PV Array Combiner Box ( Monitor current as far as input array and display the value by RS485)

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In large PV system feeded in gridm, it is necessary to set a PV combiner box

between PV module and inverter for the purpose of lessening connecting wires

between PV modules and inverters, easy maintainance, enhancing reliablitity.

Exclusive Features

- Applicable to both indoor and outdoor.

- Numerous PV arrays could be connected in synchronously with fuse at each

circuit.

- With specialized voltage arrester for PV. And both positive and negative pole

have function of lightning protection.

- Use four-pole breaker series connected by postitive and negative pole

separately to enhance DC withstanding voltage value.

- Monitor current as far as input array and display the value by RS485.

- Monitor voltage after combination, and display the value by RS485.

Q: Is the GIS in the electric power high voltage switch cabinet: High voltage electrical (mainly above 35kV) exposed to the air, common substation circuit breaker, isolating switch, bus, phases, equipment, and equipment between between and so must have a relatively large safety distance. This area is relatively large, but also exposed to the outside of the security risks are more. GIS is a kind of technology, the bus CircuitBreakers isolating switch for high-voltage electric appliances shell pack, seal filled with six sulfur hexafluoride gas, according to the elements of seal, not a whole big box, such as every bus from the outside is a large cylinder etc.. This equipment can be very compact layout, and a sealed shell, but also more secure.High voltage switchgear is only a device installed in a cabinet, and this is generally high voltage 10kV, up to 35kV, and then there is no general high switch cabinet this form. Of course, you can also use GIS technology. But generally speaking, GIS is more than 110kV GIS switch station.You can Baidu image search GIS switch station". You can see that the big cylinder together is the GIS switch equipment, large cylinder which is the bus, circuit breakers and other equipment, see pictures more intuitive.

Q: The production and transportation process of electric power: The transmission voltage is the main symbol of the development level of transmission technology. By 1990s, the world's commonly used transmission voltage of 220 thousand volts and above high voltage transmission of 330 to 765 thousand volts EHV transmission, more than 1 million volts and UHV transmission. In power system, the power plant will naturally change the primary energy into electricity, and send electricity to power users far away, in order to reduce the power loss of transmission line and line impedance, voltage should be increased; in order to meet the needs of power users safe, and will reduce the voltage, and assigned to each user, this we need to raise and lower the voltage, and can change the distribution of electric power. So the substation and distribution of electric power electrical device through its transform voltage, electric power system, it is a link between power plant and power users, and through each substation voltage level of the grid connected substation function is to transform voltage, transmission and distribution of power. Substation is composed of power transformer, power distribution equipment, two system and necessary auxiliary equipment.

Q: Electric power automation equipment: Construction and transformation of rural power grids, power plants, power plants, environmental protection, automatic control and integrated automation of nuclear power plants, technical management, etc..

Q: The problem of electric power equipment withstand voltageWhy does the pressure decrease when the altitude is high? The air is thin, is not easy to breakdown (vacuum breakdown is not very low atmospheric pressure): Although the degree of vacuum is higher than that of the low altitude, the relationship between the insulation strength and the degree of vacuum, especially from the atmosphere to the beginning of the high vacuum. Insulation strength is high - low - high change process

Q: In the communication and power equipment in the data access to a "remote message quantity" concept, then what is called "remote information", how to define it? Thank you: General electric power on the four remote, remote, telemetry, remote control, remote control, and now there is more than one remote viewing. Remote signal is generally refers to the opening and closing state of each switch, remote measurement is the voltage, current, temperature, etc..

Q: Hello, I would like to ask what are the main rotating equipment in the power system? What is a rotating device?: The transformer is non rotating equipment. There are a lot of rotating equipment in power plants, such as fans, fans and so on, of course, the most important is the generator

Q: Withstand voltage test, power equipment insulation unqualified reasons?: Without proper consideration of the atmospheric conditions that affect the insulation characteristics. Because of the pressure, temperature and humidity have a certain impact on the spark discharge voltage and breakdown voltage, without considering these factors may lead to equipment failure.

Q: Definition of power equipment defects: General defectIn the short term will not be reduced to major defects, emergency defects, although the impact of the operation but can still operate.

Q: The cost calculation of power equipment: Fault and professional people to do the cost of fault handling and so on, there is no fixed standard, depending on the site

Q: Ask the expert about the design of the power system diagram, 6kV side of the electrical equipment how to supply: 6kV equipment directly in the 6kV bus out of the lead, do not consider the capacity, it does not affect the use of 380V equipment

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