Wuxi Longmax Technology Co., Ltd.
5 1

Waterproof 10A Solar PV Combiner Box 1000V DC For Big Solar Power Station

Contact Now* Send an Inquiry to this supplier.
or
Start Order * Name your price

Browse by Category

Contact us

Wuxi Longmax Technology Co., Ltd.
[China]

Address
Wangzhuang Industrial Park No.1 ,Phase 2, Region 3 beijing beijing
Phone
86-510-85347588
Contact name
Brice

Quick Information

  • Brand Name: Longmax
  • Place of Origin: China
  • Model Number : LONGMAX-SCB-10 strings LM-PVA-1/10-S LM-PVA-1/10-F

Description

Waterproof 10A Solar PV Combiner Box 1000V DC For Big Solar Power Station

10 strings(10 inputs) Intelligent PV array combiner boxes with monitoring device for big solar power station

Quick Detail:

10 strings  Intelligent PV array combiner boxes with monitoring device for big solar power station.The combiner box is a device that combines the output of multiple strings of PV modules for connection to the inverter. It is typically used in the larger commercial and utility scale PV power plants. The combiner box commonly houses the input over current protection fuse assemblies for several strings (from as few as 2 strings to as many as 32), as well as the combined bus of those inputs into a single main output.

The PV combiner box also house other components for the site, such as a DC disconnect, surge protective devices and string monitoring hardware.

Description:

SCB-Monitoring Device SCBM4A,SCBM8A, SCBM12A ,SCBM16A is specially applied to intelligent PV combiner box. It can monitor the operating status of the solar system, measure the current and voltage of solar panels, collect the SPD (Surge Protective Device) status and the DC breaker status and control relay output for driving external executive body. The device can display the measured data and the status of the other device via 6 digital screen. It  can also connect the industrial equipment and computer to compose the monitoring system via the RS485 interface.

Intelligent PV combiner monitoring terminal unit  is based on the Modbus-RTU communication protocol. The checksum and the data sequence which are defined by Modbus protocol are necessary for the specific data exchange. The Modbus protocol is used in a communication line which the host requested and the slave respond. That is a half duplex means of communication. First of all, the host computer sends signal to a unique slave terminal according to the address, and then the slave device response the signal to the host computer.

In a large photovoltaic (PV) grid generation system, it is generally to install a DC combining device between the PV module and inverter in order to reduce the connection between PV module and inverter, facilitate maintenance and improve reliability. Our intelligent photovoltaic combiner box with SPD series are especially designed to meet the requirement, which can provide a solution for PV power generation system matching with photovoltaic inverter. According to the input voltage of the inverter, a fixed number of similar PV modules can be connected to form a PV array by using PV array combiner box. Then different channels of PV arrays can be combined into the PV combiner box. Its output can be connected to inverter by way of circuit breakers with SPD protection.

Intelligent PV array combiner boxes with monitoring device

Key features: 

1. According to the function, it will have a standard combiner box (SAB) and an intelligent combiner box (SCB).

According to different working environment, it will have polycarbonate (PC) and steel made boxes .

2.We choose all materials strictly on quality first principle. All components comply with DIN and VDE standards, and all adhere to the highest quality standards. 
3.CE, TUV, CQC certified. 

4,Meet outdoor installation requirements, IP65 . With anti-UV, anti-acid, anti-alkali, moisture, mildew, rodents and so on functions.

5,All components meet rated voltage DC1000 V requirements. 

6.With fuses on Inputs, switches on outputs, and SPD in both poles.

7,Can monitor the current of each string, system voltage, status of circuit breaker and SPD. Can display and read the data on both local and background part. Can accurately identify the fault and its position

Specifications:

To ensure body safety and reducing the danger. Longmax solar combiner has features as below:

Meet outdoor installation requirements, the degree of protection is IP65, has the function of avoiding UV, acid and alkali, moisture, mold and rat;

2-32 strings of solar arrays can be input at the same time, each channel with 12A,1000Vdc (can be replaced to other level);

Each positive, negative string under the fuse protection;

With special high voltage PV SPD, both positive and negative pole have the function of thunder and lightning; Use photovoltaic circuit breaker;

Technical Data

Max input modules channels

2-32 strings

Input array connection diameter

4mm²

Output and ground diameter

≤70mm²(ground wire 16mm²)

Internal fuse rating

1000V dc fuse,12A

Input current of each channel

10A

Communication connection

RS485

Communication power supply requirements

Self-power

Waterproof level of the box

IP65

Enclosure Color

Optional, Multi choice

Guarantee

2-5 years(2 years standard warranty ,can be extended into 5 years)

Certification

TUV, CE, CCC

Loading port

Shanghai port  China (mainland)

The list of features

Model

SCBM16A

Application

Intelligent PV combiner box

DC voltage

1 channel  50V~1000VDC 

DC current

1~16 channel forward and reverse DC0~20A PV combiner detection, total current

DC power

1~16 channel forward and reverse power,total power

Communication

1channel RS485 communication port, MODBUS-RTU communication protocol, can be connected to the PC monitoring system.

1channel RS232 communication port, MODBUS-RTU communication protocol, can be connected to the display terminal.

Temperature measurement

1 Internal environment temperature. -55~+125℃,±2℃.(-10~+85℃,±0.5℃)

Display

6 digital tube displays. The display will be off if any operating is not existed within the 30 minutes. The display will be on with operating the key.

Digital input

2 passive dry contact input.

Maximum

Historical maximum of U, I1~I16 .The value can be cleared by remote host computer.

Running time

0~99999999.9H.The recording mode can be set to Power-on, voltage or current. The value can be cleared by remote host computer.

Parameters

setting

The following parameters can be set by remote host computer.

Lower voltage limit and higher voltage limit, higher current limit, current zero threshold. Parity bit. Delay time of alarm.(when the lasting time exceed the setting up time, the alarm will appear) The record mode of running time(1: Power-on 2:Voltage 3:Current)

The following parameters can be set by the key setting buttons.

communication address Communication Paudrate

Alarm

Red Led will be on when alarm

Size

358mm*83mm*49mm(L*W*H)

5.Technical indicators

Model

SCBM16A

Aauxiliary power

DC24V(18V-36V)

Power consumption

<5W

Communication

RS485,RS232  Modbus RTU protocol

Communication speed

1.2kbps,2.4kbps,4.8kbps,9.6kbps,19.2kbps,38.4kbps,57.4kbps

Communication parity

It can be set by remote host computer.(0:none 1:odd 2:even)

Communication medium

1.0 square shielded twisted pair, 1200 meters communication distance, the maximum number of nodes is 128.

Digital input

passive dry node

Input voltage

1channel

Voltage measuring range

50V~1000VDC

Input current channels

16channels

Input current range

-20A~20A

measurement accuracy

1 Level (FS) for voltage and current.

Operating temperature

-20℃ ~ 70℃

Storage temperature

-30℃ ~ 80℃

Rrelative humidity

5% ~ 95% Non-condensing

Reaction time

1S

Protection class

IP30

Altitude

≤3000 meter,the device for 3000 m or more need a special customization

Insulation resistance

≥100MΩ

6.Description of the initial value

SCBM16A

Initial value

Remarks

Higher voltage limit

1000V

Voltage alarm upper thresholds

Lower voltage limit

50.0V

Voltage alarm lower thresholds

Higher current limit

20.00A

Current alarm upper limit

Disconnection threshold value

0.20A

Current alarm lower limit

Communication Paudrate

9600bps

can be set to 1200bps to 115200bps

Address

1

1 to 255

parity

none

None,odd,even can be set

Running time

power-on

Can be set to power-on, voltage, and current.

Alarm delay

3S

The signal input exceeds a set threshold, the alarm rings  after 3S

7.Terminal diagram

Terminal locations as shown below:

7.1 Terminal diagram of side

SCBM16A

Instructions

Remarks

CH1 terminals

1

1000V+

50~1000V voltage sampling positive

2

1000V-

50~1000V voltage sampling negative

3

PE

RS485 signal GND

4

B

RS485 signal B

5

A

RS485 signal A

6

COM

Switch input comment

7

DIN2

Passive dry input 2

8

DIN1

Passive dry input 1

9

24V-

24V Power negative

10

24V+

24V Power positive

7.2 The state of the switch input wiring diagram

The digital input of the device is the passive node, the device itself provides power, no need extra power supply.Just connect the passive dry contact of the outside device to the input of the switch via the common node when wiring.

7.3 The current  direction

Applications:

Solar can be transformed into electricity that can be used directly or fed into the grid according to national policy. Longmax Technology is focused on developing and offering technology and products for sustainable solar energy development.

In the field of sustainable renewable photovoltaic energy, our core competencies products include:

Solar combiner boxes, AC/DC distribution cabinets/boxes, intelligent monitoring devices, portable AC/DC solar generators, multi-function power systems, environmental monitoring instruments, PV prevent reverse diodes and monitoring systems used in PV power plants.

Our history is full of firsts and our products are installed in a huge number of solar power plants all over China and the world. Till now, the total installed capacity of Longmax is over 2GW worldwide.

Our customers include entities and enterprises dedicated to the renewable energy field, solar power plants and agents/distributors around the world who are interested in the new PV industry.


Longmax Intelligent PV array combiner boxes with monitoring devices have been widely installed all over the world.

Install:

Install the Box on the wall or Photovoltaic bracket

With 4 M8*30 Stainless steel screws (screw level 8.8)

Open all fuse holder before connecting

Status of breaker:Off

Distinguish positive pole cable &negative pole cable

Connected to the Inverter

Use cross screwdriver (Tightening torque, min. 2Nm, max. 2.5Nm)

Before closed fuse holders, make sure the open circuit voltage equal to every road ,the differ is ±30VDC.

2. Each SCB cables to Inverter must be all the same, cannot appear positive, negative reversal.

3. Operation of the circuit breaker:

Components Structure

Figure 1 : Components of PV combiner box

Component

 Explanation

1

DC circuit breaker

2

DC+/DC - fuse holders and fuses(one fuse for each string)  max:12 strings

3

SPD

4

Ground output terminal

5

DC + output terminal / DC – output terminal

6

DC to DC converter

7

Intelligent Monitoring Device

Table 1: Component list

5.   Technical Data

Max input modules channels

2-16

Input array connection diameter

4mm²

Output and ground diameter

≤70mm²(ground wire 16mm²)

Internal fuse rating

1000V DC fuse, 12A

Input current of each channel

10A

Communication connection

RS485

Communication power supply requirements

Self-power

Waterproof level of the box

IP65

Net weight

Size(W×D×H)

  6.   Installation and Maintenance

Check the product to make sure whether there is a damage caused by delivery.

Although the product is carefully checked and tested before shipping, but components maybe damaged during shipping, so the product should be checked before installation. Please contact the transportation company or directly contact with Wuxi Longmax Technology Co., Ltd  if there is any component damage. Please provide the picture of damaged component, and we will provide the fastest and best service.

Basic installation requirements

The Intelligent PV array combiner boxes with monitoring device can be installed outdoor. But as it contains electronic equipment, it is required not to be installed in wet location.

Configuration of input circuit

Photovoltaic combiner box are allowed to have access2- 32 channel PV modules.

Size of terminal and connecting wire

The user can choose appropriate wires by checking different waterproof terminals shows in the table below.

 Item

Specification

Wire suggested

DC+ input

MA-20-H2-06G

4mm² PV wire

DC- input

MA-20-H2-06G

4mm² PV wire

DC+ output

MA25-16G

35~70mm² PV wire

DC- output

MA25-16G

35~70mm² PV wire

Ground

MA20-14G

16mm²

RS485

MB16SL-08G

6mm²

Table 2:  Wire suggested

Adopt standard lock to open and lock the box

This box uses the international general standard locker, its high safety performance can guarantee the sealing of box.

Input connection

Photovoltaic components input is located at the bottom of the cabinet, PV combiner box can connect 12 strings input at most. Pay attention that PV modules output of connection is located in the bottom of the box, white wire is used to access positive PV modules, black wire is used to access negative PV modules. The user needs to unscrew gland, and disconnect all fuses and let the breaker off, then access connection to fuse holder by 1.5nm screwdriver, and finally tighten all waterproof terminals.

Output connection

Combiner box output is on the left of the bottom, as can be seen from the picture output including DC positive, DC negative and ground, grounding wire is yellow green. The communication wire is also at the bottom of the box, beside the grounding wire. The user needs to unscrew gland l before wires are connected, after access output wires, then tighten the screws, and finally tighten all glands.

Picture : Input and output terminals connection

1. How to change fuse

Step 1: Operation the circuit breaker

Step 2: Open the fuse holder

Step 3: Change the fuse (he fuse replaced must be the same as the original model.)

Step 4: Close the fuse holder, switch on the circuit breaker.


Product Image

  • Waterproof 10A Solar PV Combiner Box 1000V DC For Big Solar Power Station image

Send an Inquiry to this supplier

Send an Inquiry to this supplier
* From
  To Brice
Wuxi Longmax Technology Co., Ltd.
* Buying Product
- Please enter your specific buying item.
e.g. 42 inch LCD TV, leather executive chair
Category : Electronic & Instrument Enclosures
* Message

Use English only Max. 2000 characters. (Min. 20)

Send
EC21.com does not guarantee the validity of product information or the credentials of sellers.