adccommunitymod (AutomationDirect) asked a question.
Monitoring Energy Usage (kWh)
Created Date: October 14,2008
Created By: chris.zeman
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I'm working on an energy management system for our facility, and would like the ability to monitor energy usage in each of the buildings. I want to display current usage (kW) and total consumption (kWh) on an HMI. What would be the best way to do this (getting the information into a DL-260)? I 've been looking at various products, but would like some input. :) Thanks! Chris
Created Date: October 14,2008
Created by: Tom Jenkins
The most accurate way for each location with a separate power utility meter is to have the utility add a pulse relay to the meter. They usually do that at low cost.
Load Controls Corp. has some economical kW transmitters.
Created Date: October 14,2008
Created by: milldrone
Chris,
Here are some CR magnetics items that you may be interested in.
A 4 to 20 sensor. http://www.crmagnetics.com/newprod/ProductView.asp?ProdName=CR6250
A rs485 model for 3phase 3 wire. http://www.crmagnetics.com/newprod/ProductView.asp?ProdName=CRD5150
A rs485 model for 3phase 4 wire. http://www.crmagnetics.com/newprod/ProductView.asp?ProdName=CRD5170
Created Date: October 17,2008
Created by: chris.zeman
Thank you for the suggestions! I'll check those out! :)
Chris
Created Date: October 17,2008
Created by: Kristjan H
You can install a power meter and connect it directly via Modbus to your D2-260 Port 2. Then you have access to a whole lot of variables including kW, kWh, current on each phase etc.
One of the providers is http://www.frer.it/indexing1.htm
Created Date: October 21,2008
Created by: j_ellis
I have used the EIB Shark 100S wireless ethernet power meter. these cost $700.00 ea. They have great range and allow you to monitor many power quality functions. because its wifi you can install in short order and start getting data without alot of wiring.
http://www.powermeterstore.com/c774/wireless_sub-meters.php
Created Date: October 14,2008
Created by: chris.zeman
I'm working on an energy management system for our facility, and would like the ability to monitor energy usage in each of the buildings. I want to display current usage (kW) and total consumption (kWh) on an HMI. What would be the best way to do this (getting the information into a DL-260)? I 've been looking at various products, but would like some input. :)
Thanks!
Chris