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The ** of electronic current transformers is about one or two thousand yuan per unit. Different types of electronic current transformers** are also different. In terms of category, according to the national standard GB, electronic current transformers can be divided into the following two categories.
1) Electronic current transformer for measurement. During the normal operation of the power system, the current conversion of the corresponding circuit is supplied to the electronic current transformer of the measuring instrument, the integration instrument and similar devices. (2) Electronic current transformer for protection.
In the abnormal operation and fault state of the power system, the current conversion of the corresponding circuit is supplied to the electronic current transformer of the relay protection and control device. If you want to know more about electronic current transformers, you can consult Lufeng (Shanghai) Precision Machinery****, thank you!
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It should be called a current transformer.
200 5 means that this transformer can measure power frequency alternating current below 200A.
When the current of the circuit under test reaches 200A, its secondary coil current is 5A. Select an AC ammeter with a range greater than or equal to 200A. If you have a watt-hour meter, multiply the reading by 40 when calculating the energy.
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It means that when the rated passing current of the primary line is 200A, the output current of the secondary side is 5A, and the multiple of the current transformation ratio: 200 5=40 times.
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How do you calculate electricity for 200 5 current transformer?
Dear, for you to find out: 200 5 current transformer calculation method: 200 transformer calculation method is as follows:
The current of the electric energy meter measured by the transformer is generally 5A, and the 200 transformer is actually the 200:5 current transformer. Its ratio is 40, that is, the billing rate is 40 times, that is, the meter shows 1 degree, the actual electricity consumption is 40 degrees, this is the main circuit directly through the transformer, that is, through the transformer is 1 turn of the calculation method, if through the transformer is 2 turns, then the above 40 also needs to be divided by 2, that is, the billing rate is 20 times.
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The current transformer 100 5 is a device with a maximum primary current of 100A and can be changed to a maximum of 5A according to the proportion. The change ratio between the first and second times is (100 5) 20 times, so in actual use, the measured value is multiplied by the magnification rate (20 times), which is the actual current value.
The current transformer is an instrument that converts the large current on the primary side into a small current on the secondary side according to the principle of electromagnetic induction. A current transformer is made up of a closed core and windings. It has a small number of turns on the primary side winding and is strung in the line where the current needs to be measured.
Therefore, it often has all the current of the line flowing, the number of turns of the secondary side winding is more, it is connected in series in the measuring instrument and the protection loop, when the current transformer is working, its secondary side loop is always closed, so the impedance of the series coil of the measuring instrument and the protection loop is very small, and the working state of the current transformer is close to short circuit. The current transformer converts the large current on the primary side into a small current on the secondary side for measurement, and the secondary side cannot be opened.
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500 5-finger transformer wears a turn, and the magnification is 100
The rate is the primary and secondary repentance of the transformer, which refers to the high current into a small current through the transformer, and the high voltage before the high voltage becomes low voltage, for control, measurement, and protection, such as the current transformer 500 5, then their rate is relatively 500 5 = 100, and the actual amount of electricity used = calculate the power of the meter x the rate of the transformer.
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Summary. Hello, according to the understanding, the transformer is a kind of electrical transformer, which is mainly used to convert the current or voltage. 400 6 is the rated ratio of the transformer, which means that the transformer converts 400 amps in the input circuit to 6 amps in the output circuit (or 400 volts in the input circuit to 6 volts in the output circuit).
This number is also commonly referred to as the "transformation ratio" or "transformation ratio" of the transformer. Taking the current transformer as an example, if the secondary stage of the transformer is connected to the ammeter, when there is a current of 400A on the main line passing through the transformer, the transformer transforms the current to 6A and transmits it to the ammeter. Therefore, the ammeter reading should be directly multiplied by the ratio of the transformer to get the actual current value on the main line before passing through the transformer.
What does 400 6 mean on a transformer.
Hello, according to the understanding, the transformer is a kind of electrical transformer, which is mainly used to convert the current or voltage. 400 6 is the ratio of the transformer, which means that the transformer converts the 400 amperes in the input circuit into 6 amps in the output circuit (or converts the 400 volts in the input circuit into 6 volts in the output circuit). This number is also commonly referred to as the "transformation ratio" or "transformation ratio" of the transformer.
Taking the current transformer as an example, if the secondary stage of the transformer is connected to the ammeter, when there is a current of 400A on the main line passing through the transformer, the transformer transforms the current to 6A and transmits it to the ammeter. Therefore, the scrambled ammeter reading should be directly multiplied by the conversion ratio of the transformer to get the actual current value on the main line before passing through the transformer.
Dear, I hope the above content is helpful to you
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What does 400 6 mean on a transformer.
Hello dear, happy to answer your <>
400/6"refers to the current transformation ratio of the transformer, wherein"400"It means that the rated current of the secondary side of a banquet is 400A"6"It means that the secondary side current is 6A. In other words, if the primary current of 400A is connected to the primary side of the transformer, the secondary current with a nominal current of 6A can be obtained on the secondary side of the transformer. This kind of transformer with current conversion ratio is usually used for current measurement and protection in the power system of Jixiangbei power system.
Clause. 1. The current transformer is a special kind of transformer, and the relationship between the primary and secondary sides is exactly the same as that of the transformer. >>>More
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