Bender insulation monitor working principle introduction

Bender Bender Insulation Monitor Operation Bender Bender Insulation Monitor is a device for online real-time detection and management of the insulation status of the bus and branch of the DC power system. Safety and EMC are CE certified. Bender Bender insulation monitor has been widely used in the detection and management of various specifications of power operation power system, solar photovoltaic grid-connected system, DC remote power supply system, HVDC high-voltage DC power system insulation state.
Bender's Binder insulation monitor power plant and substation DC power supply as the main electrical equipment security power supply and control signal power, is a very large multi-branch power supply network. Under normal circumstances, one-point grounding does not affect the operation of the DC system. However, if the ground fault point cannot be quickly found and repaired, another ground fault occurs, which may cause a major fault.
Bender's Bender insulation monitor detection methods mainly include bridge balance principle and low frequency detection principle. The insulation monitoring device realized according to the principle of bridge balance is widely used, but it can not detect the situation that the positive and negative insulation of the DC system are equally reduced; the Bender Binder insulation monitor device can not directly obtain the insulation resistance of the system to the ground even if it alarms. size. Using low frequency detection principle to detect ground fault is a new method adopted in recent years, but the grounding resistance it can detect is restricted by the distributed capacitance of the DC system to the ground, and the low frequency AC signal is easily interfered by the outside, and the injected low frequency. The AC signal increases the voltage ripple factor of the DC system. It can be seen that there are several insurmountable defects in the principle of bridge balance and the principle of low frequency detection. This paper proposes a new detection method, that is, the main circuit uses the unbalanced bridge to detect the total insulation resistance, and the branch uses a DC transformer to detect which way the insulation is reduced. At the same time, the single chip microcomputer is used to realize this detection method. How does Bender's Bender insulation monitor work?
Bender Bender Insulation Monitor Notes: 1. JYCL6.0 contains multiple DC voltage inputs, all power must be disconnected before servicing.
2. The fuse input to the power input line of the acquisition device must be configured. The recommended type of 220V system fuse is 0477002.MXP (or rated voltage 220Vdc, capacity 2A, slow-melting similar device (the device must pass the safety certification); 110V system recommended fuse type is 0215004.MXP or rated voltage 110Vdc, A device with a capacity of 4A, slow-melting characteristics (the device must pass the safety certification).
3. The positive and negative poles of the power bus input should be configured with the above insurance. In addition, in order to achieve sufficient safety, the selected fuse must be greater than 1.75mm when the fuse is blown; if it is equipped at the power input Mechanical circuit breakers do not require a fuse distance for insurance.
4. In order to ensure the reliable operation of the insulation detection function, the ground terminal on JYCL6.0 must be reliably grounded. The grounding holes on the JYCL housing base must be secured to the cabinet ground with M4 spring washer screws to allow reliable grounding to the cabinet.
5. Static electricity generated by the human body can damage static sensitive components such as ICs on the circuit board in JYCL. Before touching the device, in order to prevent the human body from damaging the sensitive components, you must wear an anti-static wrist strap and ground the other end of the anti-static wrist strap.
Germany Bender is a professional manufacturer specializing in low voltage system leakage protection technology. Since 1939, the founder of the company, Mr. Vettel Bender, invented the first insulation monitor. Since the founding of Bender in 1946, the company has experienced nearly 70 years of development. To this day, Bender is still a world leader in insulation monitoring and leakage protection technologies for low voltage ungrounded systems, grounding systems and resistance grounding systems.
Bender's system solutions protect the safe and reliable operation of electrical equipment and protect people from electrical leakage. Compliance with various international and national standards is a priority in our product design. At the same time, we must balance the ease of operation, wide applicability and safety of the equipment itself. Therefore, Bender's products are in the international and domestic markets. It has won the trust of professional users in various industries.
The company's technical core staff is a member of many international and German standards committees, directly involved in the development of electrical safety and measurement standards in the fields of industry, construction, medical care, transportation, etc., which gives the company a potential development advantage and has established the company. A global leader in low voltage system leakage protection technology. In China, we have participated in the revision and formulation of the national standard and various industry norms in the medical industry. Bender's products have been recognized by many industry authorities and experts.
Bender has accumulated decades of experience in the research and development of electrical safety products, and as the first German company to obtain ISO9001 quality certification, the control of product quality runs through the whole process of enterprise management and strictly abides by ISO9001. standard. The factory inspection of the products is strictly carried out in accordance with EC standards and CE specifications and other relevant international or German standards.