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Switching Power Supply for Telecommunication

Capacity: 30-1000A
Features: Integrated with communication power, AC and DC power distribution;Modular rectifier with hot-swappable function;Compatible with LiFePO4 batteries and lead-acid batteries
Description: E48 Series is switch power supply for telecommunication with capacity from 30A to 1000A

Application Field
Base stations, small and medium size switching centers, wave network communications, satellite communications, data communications, data centers etc.

Performance Characteristics
High reliability
1.Ultra-wide mains input range: more suitable for harsh grid environment.
2.Perfect battery management: with functions of temperature compensation, automatic equalization,
floating charge control, automatic voltage regulation,battery capacity calculation and online battery testing.
3.Adopt advanced CPU and multiple microprocessor control technology to make the switching power supply more stable and more reliable.

Excellent Design
1.The rectifier module adopts non-destructive hot-swappable technology to realize less than 1minute replacement time.
2.Compatible with LiFePO4 batteries and lead-acid batteries for different application scenarios.
3.Digital-control active power factor correction technology with input power factor 0.99 to avoid pollution to the grid.

Perfect Protection
1.With input over and under voltage protection,output over, under voltage protection, short circuit protection, over current protection, lightning protection, fan fault alarm protection, fault display, historical alarm record storage and other functions to ensure the reliable operation of load equipment.

Performance

1.Input

Item

Parameter

Unit

Remark

Input Voltage Range

Start 140—290

Vac

The input voltage range is the phase voltageof three-phase AC, and the system startingvoltage shall be greater than or equal to140vac

Running 90-290

Rated Voltage

220

Vac

Phase voltage

Voltage Frequency

43—67(Typical value is 50/60)

Hz

PF

≥0.99

Full load working condition

2.Output

Item

Parameter

Unit

Remark

Rated Voltage

-53.5

Vdc

Input 220Vac

Voltage Range

-42 ~ -58

Vdc

Adjustable by monitoring (test condition: noload)

Single Module Capacity

30 or 50

A

Flexible configuration according torequirements

Output Current

30 ~ 1000

A

Under rated output conditions, 300A outputis guaranteed at 90-176vac input

Output Ripple and Noise

≤200

mVp-p

The bandwidth of the oscilloscope shall be

20MHz, and the probe shall be connectedin parallel with 10u + 104 capacitor

Power On Output Delay

3 ~ 8

S

Input 220VAC, AC input is calculated afterthe AC contactor is pulled in

Voltage Stabilizing Accuracy

≤±1%

Noise

Broadband Noise voltage

≤100

mV

3.4—150 KHz

≤30

mV

150—30 MHz

Index

Telephone Weight Noise voltage

≤2

mV

Dynamic

Response

Overshoot

Amplitude

V: ≤5

%Vo

25%—50%—25% or 50%—75%—50% Loadchange

Recovery

Time

t: ≤500

µS

Current Sharing Imbalance

≤5%

Module parallel 50%—100% Rated outputPower modules can work in parallel

Temperature coefficient

±0.02

%/

Output Efficiency

≥92%

220Vac/ Rated load (typical)

≥87%

110VAC/Rated load

3. Alarm and Protection Points

Item

Parameter

Unit

Remark

System Input Over voltageCut-off

298±5

VAC

Automatic recovery, recovery point290V±5V

Module Input Overvoltage  Protection

≥300

VAC

Output 0A( ACSOURCE+ Voltageregulator test

System Input Under voltagecut-off

68±5

VAC

Automatic recovery, recovery point136V±5V

4. Physical Characteristics

Dimension and weight are subject to the power distribution module size and power module capacity.



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