Rack UPS battery power battery detection method and testing equipment

著者：Iflowpower – Portable Power Station Supplier

Rack UPS power battery detection method and testing equipment. To ensure the safety and continuity of the electricity system, the UPS power supply plays an important use in the power supply system. Rack UPS power test Important purpose is whether the actual technical indicator of the UPS power supply meets the requirements, in order to ensure that the performance of the data center UPS power system meets the normal operation requirements, the rack must be used before the UPS input data center is loaded.

Systematic testing of the system and its related systems. Rack UPS Power Battery Detection Method Rack UPS Power Supply Motherboard General Faults Differentiation, non-parallel Wait. When repairing UPS, first check the UPS battery, then check the motherboard circuit.

If the fault appears in the motherboard circuit, you should first check the market power regulator power supply circuit, and then check the inverter circuit. (1) Do not reverse. It means that the rack type UPS is working normally through the city's energy, if the market is suddenly interrupted, the DC voltage of the UPS battery does not change to 220V (or 380V) AC voltage.

We should first measuring the voltage of the rack UPS battery. If the measurement control circuit battery voltage is too low, it will interrupt the inverter circuit operation; then check the auxiliary power supply, the inverse tube and the driver tube are damaged; finally we check the output protection Circuit. Generally, the above method can check the UPS failure point and exclude.

(2) unstable pressure. Non-online rack-type UPS power supply is unstable two, one is that the output is not stable when the exchange is input, and the second is the two cases of inverter output. When the mains input, the pressure regulator circuit controls the relay and the different taps of the transformer performs connection to output regulatory; when the inverter output voltage is detected, it is detected that the inverter then the high and low of the feedback voltage controls the square wave signal.

Width in the pulse to output voltage. Therefore, when the UPS is unstable, we will only check the pressure regulator control circuit. (3) not charging.

If the market is not interrupted, it is difficult to discover if it is not charged, and the harm of the battery is very harmful to the battery. The UPS battery may cause long-term non-charging, which can reduce the service life or raise in advance. However, it is very simple to determine whether the battery is not charged, as long as the charging circuit and the battery are connected, and then the no-load voltage of the charging circuit is detected.

Under normal circumstances, the battery voltage we test should be 13.5V. The two batteries in series should be 27V.

If the voltage is not normal, the charging circuit and control circuit should be checked. If the market voltage is too low or interrupted, the charging circuit will stop working. If the control circuit has failed, it will also cause the charging circuit to not work.

(4) Can't use the city. When the inverter output is normal, there is no output with the mains input. If you find this type of failure, you should first check the mains detection circuit, if the market-electrical detection circuit detects that the market voltage is too low or the high will issue signals to the control circuit, and the control circuit issues a control pulse to cut off the input path of the mains.

Let the UPS inverter. If the test circuit is normal, we should check the relay conversion circuit. Different control relationships and protection circuit types will also be different.

Rack UPS power system static check 1, rack UPS power input, output parameter check: input output voltage, current, frequency, power, power factor, voltage harmonic distortion. 2, input, undervoltage protection check: The analog input voltage exceeds the allowable variation range, detects if the UPS system can automatically switch to the battery power; the analog input voltage returns the normal range state, detect if the UPS system can automatically switch from the battery inverter Normal working mode. 3, output, under voltage protection check: Detection system inverter output voltage exceeds the setting, under voltage value, whether the system alarms and installed bypass power supply.

4, system circuit breaker protection detection: Detection system communication master input, bypass input, and AC output circuit breaker protection device is acceptable. 5, monitoring performance detection: Check the standard communication interface of the rack UPS system RS232 or RS485 / 422, IP / USB; system normal operation / battery inverter / bypass power supply, overload, battery discharge voltage low, market power failure , Power module status. What is the rack type UPS battery testing device? UPS Battery Monitor: The UPS Battery Monitor is a set of equipment that measures battery current and terminal voltage in battery discharge and charging, and automatically obtain test data and promptly issuing an alarm.

The battery remaining capacity can be estimated by 5-10 minutes and evaluate the battery strength, facilitate the maintenance personnel to understand the battery. Have a variety of alarm functions: can issue an alert in time and stop discharge. UPS monitoring: Rack UPS power monitoring is to collect data on the uninterrupted power supply of the machine room.

Through remote transmission, unified monitoring, management, and implement the UPS remote switch machine, remotely switching the UPS battery Charge and discharge, if you find an abnormality, you can give the administrator SMS alarm, telephone alarm, sound and light alarm, etc. to facilitate effective management, greatly saving all aspects, at the same time, can achieve 24-hour unattenders. UPS monitoring is accompanied by the development of UPS technology and product, is an important part of the UPS power supply system.

The battery inspection instrument is a device for real-time, perfect online detection and management for power system batteries. The above is the rack-type UPS power battery detection method and testing equipment. The important technical indicator of the UPS power supply is to meet the usage requirements.

Our UPS power test is usually steady-state testing and dynamic testing and routine testing this Three categories, but in addition, there are other species of the UPS power supply. Xiaobian is not explained here!.