Ito developed battery capacity testing technology, single large current discharge method to measure internal resistance technology, and real-time online automatic monitoring technology, which helped the industry to solve the battery maintenance test and provided a safe and efficient solution. (data centers of key departments, civil aviation, banks and financial institutions, hospitals, military, government departments, etc.)

Ito provides a series of solutions for monitoring and maintaining the storage battery in the data center, which ensures the normal and efficient operation of the data center. Nowadays, the transmission of real-time and constant data requires the server not to stop. When the power supply fails, the backup battery is the most important preventive facility for the server not to stop. Monitor the health status of the battery, troubleshoot the battery in advance, and ensure that the system can operate normally when the power supply is interrupted. SBM-2111 series battery internal resistance tester adopts the single large current discharge method to measure the internal resistance of the battery and the connection resistance between batteries quickly, safely and accurately, and is widely used in the testing and maintenance of nickel-cadmium batteries (1V alkaline batteries), lead-acid batteries (2V monomer, 4V, 6V and 12 modules) and lithium iron batteries (3V). SBM-3111 series battery internal resistance tester still adopts SBM-1111 series and SBM-2111 series single large current discharge test technology. Add connection voltage drop test, micro-ohmmeter function (optional micro-ohmmeter accessories) and U disk storage function. Strong anti-interference ability, suitable for battery testing of large UPS.

The battery internal resistance tester is one of the instruments that can accurately and effectively measure the internal resistance of batteries in the world. It is widely used in the rapid detection of battery performance, the daily maintenance of batteries, the acceptance of battery installation projects and the quality inspection of battery manufacturers.

It is recognized by the global battery industry and UPS industry that the battery online monitoring system with DC internal resistance test function is the best tool to avoid the blind spot of battery maintenance test, and it is also an important guarantee for UPS reliability. BMMS-2111 battery monitoring system is an advanced comprehensive application of Ito-eTocsin company's proprietary technology of internal resistance testing with single instantaneous high current method and other technologies. It is unique in providing early warning when the battery just begins to show signs of aging. By monitoring the internal resistance and other parameters of the battery, the system knows the condition of each battery cell at every moment. Therefore, this system can not only know the current performance of the battery pack, but also predict the future trend. The functions of the system include the monitoring of daily battery operation parameters (floating charge voltage, battery pack voltage, ambient temperature, charging and discharging current, etc.), the monitoring of battery performance parameters (internal resistance, connection resistance) and capacity testing (selecting load box), which is a comprehensive battery operation monitoring system.

2.1 battery online monitoring and management system (networked BMMS-2111)

Internet data center (IDC) usually has multiple UPS systems, battery packs for starting standby generators, battery systems for switching power supplies, and battery packs for fire prevention and security systems. So many battery packs make the monitoring work very complicated. The difference of BMMS-2111 is that it can connect all the decentralized monitoring subsystems into the network and be managed by the competent computer. As shown in the above figure, the competent computer manages multiple monitoring subsystems in a unified way. The supervisor computer can be any computer in the network accessed by BMMS, but a system can only have one supervisor computer. All monitored data are stored in the database of the competent computer. SLU series AC/DC intelligent load box is a fully automatic intelligent discharge box with constant current/constant power control by adjusting resistance. SLU series includes DC series, AC series and AC-DC series. Suitable for discharge test of battery pack, DC power supply, AC power supply and UPS system. It has dual automatic protection functions of over-current, over-voltage, over-temperature and reverse polarity. Have the functions of diagnosis and correction;

AC SLU-AC series intelligent load box is a classic constant current/constant power pure resistive AC load with adjustable resistance. Discharge parameters such as discharge current/power, discharge time and termination voltage can be programmed. Real-time display of all parameters and states during discharge. Friendly man-machine interface, simple screen and buttons, easy to operate. DC SLU-DC series intelligent load box is a classic constant current/constant power pure DC load with adjustable resistance. Discharge parameters such as discharge current/power, discharge time, termination voltage and discharge rate can be programmed. Real-time display of all parameters and states during discharge. Friendly man-machine interface, simple screen and buttons, easy to operate. The internal resistance, short-circuit current and 31I11 heavy current resistance of fixed lead-acid battery are the main important parameters of its performance. All along, these parameters can only be built in a few laboratories by simple means to test the internal resistance, short-circuit current and 31I11 large current resistance in a way of small ampere hours and approximate constant current. Because the control means are rough or manual, the consistency and accuracy of the parameters are not high. Because the internal resistance parameters of the battery have not only been used for the consideration of the load capacity of the battery and the safe design of the short circuit of the power supply system, but also widely used for the consistency inspection and operation and maintenance of the fixed lead-acid battery. The test accuracy and repeatability of this parameter are particularly important. A set of high-precision, intelligent testing equipment for internal resistance and short-circuit current of fixed lead-acid batteries, which conforms to IEC61869 standard (GB/T19638), is very urgent.

Ito BTS series lead-acid battery test system completely conforms to the test methods of IEC61869 and GB/T19638 standards, and provides the internal resistance and short-circuit current, 31I11 heavy current resistance and electrical performance (such as capacity, cycle capacity, overcharge capacity, etc.) of fixed lead-acid batteries within 3111AH. It provides an effective means to verify the standard test value for the battery internal resistance test device or instrument applied in the field, and lays a solid foundation for popularizing the internal resistance parameters for the consistency test and daily operation and maintenance of fixed lead-acid batteries. BTS-2113 passed the certification test of Cape Laboratory of China National Laboratory. There has been no suitable equipment to test the ultra-large current circuit breaker with working current of several thousand amperes or even ten thousand amperes. This puzzles the annual maintenance work of the power sector. The on-state voltage drop and current value of ultra-large current circuit breaker are not completely linear. The 211A test current used is far from the actual working state of the circuit breaker. Moreover, for Wan 'an circuit breaker with working current, the test current of 211A can only produce a voltage drop of about 1mV. The accuracy of this measurement is also problematic. The path test system of HCT ultra-large current circuit breaker can provide more than 11,111 amps of DC test current, which completely matches the working state of the circuit breaker and measures the voltage drop under ultra-large current, thus obtaining the real performance of the circuit breaker.