GB/T 28270-2012Intelligent valve electric actuators (English PDF)

Foreword

This standard rule according to GB/T 1.1-2009 given draft. The standard proposed by China Machinery Industry Federation. The standard valve by the National Standardization Technical Committee (SAC/TC188) centralized. This standard is drafted by: Hefei General Machinery Research Institute, built in Yangzhou Electric Power Equipment Factory, Changzhou Power Station Auxiliary Equipment Factory Co., Ltd., yellow Shan-liang industry Valve Co., Ltd., Tianjin Baili Machinery Co., Teflon Group Co., Ltd. Tianjin Ai Kete valve control equipment Limited, Shanghai Automation Equipment Co., Ike tournament, Tianjin Automation System Co., Ogilvy & Mather. The main drafters of this standard. Huang Minya, Liu Weijun, ginger orientation, items Megan, ZHAO, Li Jinshuo, Cao style recording, from the day the king, Zhuojie Wei, Fee to the military, Zhu Yueyao. Intelligent electric valve actuators

1 Scope

China's national standard for intelligent valve electric actuators. It specifies the terminology, the technical requirements, the test methods, the inspection rules and the marking, packaging, transport and storage of the electric actuators that operate valves under their own control, and it applies to the direct-drive on-off and modulating intelligent actuators. A valve actuator turns a valve, which sounds like a motor and a gearbox and for most of the twentieth century was one. What makes an actuator intelligent is that the control that used to live in a cabinet somewhere lives inside it: position sensing, torque sensing, the logic that decides whether a valve has reached its seat or has jammed, the local display and configuration, and a digital interface to the plant control system. That relocation changes what the device is and therefore what a standard for it must cover. A conventional actuator was specified by its torque, its speed and its duty rating, and everything else was the responsibility of whoever wired it. An intelligent actuator carries its own commissioning: the end positions are set from the keypad rather than by mechanical limit switches, the torque limits are set in software, and the actuator itself decides how to close - on position, on torque, or on a combination - according to the valve it is fitted to. It also reports: the position, the torque signature, the operating count, the temperature and the fault log, which is what allows a valve to be maintained on evidence rather than on a schedule. So the standard specifies the mechanical output, the electrical supply and protection, the control interface, the configuration and self-diagnosis, and the environmental protection of a device that lives outdoors on a pipeline. Issued on 11 May 2012 and in force since 1 December 2012.

This standard specifies the intelligent electric valve actuators (hereinafter referred to as Intelligent Denso) terminology, technical requirements, test methods, inspection rules, marking Chi, packaging, transport and storage conditions. This standard applies to direct drive motor switching, intelligent modulating electrical equipment.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document.

GB 755 rotating motor fixed and performance

GB/T 3797 electrical control equipment

GB 4208 enclosure protection (IP code)

GB 4824 industrial, scientific and medical (ISM) radio-frequency equipment - Electromagnetic disturbance characteristics - Limits and methods of measurement

GB/T 12222 multi-turn valve actuator connecting means Turn valve actuator connected to the GB/T 12223 part GB/T 13306 signage

GB/T 15479 industrial automation instruments of insulation resistance, dielectric strength technical requirements and test methods

GB/T 17626.2 electromagnetic compatibility test and measurement techniques - Electrostatic discharge immunity test

GB/T 17626.3 electromagnetic compatibility test and measurement technology RFEMS test

GB/T 17626.4 Electromagnetic compatibility Testing and measurement techniques - Electrical fast transient burst immunity test

GB/T 17626.5 electromagnetic compatibility test and measurement technology surge (impact) immunity test

GB/T 17626.6 electromagnetic compatibility test and measurement technology RF field induction of immunity to conducted disturbances

GB/T 17626.8 electromagnetic compatibility test and measurement techniques - Power frequency magnetic field immunity test

GB/T 17626.11 electromagnetic compatibility test and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests Part

3 Terms and Definitions

GB/T 24923 and define the following terms and definitions apply to this document.

3.1 The control unit controlunit Receiving input control signals to control the motor start, stop and direction of rotation, and outputs an electrical signal corresponding to the operating state of the electrical components.

3.2 Intelligent electric valve actuators inteligentvalveelectricactuator Embedded microprocessor control unit, both man-machine interface, operating data recording, parameter configuration, fault diagnosis and protection