Product Details

BEDFORD chinese inverter

Place of Origin Guangdong, China
Brand Name BEDFORD
Model Number B503SL
Output Power Other, 0.75KW ~ 55 KW
Output Type Other, single / triple
Size depend on size
Weight depend on size
Input Voltage 220V / 380V ,1ph / 3ph
Output Voltage 3ac 220V / 3ac 380V
Type Other, dc-ac
Output Frequency 0~ 400Hz
Output Current depend on size

Product Features

1. Product Description

This product is specially desgined  for solar pv pumping system and aiming at environmental protection and economical market, no need battery and extral maintenance. Based on the core control arithmetic(DSP) of B503 vector control inverters, combined with the control requirements of PV water pump application. The function of MPPT,Sleep Mode, Multiple Water Level Control and other control protection functions can ensure normal operation of water pumps .According to the customers’ requirements , it can  switch to the power grid/AC supply.

 

2. Characteristics

DC/AC Input Compatible DC: Solar PV Power Supply AC: Dissel Generator or Power Grid Supply

No Need Battery

Environment-Friendly, Economical, No need additional maintenance

 

Optimized MPPT Arithmetic, DSP(Digital Signal Processor),Accuracy Reached 99% and above.

Multi-Water-level Control

Low Water Level,High Water Level Control, Water-Level Detecting Judgement.

Abundant Protection Functions

Featured with Protection Functions of Lightning-proof, Over-voltage,Over-current, Over-load,etc.

 

Sleep Mode

Automatically sleep in poor light , Automatically awake in bright light, unattended operation

 

3.Schematic Map

BEDFORD chinese inverter

 

4.Power supply

BEDFORD chinese inverter

5.Solar Cell Array and AC Power Supply

BEDFORD chinese inverter

 

Note: if there is no protection diode connected to the end of the photovoltaic DC input, it is forbidden to close the switches (Q1 and Q2) at the same time, otherwise, it will damage the module of photovoltaic cell

The notes below should be considered for the AC debug

1.      Power On Sequencing:Firstly open Q2 ,and then close Q1;

notice:

(1) If there is no protection diode connected to the port of input-bus, it is forbidden to close photovoltaic cell switch “Q1” and input switch of power grid “Q2” at the same time, otherwise it will damage the module of photovoltaic cell

 

(2) When need to transform the power supply mode from power frequency to photovoltaic cell; you only need to turn off “Q1”firstly and then close “Q2”.

 

6.Selection Guide

1)Output 3AC 380V                                                          

Model    No.

  

Rated    Output Power

  

Rated Input Current

  

Rated Output Current

  

Motor    Power (KW)

  

Size

  

Output 3AC    380V

  

B503SL-4001

  

0.75

  

3.4

  

2.5

  

0.75

  

B

  

B503SL-4002

  

1.5

  

5.0

  

3.7

  

1.5

  

B

  

B503SL-4003

  

2.2

  

5.8

  

5

  

2.2

  

B

  

B503SL-4005

  

4.0

  

10

  

9

  

4.0

  

C

  

B503SL-4007

  

5.5

  

15

  

13

  

5.5

  

C

  

B503SL-4010

  

7.5

  

20

  

17

  

7.5

  

D

  

B503SL-4015

  

11

  

26

  

25

  

11

  

D

  

B503SL-4020

  

15

  

35

  

32

  

15

  

D

  

B503SL-4025

  

18.5

  

38

  

37

  

18.5

  

E

  

B503SL-4030

  

22

  

46

  

45

  

22

  

E

  

B503SL-4040

  

30

  

62

  

60

  

30

  

E

  

Please contact our company for other specification.

2)Output  3AC 220V

                                                                                                                                                                                                                                                                                                                                                

Model    No.

  

Rated    Output Power(KW)

  

Rated    Input Current(A)

  

Rated Output Current(A)

  

Motor    Power (KW)

  

Size

  

Output 3AC    220V

  

 

  

B503SL-2001

  

0.75

  

5.0

  

4.5

  

0.75

  

A

  

B503SL-2002

  

1.5

  

7.7

  

7

  

1.5

  

B

  

B503SL-2003

  

2.2

  

11.0

  

10

  

2.2

  

B

  

B503SL-2005

  

3.7

  

17.0

  

16

  

3.7

  

C

  

B503SL-2007

  

5.5

  

21.0

  

20

  

5.5

  

C

  

B503SL-2010

  

7.5

  

31.0

  

30

  

7.5

  

D

  

B503SL-2015

  

11.0

  

43.0

  

42

  

11.0

  

E

  

B503SL-2020

  

15

  

56.0

  

55

  

15.0

  

E

  

B503SL-2025

  

18.5

  

71.0

  

70

  

18.5

  

E

  

 

Please contact company for other specification

7.simple introduction of factory.

BEDFORD chinese inverterBEDFORD chinese inverter

                                              

                                         

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