
21. ## Thread: Bell timer help needed

by gar
Replies
46\$\$
Views
1,359

### 151116-2032 EST For whatever device is...

151116-2032 EST

For whatever device is selected you need to understand how the internal real time clock works.

If it is a synchronous motor driven clock, then it has to be reset on loss of AC...
22. ## Thread: Multi - meter

by gar
Replies
28\$\$
Views
1,091

### 151116-2012 EST git2work: A 1/4 W or a 10 W...

151116-2012 EST

git2work:

A 1/4 W or a 10 W or a 5000 W resistor defines how much power the physical size of the resistor can dissipate and provide long time reliable operation.

If I apply...
23. ## Thread: Power recording and quality analysis

by gar
Replies
21\$\$
Views
889

### 151116-1026 EST For low cost the TED 1000...

151116-1026 EST

For low cost the TED 1000 system can be useful for some of your goals.

The 1000 is not made anymore, but there are possibly used ones available.

Time resolution and averaging...
24. ## Thread: Two Single Phase Transformers Connected in a Bank

by gar
Replies
31\$\$
Views
1,082

### 151115-1556 EST Around our area there are very...

151115-1556 EST

Around our area there are very many two bushing primary transformers. These are for single phase loads from a delta supply or three phase loads.

At my son's shop the 3 phase...
25. ## Thread: bifurcated secondary on transformers

by gar
Replies
7\$\$
Views
348

### 151115-1415 EST What is a "bifurcated...

151115-1415 EST

What is a "bifurcated secondary"?

See http://www.merriam-webster.com/dictionary/bifurcate for basic definition. bi as a prefix implies two.