Abstract: The application provides a modification of gas density relay, a gas density relay with online self-check function and its check method for high-voltage and medium-voltage electrical equipment. The gas density relay includes a gas density relay body, a gas density sensor, a pressure regulating mechanism, a valve, an online check contact signal sampling unit and an intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay body. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value of the gas density relay body according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site.

Abstract: The application provides an electrical system with online sampling and check function and its check method for high-voltage and medium-voltage electrical equipment, including electrical equipment, gas density relay, gas density sensor, valve, pressure regulating mechanism, online check contact signal sampling unit and intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay of electrical equipment. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site, which greatly improves the reliability of the power grid and the work efficiency, and reduces the O&M cost.

Abstract: A contact signal acquisition circuit for online checking a gas density relay on site is provided, including a first connecting circuit, connecting a contact of a gas density relay to a contact signal control loop, and a second connecting circuit, connecting a contact of the gas density relay to a contact signal sampling interface of an online check device. In a non-checking state, the second connecting circuit is disconnected, and the first connecting circuit is closed; and in a checking state, the first connecting circuit is disconnected, and the second connecting circuit is connected, so as to connect the contact of the gas density relay to the contact signal sampling interface of the online check device, guaranteeing that no contact action signal is uploaded during checking and safe operation of a power grid is not affected.

Abstract: The application provides an electrical system with online sampling and check function and its check method for high-voltage and medium-voltage electrical equipment, including electrical equipment, gas density relay, gas density sensor, valve, pressure regulating mechanism, online check contact signal sampling unit and intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay of electrical equipment. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site, which greatly improves the reliability of the power grid and the work efficiency, and reduces the O&M cost.

Abstract: The application provides a modification of gas density relay, a gas density relay with online self-check function and its check method for high-voltage and medium-voltage electrical equipment. The gas density relay includes a gas density relay body, a gas density sensor, a pressure regulating mechanism, a valve, an online check contact signal sampling unit and an intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay body. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value of the gas density relay body according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site.

Abstract: The present disclosure provides a contact signal acquisition circuit for online checking a gas density relay on site.

Abstract: Techniques for transforming character delimited values are presented herein. An input module is configured to read a set of character delimited values. A generation module is configured to generate a synchronization block for the set of values that includes a value selected from a byte size of the associated value and may be a flag representing a predetermined value. An output module is configured to output the synchronization block and the set of values to a binary data output stream for output in a device dependent byte order according to the respective byte sizes of the values in the set of values.

Abstract: Techniques for transforming character delimited values are presented herein. An input module is configured to read a set of character delimited values. A generation module is configured to generate a synchronization block for the set of values that includes a value selected from a byte size of the associated value and may be a flag representing a predetermined value. An output module is configured to output the synchronization block and the set of values to a binary data output stream for output in a device dependent byte order according to the respective byte sizes of the values in the set of values.

Abstract: Techniques for transforming character delimited values are presented herein. An input module may be configured to read a set of character delimited values. A generation module may be configured to generate, in real-time, a synchronization block for the set of values that includes a nibble for each value in the set of values. The nibbles may represent either a byte size of the associated value or may be a flag representing a predetermined value. An output module may be configured to sequentially output the synchronization block and the set of values to a binary data output stream for output in a device dependent byte order according to the respective byte sizes of the values in the set of values.

Abstract: Techniques for transforming character delimited values are presented herein. An input module may be configured to read a set of character delimited values. A generation module may be configured to generate, in real-time, a synchronization block for the set of values that includes a nibble for each value in the set of values. The nibbles may represent either a byte size of the associated value or may be a flag representing a predetermined value. An output module may be configured to sequentially output the synchronization block and the set of values to a binary data output stream for output in a device dependent byte order according to the respective byte sizes of the values in the set of values.