Valve-regulated lead-acid battery “VRLA” (also known as maintenance-free battery) as a back-up power supply in various fields, the extensive use of the surface sense of the maintenance-free. As the power industry and the telecommunications industry base stations, substations and other fields increasingly high degree of unattended, resulting in all kinds of batteries in the course of problems. Such as: electric power system minutes / closing operation failed or UPS failure, the communications industry breakdown in communications, and so on, will have serious consequences. The traditional methods of battery maintenance takes a lot of manpower and material resources on a regular basis for testing.
ZJK3-B Series battery monitoring system is mainly used in various industries for remote monitoring of battery, so that staying at home and can always understand the different batteries on-line running. Power DC operating power supply, communications, power or large capacity UPS systems are used by more than just a concatenation of the accumulator battery. Since the battery used in tandem, when either a battery failure, may cause the entire battery pack does not work.
To prevent accidents, DC power toshiba PA3399U-1BAS battery， toshiba PA3399U-1BRS batterysystem equipped with multi-battery tester. According to test theory can be divided into the following categories:
1. Judged by measuring the internal resistance of battery performance battery
This method must be discharged battery pack can not be used in-line continuous monitoring. And the battery internal resistance with ohm impedance and electrochemical impedance reflects a variety of factors, measured under different conditions of battery internal resistance vary greatly, it is difficult to make accurate judgments on the battery performance. And measurement principles of complex and costly.
2. By measuring the battery terminal voltage to determine battery performance
This method is easier to achieve cell-line inspection. The battery terminal voltage and batteries are the relationship between electric potential and resistance, measuring the battery terminal voltage comparison can reflect the actual state of the battery toshiba PA3399U-2BAS battery， toshiba PA3399U-2BRS battery. Produced using this principle battery inspection device in the power system has been widely used. But the measurement of each battery terminal voltage must be on the connection, when the cell number of more or distance, it will use a lot of sample cables, installation of wiring complexity, and the quantity likely to cause ground cable or short circuit accident. Thus the method is used for the following 18 test battery.
2, ZJK3-B surveillance system is characterized by
Composition and Theory
ZJK3-B battery monitoring systems use a dedicated integrated chip monitors the battery voltage, current, temperature, and the remaining capacity of the dedicated chip and a microprocessor packaged together into a single sensor, a battery of data collected for each sensor, 20 sensors were divided into a Groups http://www.ec8080.com/connected to a hub. Hub Management 20 sensors and collected data transmission to the display units, display unit for data processing and adoption of large-screen liquid crystal display. May be right temperature, voltage and current parameters set alarm conditions, when there is an exception signal control the output relay sound and light alarm. Display unit can connect up to 10 hubs, simultaneous monitoring of up to 200 cells.