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: 1 what is the power system and the power network? 2 what is the rated voltage of the electrical equipment? Why do the power system to use a variety of voltage levels? 3: The electric power network is referred to as the "power grid", which refers to the connection between the bus from the booster station of the power plant to the bus of the substation.

Q: When a fault occurs in power system, the circuit breaker tripping device near fault: When a fault occurs in power system, the circuit breaker tripping device near the fault, in order to reduce the power outage, this is the relay protection ().A, selective B, reliability C, sensitivity D, non selectivity

Q: We are a manufacturer of intelligent switching equipment manufacturers to bid in the power grid to say what is the first access to what the Department: State Grid procurement requirements to provide information: network card requirements are not standardized,For the national grid access card: 1, please hold valid company documents to the local GRID (NATION) business hall, consulting

Q: I would like to set up a power engineering Co., Ltd., do not need to know what the scope of business: Do not need to be able to do anything! Or you can hang on to someone else's qualifications!

Q: What is the amount of equipment used? Higher profits? Do you have any power generation companies in China?: If the grid equipment. There is a device: power transformers, switches, knife gate, bus, GIS, HGIS, voltage transformers, current transformers, high resistance, lightning arrester, bare wire, line hardware, insulators, towers, power cables, etc.

Q: What are the effects of frequency variation on power users and power systems?: Influence of frequency variation on power users and power systems:There is a close relationship between the frequency of power equipment and the operation of power system

Q: Is there a warranty period for power equipment?: Now there is no, you can view the relevant national standards for electrical equipment standards, as well as high and low voltage equipment test manual. Online search, easy to get.

Q: Definition of power equipment defects: An abnormal or hidden danger of the equipment or facilities that are in operation or spare. These anomalies or hidden dangers will affect the human body, power grid and equipment safetyReliable and economical operation of the power grid and equipment; equipment output or life; power quality.

Q: Rivers and lakes emergency, there is a 110kV and 10kV power supply line works, I would like to ask this kind of power project warranty items, scope, life and other detailed provisions where can be found? Are there relevant regulations? For example, if the provisions of the housing construction warranty, you can check the "construction quality management regulations," but the warranty content of power projects, what information should be checked? Note that the warranty is not repair. Waiting for good people reply, satisfaction and then points.: According to the "construction quality management regulations," the fortieth: the scope of the warranty and its normal use of the corresponding minimum warranty period of 2 years.

Q: Ask the expert about the design of the power system diagram, 6kV side of the electrical equipment how to supply: For 35/6KV step-down stationEach line with the 6/0.4KV transformer, or 6KV equipment (such as 6KV synchronous motor), are the load of the stationSo, there are 6KV devices, single occupancy 6KV bus on a certain line can be

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