Recent Posts

91

TED Pro Support / Re: Spyder CTs

« Last post by pfletch101 on February 20, 2018, 09:46:03 AM »

I have seen this misconception in several post in this forum.  When talking about a dual pole breaker which is typically used in 240V residential applications, A 50A 2 Pole breaker is 2 50A single 1 pole breakers mechanically interlocked.   Each leg of the breaker trips at 50A.  If one leg trips the other also is tripped.  In most 240V loads, there is very little neutral current.  Please explain why some appear to believe  that each leg of a 50A breaker only carries half the current and will trip at 25A

I am one of those responsible for the posts you cite. I had believed that they were based on a published statement from what I regarded as a definitive authority, but I can no longer find my source, so you may well be right. Could I ask you, however, to cite an authoritative documentary source, so that this can definitively be put to rest? In particular, my impression had been that double breakers with a individual current marking on each 'arm' of the breaker were, as you say, rated at the stated current on each side, but that double breakers with a single rating embossed on the link bar were rated at that total current (divided between the two sides).

92

TED Pro Support / Re: Total cumulative energy meter

« Last post by Support7 on February 20, 2018, 09:18:48 AM »

Hi,

You can export monthly data for up to the last 10 years by going to Footprints > Export > Export Monthly Data. The storage information can be found in the manual located at
http://www.theenergydetective.com/media/wysiwyg/TED%20Pro%20User%20Manual%20rev3.9%20small.pdf

TED Pro stores data internally in its ECC.  This data can be retrieved at any time and graphed displayed in graphic
form.  The data available for viewing is:

SECONDS
 - one hour of second-data in increments from Live (real-time) recording, 30-seconds, or 1, 2, 5, 15,
30 and 60 minutes.

MINUTES
 -  48 hours of minute-data may be displayed in increments from 30 minutes; 1, 2, 4, 12, 24, 36, to 48
hours.

HOUR
       - 90 days of hourly data are stored.  Historical Hourly Data is viewable for any selected date-range
in increments of 7-day periods.  Specific Hourly Data can be viewed in kWh,
Voltage, or Dollars.

DAY           
- 2 years of Daily data are stored.    Daily Data is viewable for any selected range for the prior 2
years in 90-day periods.  Data viewable is: kWh, Dollars, Minimum/Maximum Voltage, Minimum/
Maximum Cost, Minimum/Maximum Power (kW).

MONTH
     - 10 years of Monthly data are stored.  Data viewable is: kWh, Dollars, Minimum/Maximum Voltage,
Minimum/Maximum Cost, Minimum/Maximum Power (kW).

93

TED Pro Support / Total cumulative energy meter

« Last post by tryphon on February 20, 2018, 07:46:02 AM »

Hello,

I have the TED Pro Home device. With my browser I can display some xml pages to see many data.

I search for a field that indicates the total cumulative energy since the TED birth (i. e. not from the beginning of the current billing cycle).

Does it exist and where to find it?

Thank you

94

TED1000 Support / Re: Is there an upgrade to Footprints for TED series 1000?

« Last post by Peerapatpp on February 20, 2018, 05:15:22 AM »

I read the content. It is very useful. Can be used in daily life.

95

TED5000 Support / Re: History suddenly incomplete

« Last post by Peerapatpp on February 20, 2018, 05:15:13 AM »

This content makes me feel that it is very useful. It is a new knowledge for me that I never knew.

96

TED Pro Support / Re: Spyder CTs

« Last post by PVAndy on February 17, 2018, 10:34:53 PM »

I have seen this misconception in several post in this forum.  When talking about a dual pole breaker which is typically used in 240V residential applications, A 50A 2 Pole breaker is 2 50A single 1 pole breakers mechanically interlocked.   Each leg of the breaker trips at 50A.  If one leg trips the other also is tripped.  In most 240V loads, there is very little neutral current.  Please explain why some appear to believe  that each leg of a 50A breaker only carries half the current and will trip at 25A

L1 
   120V
N            L1-L2  240V
   120V
L2 

Current from L1 going to a 240V load returns through L2  (not the neutral)

The breaker on L1 & L2 are both carrying the same current and will trip at the rating of the breaker.

When sizing CT's  unless the CT's are Extended Range CT (which many are) thr rating of the CT is the max current at which rated accuracy is maintained.

A 20A CT with an extended range  of 2 can be used to measure 40A loads.

Andy

Sr Electrical Engineer

97

TED Pro Support / Re: Best CT size for 2 pole breakers

« Last post by PVAndy on February 17, 2018, 10:02:31 PM »

?  How do you figure that each pole of a 2 pole 50A Breaker is only carrying 25A.

Typically 2 Pole residential breakers are used for 240V and each pole is rated and will trip at 50A.

Andy

98

TED Pro Support / Re: going solar

« Last post by toptek on February 17, 2018, 05:37:26 AM »

cool thanks i was told Net Metering ...

99

TED Pro Support / Re: going solar

« Last post by pfletch101 on February 16, 2018, 08:33:03 PM »

You should be able to add anything you need - probably just another main MTU/CT set for the solar feeds - but how easy installation will be depends on how your new PV system connects to your breaker panels and/or to the mains. If to your main panel, with a single bidirectional meter and Net Metering, you should have no trouble at all; if directly to the utility mains via a separate second meter ("Feed-in Tariff"), how straightforward it will be to hook things up depends on the details of the physical layout.

100

TED Pro Support / going solar

« Last post by toptek on February 16, 2018, 01:30:07 PM »

Going solar I was approved today for solar and was told it may take up to four month to be turned on an in about two to three weeks it will be installed

I have the Ted pro home do i need to buy a completely new package or just a few things for solar ? .
I would like to keep using the TED if i can with solar, i love it .


Harry