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#inverter

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Open Power Electronics<p>Why do high dv/dt pulses from a drive inverter cause 'First Turn Winding Failure' in a motor? Excellent illustration from Gambica, UK.</p><p><a href="https://mastodon.energy/tags/MotorDrive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MotorDrive</span></a> <a href="https://mastodon.energy/tags/Inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Inverter</span></a> <a href="https://mastodon.energy/tags/dvdt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dvdt</span></a></p><p>Source: <a href="https://www.gambica.org.uk/static/uploaded/e41820bb-886a-463b-829aaa07c6ec486c.pdf" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">gambica.org.uk/static/uploaded</span><span class="invisible">/e41820bb-886a-463b-829aaa07c6ec486c.pdf</span></a> (Figure 11, Page-12)</p>
Blackbird<p>Zwecks Auffindbarkeit ein paar Hastags dazu:<br>Untersuchte Hersteller: <a href="https://freiburg.social/tags/Huawei" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Huawei</span></a> <a href="https://freiburg.social/tags/Sungrow" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sungrow</span></a> <a href="https://freiburg.social/tags/GinlongSolis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GinlongSolis</span></a> <a href="https://freiburg.social/tags/Goodwatt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Goodwatt</span></a> <a href="https://freiburg.social/tags/GoodWe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GoodWe</span></a> <a href="https://freiburg.social/tags/SMA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SMA</span></a><br>Allgemein: <a href="https://freiburg.social/tags/PV" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PV</span></a> <a href="https://freiburg.social/tags/WR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WR</span></a> <a href="https://freiburg.social/tags/Wechselrichter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Wechselrichter</span></a> <a href="https://freiburg.social/tags/Solar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Solar</span></a> <a href="https://freiburg.social/tags/Inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Inverter</span></a> <a href="https://freiburg.social/tags/SunDown" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SunDown</span></a> <a href="https://freiburg.social/tags/Forescout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Forescout</span></a> <a href="https://freiburg.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a> <a href="https://freiburg.social/tags/Hacker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hacker</span></a> <a href="https://freiburg.social/tags/SmartHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SmartHome</span></a> <a href="https://freiburg.social/tags/IoT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IoT</span></a><br><a href="https://www.forescout.com/research-labs/sun-down-a-dark-side-to-solar-energy-grids/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">forescout.com/research-labs/su</span><span class="invisible">n-down-a-dark-side-to-solar-energy-grids/</span></a><br><span class="h-card" translate="no"><a href="https://social.bund.de/@bsi" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>bsi</span></a></span></p><p>Recommendations<br>Manufacturers<br>Development • Devices: holistic security architecture including secure boot, binary hardening, anti-exploitation features, permission separation etc<br>• Applications: proper authorization checks on web applications, mobile applications and cloud backends<br>Testing • Regular penetration testing on applications and devices • Consider bug bounty programs<br>Monitoring Web Application Firewalls Remember that a WAF does not protect against logical flaws</p><p>Users <br>Residential and commercial users • Change default passwords and credentials • Use role-based access control • Configure the recording of events in a log • Update software regularly • Backup system information • Disable unused features • Protect communication connections<br>Commercial and utility installations (in addition) •<br>Include security requirements into procurement considerations<br>• Conduct a risk assessment when setting up devices • Ensure network visibility into solar power systems • Segment these devices into their own sub-networks • Monitor those network segments</p>
Schembrirg<p>"Discover Electric Motors Online, a Family Run Business with over 30 years of experience in the Electric motor and automation industries. Proud distributors and resellers for major manufacturers, providing exceptional service 24/7, 365 days a year. Based in Lancashire, with offices in West Sussex. <a href="https://mastodon.social/tags/ElectricMotors" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ElectricMotors</span></a> <a href="https://mastodon.social/tags/Automation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Automation</span></a> <a href="https://mastodon.social/tags/ProfessionalService" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ProfessionalService</span></a> <a href="https://mastodon.social/tags/automation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>automation</span></a> <a href="https://mastodon.social/tags/pumpprotection" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pumpprotection</span></a> <a href="https://mastodon.social/tags/motor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>motor</span></a> <a href="https://mastodon.social/tags/electricmotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electricmotor</span></a> <a href="https://mastodon.social/tags/inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>inverter</span></a> <a href="https://mastodon.social/tags/vsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vsd</span></a> <a href="https://mastodon.social/tags/vfd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vfd</span></a> <a href="https://mastodon.social/tags/singlephasemotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>singlephasemotor</span></a> <a href="https://mastodon.social/tags/threephasemotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>threephasemotor</span></a> <a href="https://mastodon.social/tags/ie3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie3</span></a> <a href="https://mastodon.social/tags/ie4" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie4</span></a> <a href="https://mastodon.social/tags/ie2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie2</span></a> <a href="https://mastodon.social/tags/plc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>plc</span></a> <a href="https://mastodon.social/tags/hmi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hmi</span></a> <a href="https://mastodon.social/tags/servo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>servo</span></a> <a href="https://mastodon.social/tags/gearbox" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gearbox</span></a></p>
Open Power Electronics<p>Fundamental component of a Quasi-Square Wave (QSW) voltage as shown below has a peak value of (4/𝝅)Vdc*cos(α) = 1.27Vdc*cos(α)</p><p><a href="https://mastodon.energy/tags/FourierSeries" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FourierSeries</span></a> <a href="https://mastodon.energy/tags/PowerElectronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerElectronics</span></a> <a href="https://mastodon.energy/tags/Inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Inverter</span></a></p><p>Source: Slides 8-9 → <a href="https://www.slideserve.com/lapis/inverters-dc-ac-converters" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">slideserve.com/lapis/inverters</span><span class="invisible">-dc-ac-converters</span></a></p>
Schembrirg<p>"Discover Electric Motors Online, a Family Run Business with over 30 years of experience in the Electric motor and automation industries. Proud distributors and resellers for major manufacturers, providing exceptional service 24/7, 365 days a year. Based in Lancashire, with offices in West Sussex. <a href="https://mastodon.social/tags/ElectricMotors" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ElectricMotors</span></a> <a href="https://mastodon.social/tags/Automation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Automation</span></a> <a href="https://mastodon.social/tags/ProfessionalService" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ProfessionalService</span></a> <a href="https://mastodon.social/tags/automation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>automation</span></a> <a href="https://mastodon.social/tags/pumpprotection" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pumpprotection</span></a> <a href="https://mastodon.social/tags/motor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>motor</span></a> <a href="https://mastodon.social/tags/electricmotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electricmotor</span></a> <a href="https://mastodon.social/tags/inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>inverter</span></a> <a href="https://mastodon.social/tags/vsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vsd</span></a> <a href="https://mastodon.social/tags/vfd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vfd</span></a> <a href="https://mastodon.social/tags/singlephasemotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>singlephasemotor</span></a> <a href="https://mastodon.social/tags/threephasemotor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>threephasemotor</span></a> <a href="https://mastodon.social/tags/ie3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie3</span></a> <a href="https://mastodon.social/tags/ie4" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie4</span></a> <a href="https://mastodon.social/tags/ie2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ie2</span></a> <a href="https://mastodon.social/tags/plc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>plc</span></a> <a href="https://mastodon.social/tags/hmi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hmi</span></a> <a href="https://mastodon.social/tags/servo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>servo</span></a></p>
Alex S.<p><span class="h-card" translate="no"><a href="https://mastodon.world/@humanhorseshoes" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>humanhorseshoes</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.ozioso.online/@RTENewsHeadlinesRSS" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>RTENewsHeadlinesRSS</span></a></span> <br>A small and cheap <a href="https://troet.cafe/tags/inverter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>inverter</span></a> for the car does the trick, it converts 12 Volt from a car to mains voltage (230 V and 50Hz).</p><p>These start at 100€.</p><p><a href="https://troet.cafe/tags/PowerFailure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerFailure</span></a> <a href="https://troet.cafe/tags/blackout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>blackout</span></a> <a href="https://troet.cafe/tags/powerOutage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powerOutage</span></a> <a href="https://troet.cafe/tags/powerloss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powerloss</span></a></p>
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