REM615E_1G HBMBCAAJABC1BNN11G 微机保护装置，继电保护器

REM615E_1G HBMBCAAJABC1BNN11G 微机保护装置，继电保护器
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ABB主营产品优势型号：REM615E_1G HBMBCAAJABC1BNN11G 微机保护装置，继电保护器

In the power sector commonly used relay protection term refers to electromechanical protection technology or by a variety of relay protection device composed of relay protection system, now called microcomputer protection device.

Possible consequences when a short circuit occurs in the system:1, through the fault point of a large short circuit current and the arc ignited, so that the fault component damage;2, short circuit current through the non-fault components, due to heating and electrodynamic action, cause their damage or shorten the service life;3. The voltage in some areas of the power system is greatly reduced, which damages the stability of the user’s work or affects the quality of the factory’s products;4. Destroy the stability of the parallel operation of the power system, cause system shock, and even collapse the whole system.Microcomputer protective device is used to automatically, rapidly and selectively to removal from the power system fault component, ruined the fault components from continue, ensure the normal operation of the other parts of the * back quickly, the second reaction is not normal operation of the electrical components, and according to the condition of operation maintenance, action on or tripping signal and reduce the load command.The basic principle of microcomputer protection1, the use of computer technology to replace the previous relay technology;2, the use of integrated circuit chip to form a small volume of protection unit box, instead of the original huge relay protection cabinet;3. Use computer software instead of relay hardware to realize automation;4, if you want to increase the protection function, as long as the relevant software can be achieved. For example: a line protection, the original only quick break and overcurrent protection, want to increase direction protection, compound voltage locking overcurrent protection, negative sequence current protection, low cycle low voltage load shedding, overload, etc., we just add related software, do not add any hardware. Add hardware only when you need special features.