Where are power transmitters used?

Hehe, to put it bluntly, a power transmitter is an electricity meter with an output.

The meter that you see is based on how much people are using, and the concept of transmission is that this value is output somewhere else in some way by a communication line in some way.

It is generally used in the power output of power plants, for example, to export the power at the gateway.

Of course, your electricity meter can also be replaced with a power transmitter, which sends the signal directly to the power supply bureau, so that they don't have to come to read the meter often.

Agree with the statement of the first floor, the electricity transmitter can completely replace the household electricity meter, but because many areas in order not to let the meter reader lose his job (in fact, the meter reader is a relative of some leaders, and they are laid off when the electricity transmitter replaces the household meter. It is said that a meter reader in Shandong Luneng is 10 tens of thousands per year), so now the power transmitter is not popular, and it is currently only used in the general power grid of institutions or enterprises.

Shaanxi Houpu Science and Technology Development specializes in the production of power transmitters. The power transmitter is a kind of power transmitter that converts the measured electric parameters (current, voltage, active power, reactive power, apparent power, active energy, reactive energy, frequency, phase, power factor and other 34 electrical parameters) into digital signals (pulse, switch, 485 communication) or analog signals (DC current 4 20mA; 0～20ma；0 10mA or voltage 0 5V; 0～10v；1 5V).

Power transmitter It is widely used in electrical measurement, automatic control and dispatching systems of electric power, petroleum, coal, metallurgy, railway, municipal and other departments. The new transmitter outputs an analogue signal current of 4 20 mA and has a wide range of applications in the transmission of data and in the control of certain actuators that are readily available to receive instructions according to this standard. It has been used as the only standard for current telemetry technology in analog signals in the world.

In a current telemetry circuit that utilizes two wires, the transmitter operating power supply is connected in series with the reading device, including the sensor operating power supply and any other resistors of the transmitting wires.

The current transmitter can directly convert the AC current of the main circuit of the test or the DC current of Wu Lupai into a DC4 20mA (DC1 5V through 250 resistance or DC2 10V through 500 resistance) constant current loop standard signal output in a linear proportional manner, and continuously transmit it to the receiving device.

A power transmitter is a measuring instrument that converts the measured amount of electricity (AC voltage, current, active power, reactive power, active energy, reactive energy, frequency, phase, power factor, DC voltage, current, etc.) into a linear proportional DC current cavity or voltage output (electric energy pulse output).

How Extended Data Composes:

The transmitter works on the principle of negative feedback, which is mainly composed of a measurement part, an amplifier and a feedback part.

The measurement part is used to detect the measured variable x and convert it into an input signal zi (voltage, current, displacement, force or torque) that can be accepted by the amplifier. The feedback part converts the output signal Y of the transmitter into the feedback signal Zf, and then sends it back to the input terminal.

The difference between ZI and the zeroed ZO signal ZO and the same feedback signal ZF is fed into the amplifier for amplification and converted into the standard output signal Y. (Photo by Du Shifan, Pacific Automobile Network).

The function of the transmitter is to detect the process parameters and transmit the measured values in the form of specific signals for display and adjustment. [6]

The function in the automatic detection and adjustment system is to convert various process parameters such as temperature, pressure, flow, liquid level, composition and other physical quantities into a unified standard signal, and then transmit it to the regulator and indication recorder for adjustment, indication and recording. [7]

Attention to selection. The selection of the transmitter is usually based on the installation conditions, environmental conditions, instrument performance, economy and application medium. In practical application, it is divided into direct measurement and indirect measurement; They are used for process measurement, process control, and device teasing interlocks.

Common transmitters include ordinary pressure transmitters, differential pressure transmitters, single flange transmitters, double flange transmitters, plug-in flange transmitters, etc.

Pressure transmitters and differential pressure transmitters measure the difference between the pressure and the two pressures in terms of noun alone, but they measure many parameters indirectly. For example, pressure transmitters, in addition to measuring pressure, can also measure the level of liquid in the equipment. When measuring the liquid level in an atmospheric vessel, a pressure transformer is required.

When measuring the liquid level of the pressurized container, two pressure transformers can be used, that is, the lower limit of the measurement is a mountain of attendants, and the upper limit of the measurement is one, and their output signals can be subtracted to measure the liquid level, and the differential pressure transmitter is generally selected. It can also be used to measure the density of the medium with the same level and pressure in the container. The measuring range of the pressure transmitter can be made very wide, from absolute pressure 0 to 100MPa (typical).

What is the purpose of a transmitter? What is the role of a monocrystalline silicon pressure transmitter?

The function of the transmitter is to convert the physical measurement signal into a standard electric signal and supply it to the secondary instrument. Any sensor that can be converted into a standard signal is called a transmitter.

The transmitter converts the different output signals of various sensors into a standard output signal of 0 10V or 4 20mA.

Housing + circuit board + sensor.

The specific material depends on the use environment, which is divided into general environment and corrosive environment, but they are all made of metal.

A sensor is a general term for a device or device that can be measured and converted into a usable output signal according to a certain law, usually consisting of a sensitive element and a conversion element. When the output of a sensor is a specified standard signal, it is called a transmitter.

1.A power transmitter is a sensor that can detect current, voltage, active power, frequency... and other power parameters.

2.The power transmitter is a meter that can accurately convert these detected power parameters, usually into DC voltage and current. These DC signals are standard signals that are easy to receive by other instruments, easy to display, and easy to receive by control devices.

3.The power transmitter is also an isolator, which can isolate the AC current or AC voltage from the field and the DC voltage or DC current output, so as to avoid the AC power signal, directly enter the back control device or instrument, and play a role in protecting these devices.

4.The power transmitter is a sensor, a meter, and an isolator. It requires the power transmitter to be accurate, stable and reliable.

At present, the most accurate and stable power transmitter products in the world include Siemens, ABB, and SST. Among them, SST3-AD current, SS3-VD voltage, SST3-WD active power and other types of power transmitters are internationally acclaimed products, with above accuracy and long-term operation.

The power transmitter is used to convert the voltage, current, power, power factor, frequency and other electrical parameters into low voltage after detection.

A device that outputs MA (4-20 mA, 0-10 mA), V (0-5 V, 1-5 V) signals to a secondary instrument or system.

It is used where electrical parameters need to be monitored.

Yunnan Hibot Technology Technology Department.

The power transmitter is to put the alternating current (voltage, current...) and 34 other electrical parameters) into an electrical measuring device for analog or digital signals.

Shaanxi Houpu specializes in power transmitters.

In the current social life and production, electricity can be said to be the most commonly used and the most indispensable basic energy. However, in the process of daily electricity consumption, there will occasionally be voltage anomalies, and at this time, we need to detect the voltage. The following is an introduction to a kind of device that is often used in the process of voltage detection - voltage transmitter.

What is a voltage transmitter?

As the name suggests, a voltage transmitter is a device that can replace the voltage and output the converted voltage at the same time. Specifically, a voltage transmitter is a device that can convert the measured AC voltage, DC voltage, and impulse voltage into DC voltage or DC current output in a linear proportional manner, and at the same time output the converted DC current or DC voltage and can isolate the analog signal or digital signal.

What are the functions of voltage transmitters?

At present, voltage transmitters are widely used in electric power, far beyond monitoring, instrumentation and other industries that need to be monitored in isolation or in various industrial voltage detection systems. So, what exactly is the function of a voltage transmitter?

1. The voltage transmitter can convert all kinds of voltages and output the converted voltage.

When the voltage is detected, the AC voltage, DC voltage or impulse voltage under normal conditions cannot be directly detected, and the directly detected voltages need to be converted into DC voltage or current that can be detected according to a certain linear proportion. The most basic function of the voltage transmitter is to convert the voltage that cannot be directly detected.

2. The voltage transmitter can well realize the isolation of analog signal or digital leakage signal.

After the voltage transmitter converts the voltage and outputs the converted voltage or current, it is inevitable that the current will interfere with each other during the detection. The isolation interference of the voltage transmitter is its most basic function, and the voltage transmitter has a strong anti-infection ability.

3. The voltage transmitter has extremely high accuracy in voltage measurement, and has the effect of anti-surge, lightning and explosion-proof.

As we all know, electric currents have the characteristics of surges, and when the voltage is detected, the surge characteristics of the current will affect the detection equipment. In order to avoid these adverse effects and improve the detection accuracy, the voltage transmitter is specially equipped with anti-surge and lightning protection devices. Therefore, the voltage transmitter has a good anti-surge, lightning and explosion-proof effect, and the measurement accuracy of the voltage transmitter is as high.