Problems That Should Be Paid Attention To When Using Hydraulic Mechanism For Sf6 Circuit Breaker Operating Mechanism

For hydraulic mechanisms, atmospheric pressure can be ignored in engineering because it is compared with the pressure of about 300 MPa. However, if atmospheric pressure is also ignored when the pressure is corrected by "pressure-temperature" conversion when SF6 gas is filled in sf6 circuit breaker operating mechanism for maintenance, a large error will be caused for the rated pressure of 0.5 MPa. Therefore, for the "former", formula 1 should be used for calculation. For the reading of the density relay installed on sf6 circuit breaker spring mechanism, as long as it is intact after testing, its reading does not change with temperature.