This regulation specifies the inspection content, requirements, and test wiring of the SSD540C out of step splitting device. This regulation is applicable to the on-site inspection of SSD 540C out of step disconnection device by relay protection personnel in infrastructure, production, and operation units. 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to investigate whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB 7261-2000 Basic Test Methods for Relays and Relay Protection Devices GB 14285-93 Technical Regulations for Relay Protection and Safety Automatic Devices GB/T 15145-2001 General Technical Conditions for Microcomputer Line Protection Devices GB 50171-92 Electrical Equipment Installation Engineering Panel Code for Construction and Acceptance of Cabinet and Secondary Circuit Wiring DL 478-2001 General Technical Conditions for Static Relay Protection and Safety Automatic Devices DL/T 559-94 Operation and Setting Regulations for 220-500KV Power Grid Relay Protection Devices DL/T 587-1996 Management Regulations for Microcomputer Relay Protection Devices DL/T 624-1997 Technical Conditions for Relay Protection and Power Grid Safety Automatic Devices Field Work Security Regulations for Relay Protection and Power Grid Safety Automatic Devices Inspection Regulation 3, General Rule 3.1, Relevant Compilation Instructions for this Regulation 3.1.1 The terminal numbers of the devices used in this regulation should correspond to the terminal numbers of the tested device screen during the full screen test. 3.1.2 In this regulation, the rated AC current is represented by In (i.e. In=5A or 1A), and the rated AC phase voltage is represented by Un (i.e. Un=57.7V). 3.1.3 This regulation does not include the content of simultaneous debugging and inspection of contralateral equipment through various methods. 3.1.4 This regulation is written on the premise that the product passes the factory test, so it does not include the content of factory inspection. 3.2 Basic requirements for testing equipment and wiring 3.2.1 To ensure inspection quality, a relay protection microcomputer testing device should be used, and its technical performance should comply with the provisions of the ministerial standard DL/T624-1997. 3.2.2 The test instrument should be inspected and qualified, and its accuracy should not be lower than level 0.5. 3.2.3 The wiring principle of the test circuit should ensure that the electrical quantity added to the device matches the actual situation. The test circuit for simulating faults should have the conditions for conducting a complete set of tests on the device. 3.2.4 The internal procedures for protection shall be uniformly managed by the provincial network dispatching at all levels. 3. Test conditions and requirements 3.3.1 The quality and wiring method of AC and DC test power supply shall be in accordance with the relevant provisions of the Ministry's "Regulations on the Inspection of Relay Protection and Power Grid Safety Automatic Devices". 3.3.2 Unless otherwise specified during the test, all DC power supplies added are at their rated values. 3.3.3 The test current and voltage added to the device, unless otherwise specified, refer to being added from the protective screen terminal. 3.3.4 To ensure inspection quality, for each point in all characteristic tests, the test should be repeated three times, and the error between the value of each test and the set value should meet the specified requirements. 3.4 Precautions during the test process 3.4.1 The installation and debugging of the device should be carried out by professional personnel; 3.4.2 Carefully read the instruction manual before powering on and using the device. The device should be operated, adjusted, and tested in accordance with relevant national and power industry regulations, and in accordance with the instructions. If there are random materials, the relevant parts shall be based on the random materials; Before powering on the device, the wiring should be clearly aligned with the correct diagram; 3.4.4 The device should be reliably grounded; 3.4.5 The rated operating voltage applied by the device should be consistent with the identification on the nameplate; 3.4.6 It is strictly prohibited to touch electronic devices without protective measures, and it is strictly prohibited to plug and unplug modules with power; 3.4.7 Contact device terminals to prevent electrical shock; To disassemble the device, it is necessary to disconnect all external terminal connections or cut off all input excitation quantities. Otherwise, touching the live parts inside the device may cause personal injury; 3.4.9 When testing the device, reliable testers should be used; 3.4.10 Device operation password: 99 o4 Inspection item