Farady oil immersed transformer 1000kVA and above, shall be installed outdoor thermometer type signal, and then the distant signal

Farady oil immersed transformer 1000kVA and above, shall be installed outdoor thermometer type signal, and then the distant signal. 800kVA and above should be installed oil-immersed transformer gas relay and pressure protection device, 800kVA transformer oil-immersed according to the following requirements, in consultation with the manufacturer, but also can be equipped with gas relay. dry type transformer price shall be specified by the manufacturer, the installation of a temperature measuring device, and more generally for the 630kVA transformer installations.