DC screen charging module FN-22010 V10 power supply module FN-22020, rectifier module FN-11010, FN-11020, FN-22005, FN-11005, FN-22030, FN-22040, FN-22003, FN-22007 V10
DC screen charging module T4820-30, power module T4820-30, rectifier module T4820-30, high-frequency charging module T22020-3, high-frequency power module T22020-3, T22010-3, T11010-3, T11020-3, T22005-3
1 System Overview
1 1 System Overview Introduction The T4820-30 series power supply system adopts the most advanced phase-shift resonant high-frequency switching technology, which is specially designed for small and scattered communication equipment, with high efficiency, wide input voltage range, high power factor, compact structure and other characteristics, and high performance. The system is monitored by the CU3000 control module. The control module provides the user with a user interface in the form of a menu, and the user only needs to follow the prompts on the menu to select step by step, and can use the various rich functions of the system, which is very convenient to operate. Through the single-chip microcomputer control of the control module, the system can be operated stably and automatically adjusted, and it has complete functions such as alarm, automatic protection and battery monitoring. The system also has a standard RS232 interface, which can be easily connected with any intelligent centralized monitoring system. The central unit of the system is the SMR1804 rectifier module, which adopts the most advanced phase shift resonant switching technology and constant power output control mode to reduce the loss of power switching components and improve efficiency. The module also has a power factor correction circuit, and the power factor can reach 0995。The rectifier module has a built-in CPU control board, which can detect and display the current, temperature, and alarm signals of the rectifier module in real time through the CU3000 control module, and control the output of the rectifier module to turn on and off. Since the T4820-30 power system is a parallel redundant system with a multi-module structure, as long as the system configuration capacity is slightly larger than the sum of the actual load and battery charging current, the system reliability can be much higher than that of the rectifier module itself. The system has good electromagnetic compatibility, and is small in size, small in audible noise, and can be installed in the same room with other communication equipment, which not only saves space, but also reduces transmission loss. The main functions and characteristics of the system T4820-30 power supply system is controlled by a control module, the system is designed in the form of a combined rack, the upper part of the rack is the DC power distribution unit and the control module unit, the middle part is installed with the rectifier module sub-frame, and the lower part is the system AC power distribution. The rectifier module is installed in the sub-rack, and the rectifier module plug in the sub-rack is a seismic plug, which is reliably connected to the socket of the rectifier module. Each system can be installed with 2 rectifier module sub-racks, and 6 SMR1804 rectifier modules can be installed in each sub-rack. The system can be configured with a capacity of 30A 360A, and the capacity configuration required by the user can be obtained through the combination of different number of sub-racks and rectifier modules. The main function of the T4820-30 power supply system is to rectify the AC mains into direct current, and provide it to communication switches and other communication equipment after voltage stabilization. The control module provides system monitoring and communication functions; The current of the rectifier module in the system can be displayed on the control module respectively, and the control module can turn off a single rectifier module; In addition, a lightning arrester is set at the input end of the system, and a surge is set at the output end.
1 System Overview
2 absorbers, so that the system has better lightning protection function. System working principle T4820-30 power supply system is an intelligent high-frequency switching DC power supply system based on microprocessor, its main function is to rectify the alternating current sent from the mains power grid into direct current and provide communication switches and other communication equipment after voltage stabilization treatment. This function is mainly completed by the SMR1804 rectifier module in the system. In order to facilitate control and maintenance, the control module is set up in the system, and the control module is mainly responsible for controlling and coordinating the work of the rectifier module, monitoring the working condition of the system, reporting to the maintenance personnel in time when the system is abnormal, and providing a unified and easy-to-use centralized operating environment to the operator at the same time, and providing a monitoring interface to the higher-level centralized monitoring system. The system charges and monitors the battery at the same time.
Technical Specifications 3 2 Technical Specifications 21 Main parameters of T4820-30 (48V 150A) power system T4820-30 (48V 150A) power supply system is in the form of a comprehensive rack, and the upper part of the rack is a DC power distribution unit; 1 rectifier module is installed in the middle of the shelf, and 6 T22020-3 rectifier modules can be installed in each sub-shelf (the rectifier module is cooled by a built-in fan); An AC power distribution unit is installed in the lower part. The power input is two 480V 60Hz AC power, which is converted to 380V AC by the transformer and sent to the rectifier module. Input voltage Three-phase four-wire AC480V (normal operation in the range of -45% +35%) Output voltage 48V Output current (full configuration) 150A DC distribution circuit voltage drop 300mV (full load output) 150mV (half load output) Noise 52dB (a) Automatic control function Protection function The system should have the automatic protection functions of over-voltage, over-current, under-voltage, short circuit and over-temperature, in which the over-voltage, over-current, under-voltage and over-temperature protection have the function of automatic recovery and automatic battery charging The system discharges the battery after the power is off, and the control module automatically records the discharge information. When the system restarts after the mains power is restored to normal, the system will be charged evenly or float according to the discharge capacity or discharge time of the battery, and it will automatically turn into a floating charge state after the end of the charge, and the charging process will be automatically controlled. Automatic temperature compensation function With the change of the ambient temperature of the battery, the floating charge voltage of the system can be automatically adjusted according to 1 5mV cell (which can be set according to the battery parameters), the higher the battery temperature, the lower the float charge voltage, the lower the battery temperature, the higher the float charge voltage. Battery Charging Current Limiting Function The system has a current limiting function for the battery charging current, and the current limiting value can be set according to the battery capacity, and the current limiting value is not affected by the load change. Battery cut-off function The system can set the cut-off protection value twice according to the battery parameters, cut off different loads according to the battery discharge voltage, realize the secondary power-off protection function, prevent the battery from over-discharge, and ensure the long-term power supply of important equipment such as transmission. After the mains power is restored to normal, the normal power supply will be automatically restored. Battery capacity test function Through the automatic control of the monitoring module, the system can realize the test of battery capacity under the condition of ensuring normal load, and understand the reference capacity of the battery in time. 2.2 Main parameters of SMR1804 series rectifier module Rectifier module model Rectifier module Technical parameters SMR1804
Technical Specifications 4 22.1. When the input rated voltage is single-phase 220 VAC and the working voltage range is 175 295VAC (220VAC -20% +35%), ** when the rated capacity output is 85 185VAC (220VAC -60% -20%), the 650W 1800W linear limited power output Overvoltage protection When the voltage is higher than 300 5VAC, the module will automatically cut off the input; When the voltage is restored to 2755VAC, it will be automatically restored. Under-voltage protection When the voltage is lower than 80 VAC, the module will automatically stop working; When the voltage is restored to 120 VAC, the current 11A is automatically restored at a frequency rate of 50 60Hz 10% with a power factor of 0998 (rated full load output) 0995 (50% load load output) 0993 (30% load load output) 22.2. Output voltage 48V (43 576VDC adjustable) current 30a@576V output power: 1800W, parallel current sharing, 2%, voltage regulation, accuracy 05% protection Output over-voltage, over-current, under-voltage, short circuit and over-temperature protection 22.3. Other data efficiency: Cooling method: 91% (rated full-load output) 908% (50 load output) Temperature-controlled fan cooling Operating temperature -5 +50 Storage temperature -40 +70 Relative humidity 95 Altitude 4000m, output *** protection level IP20 Ripple voltage 200mvp-p Balanced noise 2mvrms Reliability MTBF>25 105h load effect (load regulation) 04% load effect recovery time (dynamic response) 200 s source effect (grid regulation) 005%