Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

We Value Your Feedback!
Could you please spare a few minutes to share your thoughts on Cloud Connected vs On-Premise Services. Your feedback can help us shape the future of services.
Learn more about the survey or Click here to Launch the survey
Schneider Electric Services Innovation Team!

Meter Verificatioin Issue

Metering & Power Quality

Schneider Electric support forum about Power Meters (ION, PowerTag, PowerLogic) and Power Quality from design, implementation to troubleshooting and more.

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • EcoStruxure Power & Grid
  • Metering & Power Quality
  • Meter Verificatioin Issue
Options
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Experts
User Count
Charles_Murison
Picard Charles_Murison Picard
477
Ramasamy_N
Captain Ramasamy_N Captain
113
Robert_Lee
Admiral Robert_Lee Admiral
92
Mehran_Mehrnia
Captain Mehran_Mehrnia Captain
85
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to Metering & Power Quality
Solved
Arsyad_Azhari
Lieutenant JG Arsyad_Azhari
Lieutenant JG

Posted: ‎2022-07-05 01:06 AM

0 Likes
1
2567
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2022-07-05 01:06 AM

Meter Verificatioin Issue

Dear All,

i Have this issue

 

i have experience on Power Meter Commissioning (using PM5000 series, ie pm5300 and 5500) like this :

 

- i had install metering normally (input voltage RSTN is correct and input CT RST and +- is correct), but the meter read leading power factor, and when i see the phase angle degree it says  V1-A1= 306 degree, V2-A2= 30 degree, and V3-A3=306 degree which means it may be the Phase sequence must be rotated and CT must be inverted (if we see from phasor diagram based on angle degree that we have)

- when i do wiring correction (Phase Shifting and CT inverting) the meter read is ok (sistem is lagging), but it is not correct if we see by the wiring (i mean, now after correction input voltage R meets CT input phase S, input voltage S meet CT phase T, and input voltage T meet CT phase R), however the reading is good/ok

 

how about that ?

can anyone explain it ?

Regards,

Arsyad Azhari
Labels
  • Labels:
  • PM5000
Tags (1)
  • Tags:
  • english
Reply
  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
greg_expoenergy
Lt. Commander greg_expoenergy
Lt. Commander

Posted: ‎2022-08-12 11:21 PM

0 Likes
0
2429
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2022-08-12 11:21 PM

Meter commissioning can be quite challenging if one assumes that CT's are correctly internally wired?



My experience is that often CT's in a batch from any supplier will have their internal wiring with incorrect polarity.



Typically CT's are labeled P1 ---> P2 for primary and S1 ---> S2 and some use K as the symbol



The first step is to ensure that the meter voltage and current connections are in the same phases (A, Ia    B, Ib.   C, Ic )



Once the meter is up and running note the following



Ptotal = Pa + Pb + Pc



If the individual powers are all positive then they should be additive. Let us assume that each phase is 20 kW then the total power should be 60kW.



If the active powers are correct then the reactive power and power factors will follow suit.



Now short the B&C CT's either at the CT or at the meter terminals.



The meter should read 20 kW.  If it is -20 kW then the CT polarity is incorrect so change it so it reads 20 kW



Now remove the short on CT B and the power reading should be 40 kW. If so then polarity is correct and if 0 kW then change the polarity of CT B.



Now remove the short on CT B and repeat.



What I have suggested does not require one to read the individual powers and one may use the total power only.



This problem may be compounded if one uses a POTENTIAL TRANSFORMER in an open delta connection and not a direct connect



See Answer In Context

Reply
Reply 1
greg_expoenergy
Lt. Commander greg_expoenergy
Lt. Commander

Posted: ‎2022-08-12 11:21 PM

0 Likes
0
2430
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2022-08-12 11:21 PM

Meter commissioning can be quite challenging if one assumes that CT's are correctly internally wired?



My experience is that often CT's in a batch from any supplier will have their internal wiring with incorrect polarity.



Typically CT's are labeled P1 ---> P2 for primary and S1 ---> S2 and some use K as the symbol



The first step is to ensure that the meter voltage and current connections are in the same phases (A, Ia    B, Ib.   C, Ic )



Once the meter is up and running note the following



Ptotal = Pa + Pb + Pc



If the individual powers are all positive then they should be additive. Let us assume that each phase is 20 kW then the total power should be 60kW.



If the active powers are correct then the reactive power and power factors will follow suit.



Now short the B&C CT's either at the CT or at the meter terminals.



The meter should read 20 kW.  If it is -20 kW then the CT polarity is incorrect so change it so it reads 20 kW



Now remove the short on CT B and the power reading should be 40 kW. If so then polarity is correct and if 0 kW then change the polarity of CT B.



Now remove the short on CT B and repeat.



What I have suggested does not require one to read the individual powers and one may use the total power only.



This problem may be compounded if one uses a POTENTIAL TRANSFORMER in an open delta connection and not a direct connect



Reply
Preview Exit Preview

never-displayed

You must be signed in to add attachments

never-displayed

 
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of