Posts Tagged ‘medium voltage’

Common problems in medium voltage switchgear

May 5th, 2017 | 1 Comment | Posted in Panel Building
Tags: , ,

megaphone-redAs protection is the first concern in power systems design, companies spare no effort to upgrade protection devices to better, safer, smarter and more efficient devices.

This is obvious at a glance in the development of switchgear. Probably you know what switchgear is, but you don’t know the reason why switchgear got this name. Nor what are the most encountered problems in MV switchgear.

That’s what our fellow electrical engineer Yasser is going to explain today in this article he gently sent us! Leave your impressions below.

(more…)

LV and MV Switchgears – How to inspect, test and measure?

May 21st, 2015 | 4 Comments | Posted in Electrical Safety
Tags: , ,

Eric S., one of the readers of the blog sent us an article in which he gives information on how to inspect, test and measure low and medium voltage switchgears. But first, he starts with few words on the importance of these checks and maintenance.

Enjoy and don’t forget you can send us your articles by mail.

Importance of routine checks and regular maintenance

If switchgears are installed in well ventilated, air-conditioned and clean environmental conditions, they do not require much maintenance.

LV-MV-Switchgears-maintenance

Major inspections are needed and are done only during plant shut downs. These inspections include contact wear identification, checking on interlock operations, observing overload settings, size of the fuses employed, overheating and finally, checking if there is any dirt or corrosion in the switchgear components.

In case of medium voltage switchgears, more concentration should be placed on checking the protective devices, oil levels in the circuit breaker and contact distances of the vacuum bottles and see if they are as per the manufacturer’s specifications.
(more…)

5 most common starter device types (LV/MV motor starters)

April 16th, 2015 | Make a comment | Posted in Energy Efficiency - motors
Tags: , ,

Hi it’s Steven Mill. I think I’ve never written on this topic before, so let me tell you about motor starters…

starter device

A starter, more or less acts as a supervisor of the motor. It controls the power supply, defies switching of overloads, and also takes on the duty of disconnecting the motor from the mains, when deemed necessary.

As we can read about the topic:

“A starter can be defined as a combination electric motor controller, which can start or stop the motor with the help of external switches, protect the motors from getting overloaded, and disconnect them from the mains, in case of a serious power or load fluctuation, by taking help from the integral disconnecting devices.”

(more…)

Top 10 factors that govern selection of medium voltage drives

November 14th, 2014 | 1 Comment | Posted in Electrical distribution
Tags: , ,

Few weeks ago, we recieved this very interesting article from a senior engineer. Just for us, he made a list of 10 factors that should drive you to select medium voltage drives.

So here’s an expert’s advice…

Though medium voltage drives have been around for more than three decades now, high quality and reliable medium voltage drives have only been available since the past few years.

Specifying and choosing high quality medium voltage drives can often be a tedious task, because there are many parameters that govern its quality and performance.

High Quality Medium Voltage Drives

High Quality Medium Voltage Drives

Many companies claim that the drives manufactured by them are of high quality, even if they are not. Because, they believe that, not many people will go into the details. And that’s true! Only an experienced electrical engineer would know the difference between a high quality and ordinary voltage drive.

Depending on my 15 years of experience, as a project manager for a reputed steel company, I would recommend you to carefully examine the below top 10 factors that can actually help you to differentiate high quality and ordinary medium voltage drives:

(more…)

Benefits and applications of medium voltage

August 28th, 2014 | 2 Comments | Posted in Electrical distribution
Tags: , ,

Benefits and applications of medium voltage according to Marvin M, one of the member of the community.

Introduction

Traditionally, any voltage over 600 V would evoke thoughts of high danger from the perceived high voltage. Engineers and technicians alike would abandon any systems operating over that limit and instead focus on the low voltage components, citing relative low risk levels.

Today, however, high skill levels, standards and installation requirements ensure that working with medium voltage is safe. It accords the following benefits.

(more…)

Electrical engineering Community is proudly powered by WordPress
Entries (RSS) and Comments (RSS) and license Creative Commons License