WZ-3C digital transient tachometer

NegotiableUpdate on 05/15

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Nature of the Manufacturer: Producers

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Place of Origin

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Overview

The WZ-3C digital transient tachometer is widely used in large and medium-sized thermal power plants and steam turbines. During the start-up process of the steam turbine, it plays multiple roles such as speed monitoring and measurement, overspeed protection and alarm, parameter setting and storage, as well as connection and communication with other equipment. These functions collectively ensure the safe operation and stable performance of the steam turbine during the start-up process.

Product Details

WZ-3C digitalTransient tachometer is widely used in large and medium-sized thermal power plants and steam turbines

During the start-up process of the steam turbine, the tachometerWZ-3CIt played a crucial role. The following is an analysis of its specific function:

1、 Speed monitoring and measurement

tachometerWZ-3CCapable of real-time and accurate monitoring and measurement of the speed of the steam turbine. Accurate measurement of rotational speed is crucial for ensuring the safe operation of the turbine during start-up.WZ-3CThe tachometer processes signals through a microprocessor chip, achieving high-precision speed measurement with a wide measurement range and minimal measurement error.

WZ-3C数字瞬态转速表

2、 Overspeed protection and alarm

Alarm function: When the turbine speed exceeds the preset alarm value,WZ-3CThe tachometer will immediately trigger an alarm mechanism. The alarm indicator light on the front panel will light up and output a switch signal on the back panel to remind the operator to pay attention and take corresponding measures. This feature helps to detect and handle speeding situations in a timely manner, preventing the situation from worsening further.

Protecting monitored devices: through the overspeed alarm function,WZ-3CThe tachometer can protect the monitored turbine equipment from damage caused by overspeed. Overspeed is one of the common dangerous situations in the operation of steam turbines, which may lead to equipment damage or even catastrophic consequences. Therefore, the overspeed protection function is of great significance in ensuring the safe operation of the steam turbine.

3、 Parameter Setting and Storage

Parameter settings:WZ-3CThe tachometer allows operators to set parameters such as alarm values, number of teeth, and time through the buttons on the front panel. The flexible setting of these parameters enables the tachometer to adapt to the operational requirements of different steam turbines, improving the accuracy and practicality of measurements.

Storage function: The tachometer also has a storage function for overspeed events for future reference. This function helps operators review and analyze abnormal situations during the operation of the steam turbine, providing data support for subsequent maintenance and optimization.

4、 Connection and communication with other devices

WZ-3CThe tachometer is equipped with voltage and current output interfaces, andRS-485orRS-232Communication interface, capable of connecting with computersDCS(Distributed Control System)PLCConnect devices such as programmable logic controllers, paperless recorders, etc. This feature enables the tachometer to be easily integrated into automation systems, enabling remote data transmission and centralized management. During the start-up process of the steam turbine, operators can monitor the speed data in real time through these interfaces and perform remote control and adjustment as needed.

In summary, the tachometerWZ-3CDuring the start-up process of the steam turbine, it plays multiple roles such as speed monitoring and measurement, overspeed protection and alarm, parameter setting and storage, as well as connection and communication with other equipment. These functions collectively ensure the safe operation and stable performance of the steam turbine during the start-up process. soWZ-3C digitalTransient tachometers are widely used in large and medium-sized thermal power plants and steam turbines.

WZ-3C数字瞬态转速表

5、 Electrical indicators:

External power supply:220VAC±10% 50HZ

Input signal: Reluctance speed sensor or Hall speed sensor

Waveform: sine wave or pulse

Amplitude:50mV-20VAC(Effective value)

Range:1-99999 rpm

Display mode: Five digits0.8inchLEDdigital display

Display accuracy: ±1 rpm（1-10000rpmScope)

±10 rpm（10000-99999rpmScope)

photoelectric tubeLEDIndication: On site operation status of the machine

齿数：1-255tooth