XPZW Intelligent LV integrated power distribution box

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Product Description:

XPZW Intelligent LV integrated power distribution box

1. Application and Characteristics
LV Intelligent Distribution Box of XPZW type is an integrateddistribution box with distribution and reactive power compensation, which canbe installed with transformers on the same pole or mounted on lines poles andwalls, etc. By selecting the appropriate capacity, the low voltage intelligentpower distribution box may keep power factor at load feed point at an optimallevel.

Lowvoltage intelligent distribution box of XPZW type uses distribution intelligentmonitor terminal as the control core, this intelligent monitor terminal ispowered by full digitalization design, communication sampling, man-machine interface128 * 64 dots large-screen LCD display, all-metal enclosure design, to effectivelyimprove the electromagnetic compatibility indicators, the installation with embedded/ wall-mounted series installation method meets the DIN standard, themotherboard uses AMT surface mount technology equipment which consists of distributionmonitor,  reactive power compensation,harmonic analysis, event logging, energy metering, I/0 interface, temperaturesensor interface. The device provides RS232/485 serial port 1 and RS-485 serialport 2, serial port 2 is a data forwarding port which mainly supports formulti-function electronic watt-hour meter data forwarding. Serial port 1communication method supports twisted pair, coaxial cable, data radio, GPRS, andalso can use light to communicate with the MODEM and fiber.


   MeasuringmodeAC sampling
   Measuring voltage59V280V
   Measuring current05V
   Measuring power factorlag0.200~ lead 0.200
   Measuring harmonicFrequencyspectrum display
   Measurement of active power0999.9Kw
   Measurement of reactive power0999.9Kavr
   Measuring electric degree of active power09999999.9Kw/H
   Measuring electric degree of reactive power 09999999.9Kavr/H

3. Functional description

Thedevice can record once at 15 minutes intervals, and save 90 days historicaldata. Recording density of 15-minute, 30 minutes, 45 minutes, 60 minutes areoptional.

4. Switching control guideline
Controller takes "#" control criteria, the top and bottom limitationsof voltage on each phase and reactive power can be set by users.
1) Voltage between UL and UH, the controller is in auto-switching state. (UL setsundervoltage threshold for users,  UH setsovervoltage threshold for users).
2) It is locked while voltage is below UL, which can not be switched without reactivepower; and it can be released when the voltage is greater than UL, and back to auto-switchingstate.
3) Closed and locked when the voltage is higher than UH, without reactive powerno switching; be released when the voltage is fall back to (UH-6) and return toautomatic switching state
4) Under auto-switching state, the controller measures load reactive power, ifthe value is greater than set value, then the capacitor starts; if the capacitivereactive power is greater than the value for switch off, then the capacitor is off.

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Q:which of the followingf organintions would maintain records of tested electrical equipment?
a. underwriters laboratories
Q:Van or Truck for DJ business?
Van. Better security and if you get caught in the rain, better protection of the electrical equipment.
Q:electrical outlets in a house maintain a steady voltage, even when the amount of resistance on them changes.?
Not an absolutely true statement. Even if the Voltage that feeds a house is well regulated at the input to the line that feeds the house there is still a Voltage drop across the resistance of the feeder line that varies with total house load current. Of course this Voltage drop subtracts from the no load Voltage present at the outlets. This is normally not a problem because most all home electrical equipment is designed to operate properly over the range of Voltage variations caused by normal load variations.
Q:Can I learn Electrical Engineering casually?
Although it is not so popular these days, a while ago there were a lot of Amateur Radio Enthusiasts, most of whom were not professional Radio, Electronics or Electrical Engineers. To get their Amateur Radio licences, they had (and may still have) to pass a fairly demanding set of tests covering technical aspects of electrical, electronic, and radio engineering; . as well as a significant range of Statutory Regulations governing the legal implications of using radio communication equipment, and some aspects of practical use of such equipment. Some Amateur Radio enthusiasts whose ordinary day-jobs were nothing whatsoever to do with electrical, electronic, or radio engineering: (e.g. plumbers; builders; primary school teachers; etc.) were ACTUALLY just as technically AND practically competent in their knowledge of electrical, electronic and radio engineering as many full time professional engineers; . and they often had much more practical experience and practical ability than a typical newly qualified engineer. Much of what is considered to be important in electrical engineering was discovered by Michael Faraday, who was himself essentially an enthusiastic amateur with little formal education, and few people around who could teach him anything about the newly emerging field of electrical engineering. Faraday is still considered to be one of the most influential figures in Electrical Engineering, and he was almost entirely self-taught in his field of study. If Faraday could do it then, so could you (or almost anyone else) now, if you put your mind to it. You would however, be severely restricted in the electrical work that you would be allowed to do (e.g. even just for friends) unless you became qualified in such things as electrical installation, which is governed by many strict regulations.
Q:Is it safe to use a 75 watt bulb on a 60 watt lamp?
As they say in third world countries, no bueno. Dont jerry rig stuff and you wont burn down your pueblo.
Q:does an electrical engineer operates on steam turbine or jet engine (or helps in its design)?
Electrical engineers would be primarily interested in the driven equipment namely the generators. They might be involved to a slight degree in the design of engines and turbines but not to the extent that a mechanical engineer would.
Q:When is my electrical equipment really off?
When you turn off modern Tvs from the remote, it will go to standby mode, there's still electricity on the circuit enough for the memory to remember your settings, like volume, time, the channel you've last watch before turning it off. When you turn off the switch from the wall or unplugging it, the Tv is now completely disconnected from the power source. You may loose personal settings, and when you plug it back on then it may function in the default settings. Leaving it plugged has advantages but surge, lighting, sudden voltage changes may damage it. So when you'll be out for days then unplug it from the AC outlet to play safe.
Q:what type of engineers design military equipment?
Well depend on the equipment. A mechanical equiment, by a mechanical engineer An electrical equipment, by an electrical engineer A transportation equipment, by mechanical, automotive, civil, topography, etc. engineer. Some weapons, chemical engineer, aerospacial engineer, civil engineer, topography and physics. Softwarewellsoftware engineer and stuff. The basecivil and structural engineer of course
Q:Electrodes are found in electrochemsistry, not in a generator?
According to Wikipedia: An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). There is an example of an electrode used in generators, and all industrial/commercial electrical systems. It is called a grounding electrode. It is a metallic rod that is driven deep in to the dirt, to establish a contact with the background Earth voltage. Is the dirt a nonmetallic part of the circuit? Well, dirt often does contain metals in it, but it isn't dominantly metal, so it still is considered non-metallic. And we normally hope that the dirt isn't part of the circuit, but there is a chance that it can become part of the circuit, and that is generally why grounding electrodes are installed. The grounding electrode doesn't really play an active role in the operation of any of the electrical equipment. It is more of a safety feature, as a JUST IN CASE the insulation on the live wire fails. Suppose the live wire insulation fails, and the live wire contacts the metal structure of a device (that isn't intended to play an electrical role), and you as a human victim touch that metal structure. You are also standing on the ground, and the natural path of electric current from the metal structure to the ground is through your body. Unless of course, a better path is established in advance. And that is what a grounding electrode, and the rest of the grounding system does. It establishes electrical continuity with all metals that aren't intended to be electrically involved, so that any failure of the live wire will trip the circuit breaker before there is a chance that the human gets injured.
Q:what can be the factors causes facility ineficiency, especialy electrical section ?
It almost sounds as though you are asking about a manufacturing plant, so I will answer from that standpoint, This could be an Extremely long list, but I will limit it to major causes. lack of organization, both in personnel and materials inexperience improper equipment/under equipped lack of knowledge outside factors such as shipping/receiving

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