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nipunbatra / Home_Deployment

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What do CT measure- real or apparent current? #51

Closed nipunbatra closed 11 years ago

amarjeet-iiitd commented 11 years ago

There is nothing like real or apparent current. It measures current.

Best regards Amarjeet Singh On Jun 27, 2013 12:21 PM, "Nipun Batra" notifications@github.com wrote:

— Reply to this email directly or view it on GitHubhttps://github.com/nipunreddevil/Home_Deployment/issues/51 .

nipunbatra commented 11 years ago

Yes, that was a stupid mistake from my side.

Current is V/Z or V/R?

Let me rephrase: If i multiply instantaneous voltage (obtained from smart meter) with current- what do we get- Real Power or Apparent Power? This depends on previous answer.

On Thu, Jun 27, 2013 at 1:20 PM, amarjeet-iiitd notifications@github.comwrote:

There is nothing like real or apparent current. It measures current.

Best regards Amarjeet Singh On Jun 27, 2013 12:21 PM, "Nipun Batra" notifications@github.com wrote:

— Reply to this email directly or view it on GitHub< https://github.com/nipunreddevil/Home_Deployment/issues/51> .

— Reply to this email directly or view it on GitHubhttps://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20102355 .

amarjeet-iiitd commented 11 years ago

You will get apparent power.

Apparent power - v_i Real power - v_i*cos theta

Best regards Amarjeet Singh On Jun 27, 2013 1:30 PM, "Nipun Batra" notifications@github.com wrote:

Yes, that was a stupid mistake from my side.

Current is V/Z or V/R?

Let me rephrase: If i multiply instantaneous voltage (obtained from smart meter) with current- what do we get- Real Power or Apparent Power? This depends on previous answer.

On Thu, Jun 27, 2013 at 1:20 PM, amarjeet-iiitd notifications@github.comwrote:

There is nothing like real or apparent current. It measures current.

Best regards Amarjeet Singh On Jun 27, 2013 12:21 PM, "Nipun Batra" notifications@github.com wrote:

— Reply to this email directly or view it on GitHub< https://github.com/nipunreddevil/Home_Deployment/issues/51> .

— Reply to this email directly or view it on GitHub< https://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20102355>

.

— Reply to this email directly or view it on GitHubhttps://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20102753 .

nipunbatra commented 11 years ago

Ok. Thanks. And since we dont measure phase per circuit, so we cant get real power.

On Thu, Jun 27, 2013 at 2:50 PM, amarjeet-iiitd notifications@github.comwrote:

You will get apparent power.

Apparent power - v_i Real power - v_i*cos theta

Best regards Amarjeet Singh On Jun 27, 2013 1:30 PM, "Nipun Batra" notifications@github.com wrote:

Yes, that was a stupid mistake from my side.

Current is V/Z or V/R?

Let me rephrase: If i multiply instantaneous voltage (obtained from smart meter) with current- what do we get- Real Power or Apparent Power? This depends on previous answer.

On Thu, Jun 27, 2013 at 1:20 PM, amarjeet-iiitd < notifications@github.com>wrote:

There is nothing like real or apparent current. It measures current.

Best regards Amarjeet Singh On Jun 27, 2013 12:21 PM, "Nipun Batra" notifications@github.com wrote:

— Reply to this email directly or view it on GitHub< https://github.com/nipunreddevil/Home_Deployment/issues/51> .

— Reply to this email directly or view it on GitHub<

https://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20102355>

.

— Reply to this email directly or view it on GitHub< https://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20102753>

.

— Reply to this email directly or view it on GitHubhttps://github.com/nipunreddevil/Home_Deployment/issues/51#issuecomment-20106057 .