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The current imbalance, see the information monitoring module, 1.3A module and current, and the clamp type table card under the battery load current, see Holzer 's are not allowed, no output voltage clamp meter, Holzer scale to see how much is MV, can be converted into the hypothesis correctly, that the question in the module I guess, you have a floating voltage module, the fault code E31s
According to the national standard GB50054, the grounding type of low-voltage power supply and distribution system has TN system (three systems inside), TT system and IT system.At present, the general building adopts the TN - C - S system, and the N line and the PE line are connected.s
Clamp meter with digital display and pointer display, measuring about estimated range of the measured current, pay attention to the selection of range clamp meter, try to choose the appropriate range to reduce the error. In addition to the wire clamp in the middle of the jaw clamp meter, if the measured current is too small, can take the form of a plurality of winding wires, and then measure the value by the number of roots, but also take care not to measure the bare wire, so as to avoid the risk of electric shock. If we can measure the voltage clamp and other functions of the table, when measuring the current to pull out test. Furthermore, in the three-phase load, the line of the jaw clamp measures the current of the wire, and the two measuring current is the third. When measuring the current voltage clamp meter should note 1, the measured line is lower than the rated voltage of the current clamp meter; 2, measurement of high voltage transmission lines, to wear insulated gloves, wear insulated shoes, stood on the insulating pad; 3, to close not charged for jaw closing range; 4, in the measurement of resistance before the tested circuit must be completely discharged, and completely isolated from the power supply circuit; 5, if the test pen or power adapter to replace the damaged power, must have the same model and the same electrical specification test pen and power adapter; 6, the electric energy consumption as the battery indicator instructions, do not use instruments. If you don't use it for long time, remove the battery after storage; 7, not in high temperature, high humidity, flammable and explosive and electromagnetic field to store or use clamp meter; 8, please use a damp cloth or cleaner clamp meter shell, do not use friction or solvent; 9, the instrument when wet please, drying and storage.s
From the description, use clamp meter measuring data, current transformer current is one or two times of the only current meter measurement problem, 2.3A measurement 140A, too bad, or find the reason from the table on the right, if you can put photos come to look at the tables
Power = voltage multiplied by the current.Current voltage = power divided byThe voltage you use is 220VDivided by 220 by 8000= is the current of this powerIf it is a mechanical meter, there is no problem, if it is an electronic plug-in meter, it can nots
This kind of table has simple structure, shock resistance, multifunction and cheap price. In choosing, mainly consider the sensitivity and range. Brand words like Fluke, VICTOR's victory, UNI-T, Xin Ling CLIN, Huayi MASTECH, HIOKI - these are good, are on the list of top ten brands of China network to buy the ten brands list, is a recognized brand, you can choose from.s
Kit; high voltage electroscope, low voltage test pencil; nose pliers, diagonal pliers, pliers, stripping pliers, small crimping pliers; 6 inch, 8 inch, 12 inch wrench, six angle wrench, a 8-19 wrench set, 8-19 wrench set, 32 sets of a screw sleeve; a large, medium and small trumpet cross screwdriver, screwdriver set a special instrument (now a lot of terminals to be used);s
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