سیستم برق مخابراتی تعبیه شده 48 ولت 300 آمپر

1.Input characteristics

ON.

Project

Technical parameter

Remarks

1.1

AC input rated voltage

Single-phase 220Vac / three-phase 380Vac

1.2

 AC-input voltage range

176Vdc～300Vac

Full of work

1.3

AC input maximum current

40A

1 phase, the most power supply: 2 modules

1.4

AC input voltage frequency

45~65Hz (Typical value 50 / 60Hz )

1.5

AC power factor

≥0.99

220 Vac rated load

1.6

Pv module input

120Vdc ~ 425Vdc(starting voltage over 160Vdc)

1.7

Pv-rated input voltage

340Vdc

1.8

MPPT voltage range

120Vdc to 340Vdc

1.9

Maximum input current of PV module

17A

1.10

Photovoltaic module reverse pole protection

Wrong input polarity, no damage

1.11

Photovoltaic module input insurance

Positive and negative insurance

1.12

PV maximum input voltage

450Vdc (Power supply not be damaged)

2. Output characteristics

ON.

Project

Technical parameter

Remarks

2.1

Rectifier output voltage range

-43.2Vdc~ -57.6Vdc(typical value-53.5Vdc)

2.2

Recfier output maximum power

18kW

2.3

PV output voltage range

-42Vdc~ -58Vdc (typical value-54.5Vdc)

2.4

Voltage stabilization accuracy

≤±1%

2.5

Output ripple & noise

≤200mVp-p

Rated input voltage and load and bandwidth limit of 20 MHz

2.6

Current-sharing imbalance

≤±5%

Within the 50- -100% load range

2.7

Rectifier module efficiency

≥93%

220 Vac / rated load

2.8

PV module efficiency

≥95% 

@340/40%～70% Load -54.5Vdc

2.9

Startup time

3～10S

The rated input voltage starts to the output voltage establishes to the setting value, the starting output needs to use the pre-flow limit function

2.10

On/off overshoot amplitude

≤±5%

When either module is hot plugged (the load current should not be greater than the total output current in the working module), the system output voltage fluctuates

2.11

Dynamic response

Overshoot range

≤±5%

25% -50% -25% or 50% -75% -50% load change

Recovery time

≤200µS

2.12

Temperature coefficient

≤±0.02%/℃

2.13

Psophometrically weighted noise voltage

≤2mV

2.14

Wide-band noise   voltage

3.4～150KHz

≤50mV

0.15～30M Hz

≤20mV

2.15

Discrete noise voltage

3.4～150KHz

≤5mV

15～200KHz

≤3mV

20～500KHz

≤2mV

0.5～30M Hz

≤1mV

2.16

Voltage drop

≤500mV

3. Protection characteristics

ON.

Project

Technical parameter

Remarks

3.1

AC input overvoltage protection

300Vdc

Can self-recovery, the difference of not less than 10 Vac

3.2

Photovoltaic input overvoltage protection

430Vdc

Can self-recovery, the difference of not less than 15 Vac

3.3

AC input undervoltage protection

85Vdc

Can self-recover with a return difference of not less than 5 Vac

3.4

Photovoltaic input undervoltage protection

110Vdc

Can self-recovery, the difference of not less than 40 Vac

3.5

Recfier output overvoltage protection

-59Vdc～-61Vdc

Lock, can not recover, need to restart

3.6

Photovoltaic output overvoltage protection

Internal-58.5 to-60.5Vdc, external: 63Vdc

Lock, can not recover, need to restart

3.7

Output undervoltage protection

Battery disconnect protection

Through monitoring, the battery can be powered down, and the protection point can be set

3.8

Output limit protection

Have

3.9

Output short circuit protection

Have

Long-term short circuit, can recover from itself

3.10

Overtemperature protection

It can recover automatically at the ambient temperature of 75℃

3.11

Battery polarity is connected to reverse protection

Not have

According to the user needs can have the battery polarity reverse connection protection function

3.12

PV underpower protection

 Input power <50W and shutdown for 5 minutes

The module starts when the input voltage is greater than 160 Vdc for 5 minutes.