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Label: "power standards & regulations"

View in: "Power Distribution and Digital Support" | Community

62 Posts | First Used: 2020-05-07

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Informational
Manon_Chaboud
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What is meant by Services in electrical distribution?

In the electrical distribution industry, the term “services” refers to a wide range of activities that support the full lifecycle of electrical equipment. These go beyond installation or traditional ma...
Power Distribution IEC icon_circle Power Distribution and Digital Support
152 2 0

2025-09-11

Informational
Manon_Chaboud
/html/rank_icons/Commander.png Manon_Chaboud /html/rank_icons/SE-Employee.png

What is load shedding in electrical distribution?

Load shedding is a controlled process used in electrical distribution systems to prevent a complete blackout when the demand for electricity exceeds the supply. It involves intentionally reducing ...
Power Distribution IEC icon_circle Power Distribution and Digital Support
6278 4 3
Latest Reply: RHH

Informational
Manon_Chaboud
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The Primary and Secondary distribution in electrical systems

Understanding the fundamental distinction between Primary and Secondary distribution in electrical systems is pivotal for designing efficient and reliable electrical distribution systems tailored to sp...
Power Distribution IEC icon_circle Power Distribution and Digital Support
1874 4 3
Latest Reply: RHH

J_Travostino
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Discover the Forum through a Short Introduction Video

Have look at the short video below to discover your Power Distribution & Digital forum added-value and how it could help you in your daily work, bringing you efficiency, expertise and experience. ...
Power Distribution IEC icon_circle Power Distribution and Digital Support
7237 6 0

2021-05-11

MS81
MS81

RCCB QR Code EAN/Serial

Greetings, Could you please find attached. We have downloaded the following Schneider app and attempted to scan the QR code of this RCCB breaker, but we are not receiving any information for this QR co...
Power Distribution IEC icon_circle Power Distribution and Digital Support
32 0 0

2025-09-20

Solved
zezo
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ungrounded star system 4 wires

for 11/.4kv transformer the lv is ungrounded star what is the effect of first line to ground fault on the ....? 1- 3 phase load (motor). 2- single phase line to neutral loads on healthy phases? 3- sing...
Power Distribution IEC icon_circle Power Distribution and Digital Support
235 0 2
Latest Reply: Romain_Polette

Kanon.w
Kanon.w

Cascading table for CVS250 Upstream and iK60H Downstream

As per the tile, is there a Cascading table for CVS250 Upstream and iK60H Downstream? I found one for iK60N (attached in the image from 2022 EasyPact Coordination Table pdf), however we need one for iK...
Power Distribution IEC icon_circle Power Distribution and Digital Support
119 0 1
Latest Reply: Manon_Chaboud

Informational
Sylvain_C
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Introducing IEC TS 62271-320: A Step Toward more Sustainable High-Volt...

The new IEC TS 62271-320 has been published, introducing specifications for sustainable design in high-voltage (HV) switchgear. This technical specification emphasizes environmentally conscious design ...
Power Distribution IEC icon_circle Power Distribution and Digital Support
419 3 1
Latest Reply: Manon_Chaboud

Solved
simon00011
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contact resistance

which code/industry standard shows bus-to-lug acceptable contact resistance for 1KV switchgear used in Canada or US? Thanks!
Power Distribution IEC icon_circle Power Distribution and Digital Support
1625 0 7
Latest Reply: Chris1969

Solved
ISLAM_EL-MALAHANY
ISLAM_EL-MALAHANY

CONNECTING SINGLE PHASE LOAD TO 3P MCCB

I HAVE NSX100F 25A 3P MCCB AND NEED TO CONNECT A SINGLE-PHASE LOAD.IS IT POSSIBLE? AND WHAT IS THE METHODOLOGY OF CONNECTION?
Power Distribution IEC icon_circle Power Distribution and Digital Support
690 0 1
Latest Reply: NeiB

nick83
nick83

Automatic disconnection in case of a fault

We are including NSX circuit breakers with Micrologic 2.2 trip units for some of the final circuits in our main distribution cabinet ( C16N4 with C1642D160)When verifying Zs × Ia ≤ Uo condition accordi...
Power Distribution IEC icon_circle Power Distribution and Digital Support
337 0 1
Latest Reply: Manon_Chaboud

Solved
J_Travostino
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Welcome & Get Started to Power Distribution & Digital Forum!

--> Get TransferPacT and major contents not to miss What is Power Distribution & Digital Forum about? This forum has been designed to learn, share and get expert answers for your questio...
Power Distribution IEC icon_circle Power Distribution and Digital Support
2167 1 1
Latest Reply: S-W

Solved
J_Travostino
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Announcement - Power Distribution Experts wanted!!

You are an experienced professional with decades in power distribution solution design, implementation or operation? Or a young electrical engineer with a passion for the latest technologies? You are a...
Power Distribution IEC icon_circle Power Distribution and Digital Support
1582 7 1
Latest Reply: S-W

Anonymous user
Anonymous user

L-G fault current calculations (IEC 60909-0) and TR 60909-4 2021

How does IEC 60909-0 and IEC TR 60909-4 calculated L-G fault values? I do not see the value of 3 Zn. I can only see Z1+Z2+Z0. Where is 3Zn? If I have a separate PE conductor with my phase conductors, h...
Power Distribution IEC icon_circle Power Distribution and Digital Support
1362 0 1
Latest Reply: S-W

Solved
Anonymous user
Anonymous user

Is IEC 61439 standard that drives harmonic levels in a healthcare faci...

Harmonics plays a critical role in all healthcare facility and impacting various system •X-rays, computerized axial tomography, etc. pollutes the system due to their high level of harmonics productio...
Power Distribution IEC icon_circle Power Distribution and Digital Support
1775 1 2
Latest Reply: S-W

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