Surge Arresters
Polymer-Housed Surge Arrester
The distribution class surge arrester is the most common type of protective devicesused on power systems today.The primary function of the distribution surge arrester is toprotect the insulation of distribution class oil-filedtransformers.GRL supplies both polymer-housed and porcelain-housed surge arresters up to 48kV.
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<table><thead><tr class="firstRow"><th>Model</th><th width="74">Rated Voltage (kV)</th><th width="22">MCOV (kV)</th><th width="99">Nominal Discharge Current (kA)</th><th width="85">1/4 μs Lightning Current Impulse</th><th width="101">8/20 μs Lightning Current Impulse</th><th width="100">30/60 μs Lightning Current Impulse</th><th width="117">2000 μs Rectangular Current Impulse Withstand</th><th width="169">4/10 μs High Current Impulse Withstand</th></tr></thead><tbody><tr><td>DNYH10W-3</td><td width="74">3</td><td width="22">2.55</td><td width="99">10</td><td width="87">11.3</td><td width="101">9</td><td width="100">8.9</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-6</td><td width="74">6</td><td width="22">5.10</td><td width="99">10</td><td width="85">22.3</td><td width="101">18</td><td width="100">16.8</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-9</td><td width="74">9</td><td width="22">7.05</td><td width="99">10</td><td width="85">33.7</td><td width="101">27</td><td width="100">23.8</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-10</td><td width="74">10</td><td width="22">8.40</td><td width="99">10</td><td width="85">36</td><td width="101">30</td><td width="100">26.4</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-11</td><td width="74">11</td><td width="22">9.40</td><td width="99">10</td><td width="85">40</td><td width="101">33</td><td width="100">30</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-12</td><td width="74">12</td><td width="22">10.20</td><td width="99">10</td><td width="85">42.2</td><td width="101">36</td><td width="100">27</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-15</td><td width="74">15</td><td width="22">12.70</td><td width="99">10</td><td width="85">51</td><td width="101">45</td><td width="100">38.5</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-18</td><td width="74">18</td><td width="22">15.30</td><td width="99">10</td><td width="85">61.5</td><td width="101">54</td><td width="100">46.2</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-21</td><td width="74">21</td><td width="22">17.00</td><td width="99">10</td><td width="85">71.8</td><td width="101">63</td><td width="100">54.2</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-24</td><td width="74">24</td><td width="22">19.50</td><td width="99">10</td><td width="85">82</td><td width="101">72</td><td width="100">62</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-27</td><td width="74">27</td><td width="22">22.00</td><td width="99">10</td><td width="85">92</td><td width="101">81</td><td width="100">69.8</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-30</td><td width="74">30</td><td width="22">24.40</td><td width="99">10</td><td width="85">102</td><td width="101">90</td><td width="100">79</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-33</td><td width="74">33</td><td width="22">27.50</td><td width="99">10</td><td width="85">112</td><td width="101">99</td><td width="100">86.7</td><td width="117">250</td><td width="169">100</td></tr><tr><td>DNYH10W-36</td><td width="74">36</td><td width="22">29.00</td><td width="99">10</td><td width="85">123</td><td width="101">108</td><td width="100">92.4</td><td width="117">250</td><td width="169">100</td></tr></tbody></table>
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