{"id":9548,"date":"2024-08-01T15:01:34","date_gmt":"2024-08-01T12:01:34","guid":{"rendered":"https:\/\/ankaraseramik.com\/hermetic-protection-relays-mhpr\/"},"modified":"2024-10-11T14:45:20","modified_gmt":"2024-10-11T11:45:20","slug":"hermetic-protection-relays-mhpr","status":"publish","type":"page","link":"https:\/\/ankaraseramik.com\/en\/hermetic-protection-relays-mhpr\/","title":{"rendered":"Hermetic Protection Relays MHPR"},"content":{"rendered":"\t\t
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The hermetic protection relay MHPR was developed together with transformer manufacturers and power suppliers. Its main task is to monitor the oil level in transformers, which are hermetically sealed. If the oil level in the filling pipe drops, a switching contact is activated. The MHPR protective relay is available in two lengths. We also offer additional gaskets on request.Oct. <\/p>\n

Design of MHPR hermetic protective relay<\/strong><\/p>\n

The MHPR protective relay has replaced the pipe plug in the transformer filling pipe. The housing of the device is made of an aluminum alloy that is resistant to a pressure of up to 0.5 bar with a metal seal. The vertical movement of the float is transmitted to the switch. The float is made of an oil-resistant, closed porous material, thereby eliminating the risk of leaks in the float and ensuring a long-lasting buoyancy. <\/p>\n

Your advantages at a glance<\/strong><\/p>\n

-Monitoring of oil level
– The reduced oil level opens the Reed contact
– Corrosion resistant materials
– 1\/8 Globe valve for oil sampling and ventilation
Functional principle of MHPR protective relay
In a properly filled transformer, the float is in the highest position. If the oil level drops, the float moves down and turns on a button that triggers the alarm. <\/p>\n<\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Technical details<\/td>\n\t\t<\/tr>\n\t\t
Switching capacity<\/td>240 V AC\/0.4A<\/td>\n\t\t<\/tr>\n\t\t
24 V DC \/ 3 A<\/td>\n\t\t<\/tr>\n\t\t
Maximum working pressure<\/td> 50 kPa<\/td>\n\t\t<\/tr>\n\t\t
Maximum ambient temp.<\/td>100\u00b0C<\/td>\n\t\t<\/tr>\n\t<\/tbody>\n<\/table>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Installation of hermetic protective relay MHPR<\/strong><\/p>\n

The MHPR hermetic protection relay is installed on the filling pipe and replaces the R 1 1\/2 pipe plug. Under no circumstances should a 15 \u00b0 angle be lowered from the vertical. To prevent gas leakage, we recommend that you place the filling pipe on the edge of the transformer cover when the transformer is filled with oil. If the transformer and the filling pipe are completely filled with oil, you prevent any oil leakage during installation by draining about 100 cm3 of oil before MHPR installation. <\/p>\n

For more information, please download the brochure.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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