Combination power supply system

The new generation of high-performance standard communication power supply developed and designed by Guangdong Yishite Power Supply Co., Ltd. adopts advanced technologies such as soft switching, intelligent control of air cooling and heat dissipation, electromagnetic shielding, etc., and is widely used in GSM/CDMA base stations, small and medium-sized exchanges, satellite communication, data communication, railways, and power systems with a wide range of power grid fluctuations

Functional units can be subdivided into AC input/output distribution units; AC/DC rectifier unit; DC input/output distribution unit; Backup battery pack and other functional units.
Diversified combination configurations, capable of single cabinet or multiple cabinet combinations, suitable for medium and large capacity communication rooms.
Supports multiple specifications of AC input (mains power, oil engine, UPS, etc.), and supports manual/automatic switching of dual channel AC input (optional configuration).
Comprehensive battery management. It has load shedding (LVLD), battery low voltage protection (LVBD), and secondary shedding functions, which can achieve temperature compensation, automatic float charging control, automatic voltage regulation, battery capacity calculation, online battery testing, and other functions.
Networked design, providing multiple communication interfaces (such as Ethernet, RS232, RS485, dry contacts), flexible networking, limited local and remote monitoring, and unmanned operation.
Provide multi branch signal extension (6 sets of dry contact input&8 sets of alarm dry contact output, normally open/normally closed optional).
Supports midpoint voltage detection for multiple battery groups, with a maximum of 4 groups supported.

The switch mode power supply system is suitable for base stations, small and medium-sized exchange offices, satellite communication, data communication and other occasions in multiple environments. The system has excellent performance, easy operation, and is easy to install and maintain on a daily basis.

Communication input:
Rated input voltage: 220V
Communication input range: 90~280V
Communication input frequency: 45-66Hz
Power factor: ≥ 0.99
Power:>92%

DC output：

Rated input voltage: 48V
Voltage range: 42~60V
Rated current: 50A~600A
Load splitting: MCB output capacity 6A~63A optional, FUSE output capacity 63A~160A optional
4 FUSE+6 MCBs for power splitting at once
Secondary power down shunt 6-way MCB
Battery shunt: 500A × 2
Load LVD: 400A × 1 (optional)
Battery LVD: 400A × 1 (set according to actual situation)
Wiring method: Front wiring
Rectification module: EARM4850, EARM4850H
Monitoring module: EASM-B

mechanical properties：

Dimensions: 1600mm (height) x 600mm (width) x 400mm (depth)
Weight: ≤ 110kg (including rectifier module)

temperature：

Working temperature: -40-+70 ℃
Humidity: ≤ 95% without condensation

Safety characteristics：

Input output 3000Vac/10mA/1min without arcing or breakdown
Input - Chassis 2500Vac/10mA/1min without arcing or breakdown
Output - chassis 500Vac/10mA/1min without arcing or breakdown