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<td><a href="https://misportal.jlab.org/ll/index.jsf?function=view&lessonId=1188">Portable Generator Output Voltage Failure Savannah River National Laboratory </a></td>
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<h2 style="white-space:nowrap">Statement of Lessons Learned</h2>
<pre>Before operating a portable generator, evaluate that the power required and the output voltage setting of the generator are identical. On August 9, 2022, equipment was damaged because the voltage output selector switch on a portable generator was set to 480 volts rather than the 120V required by the receiving trailer. (See Photo 1) When turned on, several fuses blew and the trailer's equipment was damaged.
<img src=" https://misportal.jlab.org/ll/downloadAttachment?attachmentId=6606" width="500px">
</pre>
<h2 style="white-space:nowrap">Discussion of Activities</h2>
<pre>On August 9, 2022, a replacement portable generator as delivered to replace a failed unit that was supplying power to communication equipment in a trailer. Proper hazardous energy controls were utilized to transfer the leads from the failed generator to the replacement.
At approximately 1:30pm, the replacement generator was started and the output breaker closed, energizing the trailer. At that point several fuses blew, and the trailer was de-energized. Troubleshooting activities ensued and it was discovered that the generator's voltage output selector switch was set to 3 Phase, i.e. 480 volts, rather than the Single Phase, i.e. 120V the trailer required.
</pre>
<h2 style="white-space:nowrap">Analysis</h2>
<pre>Several years ago, communication equipment was placed in the trailer powered by a portable generator. Phone and internet were connected and several other upgrades were added over the years. Regular repairs and maintenance were completed for habitability.
The morning of the incident, the original generator had failed and a replacement was requested via a service order. The replacement generator was delivered and placed next to the failed one, and the leads were swapped to the replacement. The replacement was then started and the output breaker on the trailer was closed. Immediately surge protectors started activating/tripping, so the replacement generator was shut down.
Troubleshooting indicated that the voltage selector on the replacement generator was set in the wrong position. When it was set in the correct position and re-started it successfully restored power to the communication equipment in the trailer.
A walk down of the affected area was performed. Damage was inflicted to one computer monitor, six surge protectors, 24 LED lighting fixtures, and two air conditioning units. </pre>
<h2 style="white-space:nowrap">Recommended Actions</h2>
<pre>1. Start-up instructions on the door of the generator were not followed (See Photo 2)
2. The replacement generator's output selector switch position was not verified.
3. The replacement generator was started up by personnel that were unaware of the voltage/phase/load requirements
<img src=" https://misportal.jlab.org/ll/downloadAttachment?attachmentId=6607" width="400px">
</pre>
<h2 style="white-space:nowrap">JLab Preventive Measures</h2>
<pre></pre>
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<h2>Comments</h2>
<h5 style="white-space:nowrap">8/24/2022 12:06:10 PM by Bailey, Mary Jo</h5>
<pre>Submitted to those current in:
SAF502: Forklift Operator
SAF603: Understand the basics of electrical safety</pre>
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<legend>Summary</legend>
<table>
<tr class="row">
<td class="label" nowrap>Lesson ID:</td>
<td class="dataval">1188</td>
</tr>
<tr class="row">
<td class="label" nowrap>Status:</td>
<td class="dataval">OK</td>
</tr>
<tr class="row">
<td class="label" nowrap>Doc ID:</td>
<td class="dataval">2022-JLAB-1188</td>
</tr>
<tr class="row">
<td class="label" nowrap>Priority:</td>
<td class="dataval">Caution</td>
</tr>
<tr class="row">
<td class="label" nowrap>Safety Related:</td>
<td class="dataval">YES</td>
</tr>
<tr class="row">
<td class="label" nowrap>Originator:</td>
<td class="dataval">Bailey, Mary Jo</td>
</tr>
<tr class="row">
<td class="label" nowrap>Issued:</td>
<td class="dataval">8/24/2022 11:48:58 AM</td>
</tr>
<tr class="row">
<td class="label" nowrap>Approved By:</td>
<td class="dataval">Bailey, Mary Jo</td>
</tr>
<tr class="row">
<td class="label" nowrap>Approved On:</td>
<td class="dataval">8/24/2022 12:06:10 PM</td>
</tr>
<tr class="row">
<td class="label">Source:</td>
<td class="dataval">
DOECRD
</td>
</tr>
<tr class="row">
<td class="label" nowrap>Location:</td>
<td class="dataval">SRNL</td>
</tr>
<tr class="row">
<td class="label" nowrap>Cost Savings:</td>
<td class="dataval"></td>
</tr>
<tr class="row">
<td class="label" nowrap>Contact:</td>
<td class="dataval">Matt McCoy, Saltstone Operations Manager, (803) 208-6011</td>
</tr>
<tr class="row">
<td class="label" nowrap>Queued Emails:</td>
<td class="dataval">168</td>
</tr>
<tr class="row">
<td class="label" nowrap>Sent Emails:</td>
<td class="dataval">0</td>
</tr>
<tr class="row">
<td class="label" nowrap>Viewings:</td>
<td class="dataval">1 times</td>
</tr>
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<li><a target="_blank" href="https://misportal.jlab.org/ll/downloadAttachment?attachmentId=6606">Photo 1 - Savana River - Generator.jpg</a></li>
<li><a target="_blank" href="downloadAttachment?attachmentId=6607">Photo 2 - Savana River - Generator.jpg</a></li>
<li><a target="_blank" href="downloadAttachment?attachmentId=6608">OPEXShare Savana River - Generator.pdf</a></li>
</ul>
<hr>
</fieldset>
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<legend>Hazard Issues</legend>
<ul class="lesson_attribute_listing">
<li>Electricity</li>
<li>Material Handling Equipment</li>
</ul>
</fieldset>
<fieldset>
<legend>Skills</legend>
<ul class="lesson_attribute_listing">
<li>SAF502: Forklift Operator</li>
<li>SAF603: Understand the basics of electrical safety</li>
</ul>
</fieldset>
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<legend>Distribution/Notification</legend>
<ul class="lesson_attribute_listing">
<li>*Division Safety Officers (DSOs)</li>
<li>*Safety Wardens</li>
<li>*DOE Notification</li>
<li>*ESH&Q Liaisons</li>
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