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

Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts.
Register and secure your Critical IT infrastructure

Sag / Swell ?? / Transient ??? / What do you think?

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
  • Sag / Swell ?? / Transient ??? / What do you think?
Options
  • Subscribe to RSS Feed
  • 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
skkim_isama_net
Lieutenant | EcoXpert Master skkim_isama_net Lieutenant | EcoXpert Master
Lieutenant | EcoXpert Master

Posted: ‎2015-07-09 12:37 AM

0 Likes
7
2022
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 12:37 AM

Sag / Swell ?? / Transient ??? / What do you think?


Hello

I do not speak English well.

I have a question for you.

I think Sag / Swell.

Why Transient ??

Module has not changed

Thanks!


Attachments
Tags (2)
  • Tags:
  • pme
  • power_monitoring_expert
Reply
  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
jbickel
Ensign jbickel
Ensign

Posted: ‎2015-07-10 07:47 AM

0 Likes
0
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-10 07:47 AM

Now that is the magic question...

Based on the information provided, all that can authoritatively be said is that it's a single-phase event lasting approximately 5 cycles. Determining the actual cause of the event would require a lot more data and contextual information.

See Answer In Context

Reply
Replies 7
jbickel
Ensign jbickel
Ensign

Posted: ‎2015-07-09 07:31 AM

0 Likes
6
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 07:31 AM

Based on the image you have provided and the definition provided by recognized PQ standards, it is a voltage sag event. A good rule of thumb is that transients are one cycle or less. In this case, the term "transient" is misleading.

Reply
DanL
Captain DanL Captain
Captain

Posted: ‎2015-07-09 10:50 AM

0 Likes
3
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 10:50 AM

Assuming this is from an ION meter, the "transient" terms are comming from the ION Transient Module. Either the querry filter (ALARM2.jpg) is hiding the Sag events generated by the SagSwell module, or perhaps the SagSwell module is mis-configured. As far as I know the default configuration of ION templates with a transient module is to disable the transient module during sag/swell events. Also possible is that the transient module's waveshape comparing algorithm detected the leading edge of the disturbance before the RMS level fell below the sag/swell module's threshold.

Reply
jbickel
Ensign jbickel
Ensign

Posted: ‎2015-07-09 12:58 PM

0 Likes
2
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 12:58 PM

The device is providing Disturbance Direction Detection information for this particular event. I know the old PowerLogic devices (CM4000/CM3350) only provided DDD information for events classified as sags or swells (for various reasons that are not pertinent to this discussion). Out of curiosity, does the ION device provide DDD information for events classified as transient events?

But back to the original question...the textbook definition of this event is that it's a voltage sag.

Reply
DanL
Captain DanL Captain
Captain

Posted: ‎2015-07-09 01:42 PM

0 Likes
1
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 01:42 PM

The DDD module source inputs are expected to be from at least the sag/swell module and optionally the transient module ("transient" detection and measurement on the ION module differs dramatically from the CM4000T transient feature). For example the ION7550 and PM8000 support SagSwell and DDD, but not transients.

The SagSwell module, transient module, and DDD modules operate independantly unless configured otherwise by linking enable/disable logic in the template. It looks like the DDD module allows any input trigger to start the capture and evaluation of waveform data to compute the direction and confidence.

Yes I agree the waveform depicts a classical voltage sag, but the event log indicates the event was detected (at least) by the transient module. Sorry about the confusion.

Dan

Reply
skkim_isama_net
Lieutenant | EcoXpert Master skkim_isama_net Lieutenant | EcoXpert Master
Lieutenant | EcoXpert Master

Posted: ‎2015-07-09 06:57 PM

0 Likes
1
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-09 06:57 PM


Thank you.

Sowhydidthis phenomenonappear?

Reply
jbickel
Ensign jbickel
Ensign

Posted: ‎2015-07-10 07:31 AM

0 Likes
0
1873
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-10 07:31 AM

Dan - Would like to talk to you offline sometime about some of the potential issues of performing DDD on transients (at your discretion).

Reply
jbickel
Ensign jbickel
Ensign

Posted: ‎2015-07-10 07:47 AM

0 Likes
0
1874
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

‎2015-07-10 07:47 AM

Now that is the magic question...

Based on the information provided, all that can authoritatively be said is that it's a single-phase event lasting approximately 5 cycles. Determining the actual cause of the event would require a lot more data and contextual information.

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