Electrical system with on-line sampling verification function and verification method thereof

An electrical system with online sampling and check function, characterized in that it comprises:

• an electric equipment, in which an air chamber is arranged, and the air chamber is filled with insulating gas;
• a gas density relay, which is mounted outside the air chamber of the electrical equipment, or mounted outside the air chamber of the electrical equipment via a valve;
• a temperature regulating mechanism, which is a regulating mechanism capable of regulating temperature and configured to regulate temperature rise and fall of a temperature compensation element of the gas density relay, so that the gas density relay takes contact signal action;
• a gas density detection sensor, which is communicated with the gas density relay;
• an online check contact signal sampling unit, which is connected with the gas density relay and configured to sample contact signals generated when contacts of the gas density relay body take action;
• an intelligent control unit, which is respectively connected with the gas density detection sensor, the temperature regulation mechanism and the online check contact signal sampling unit, and is configured to control at least one of:
• the temperature regulation mechanism, pressure value acquisition, temperature value acquisition, gas density value acquisition, detect the contact signal operating value and contact signal return value of the gas density relay;
• the contact signals include at least one of alarm signals and blocking signals.