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Protection & Control

Schneider Electric support forum about Protection Relays, Substation Controllers & RTUs, Arc Flash Devices & Systems in Medium Voltage and Low Voltage. A place to get support on product selection, installation, commissioning and troubleshooting.

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Dear Forum members, 

Welcome in Protection & Control Forum! Involving professionals in Design, Quotation, Panel manufacturing, Installation, Commissioning and Operation can get expert answers to their questions.

This Forum will especially benefit:

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Protection & Control

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Araceli_Monje
Commander Araceli_Monje Commander

Welcome & Get Started to Protection & Control Forum!

Ready to discover our fully renewed Protection & Control portfolio? What is Protection & Control Forum about? This forum has been specifically designed to find support about: Protection...
EcoStruxure Power & Grid icon_circle Protection & Control
1263 1 0

2023-04-06

SWA_123
SWA_123

EPO_2024 WebHMI Error for showing Real Time Values

Hi All, In my EPO Project, I can bind the values of the Equipment (Power Meters and Controller) by using the Text and Text Box in Graphic Editor. And, I can see the Values in Preview of Graphic Edito...
EcoStruxure Power & Grid icon_circle Protection & Control
28 0 0

2025-12-03

Solved
milica_dukic_
Ensign milica_dukic_

PowerLogic T300 - issue with P5F30.cid file

Dear all, we have an issue with importing P5F30 .cid file. When we try to save a configuration with imported .cid file there is a following warning. (picture attached)Do anyone have the issue l...
EcoStruxure Power & Grid icon_circle Protection & Control
217 0 3
Latest Reply: Shaogang_WANG

alireza1368
alireza1368

MCB 2P

I have bought a 2P MCB of schneider and its datasheet have been pointed that N connection is left terminal. I want to know if there is any technicall issue about this. On other hand, if I connect the N...
EcoStruxure Power & Grid icon_circle Protection & Control
46 0 0

2025-11-27

Informational
DhananjayJamdade
Crewman DhananjayJamdade Crewman

PowerLogic T500 - Maximum capacity of buffer events in case of Scada c...

Hello All, I understand that HU280 CPU hold the protocol buffer events in case of SCADA connection failure initially and thereafter power loss/reboot. However, I would like to know maximum number of ...
EcoStruxure Power & Grid icon_circle Protection & Control
249 0 2
Latest Reply: DhananjayJamdade

POWERGRIDS
POWERGRIDS

P3T32 - CT ratio not working properly

Dear all, We are facing a problem, with a brand new P3T32 relay. We set the CT ratio @2500/1 at the LV side (CT'), but when we inject 1A, with Omicron the relay measures 2000A instead of 2500A. The...
EcoStruxure Power & Grid icon_circle Protection & Control
133 0 1
Latest Reply: Karthik.P

Solved
Benjamin4
Benjamin4

MiCOM P242 IEC870-5-103

Hello, I have a question regarding P242 IEC870-5-103 addresses. I've downloaded the relay database excel file and I'm curious what does it mean in the table when there isn't a "star" in the model num...
EcoStruxure Power & Grid icon_circle Protection & Control
162 0 2
Latest Reply: Benjamin4

Solved
Jay_CRP12
Jay_CRP12

Change Network protocol in P345 generator protection relay

I want to change the network protocol settings in the P345 relay, but cannot find the ETH COMM mode option in the system data while accessing via relay HMI. Please guide me How I can change the network...
EcoStruxure Power & Grid icon_circle Protection & Control
141 0 1
Latest Reply: Arun-kumar_PS

Kirdim241
Kirdim241

Use a regular copper busbar instead of a flexible busbar.

Is it possible to use regular copper busbar instead of flexible busbar, without any kind of exceeding the distances of clearance & creepage to connect MCCB, range from 250A up to 630 A with the mai...
EcoStruxure Power & Grid icon_circle Protection & Control
80 0 0

2025-11-24

AS19
AS19

Latest HW/FW for MiCOM Px30 PR family with full IEC 61850 Ed. 2.1 supp...

Dear Schneider Electric team, Please help me with some clarifications regarding the MiCOM Px30 PR family (protection relays for transmission and railway applications). I am working on a new traction po...
EcoStruxure Power & Grid icon_circle Protection & Control
74 0 0

2025-11-22

med
Crewman med

T300 for a 3-Source ATS System

Hello everyone,I’m working on configuring a 3-source ATS using a Schneider PA T300, and I’m not sure which method is required. Can this logic (source selection, priority, switching commands, interlocks...
EcoStruxure Power & Grid icon_circle Protection & Control
89 0 0

2025-11-17

Dahhoodd
Dahhoodd

PowerLogic P5U20 Connection to PLC

Hi. I have a P5U20 that I want to integrate to a CompactLogix PLC over ethernet . How do I go about this?
EcoStruxure Power & Grid icon_circle Protection & Control
185 0 2
Latest Reply: Shaogang_WANG

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