04-05-2017, 07:30 PM
Please give information about the annunciator working principle.
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annunciator working principle
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Please give information about the annunciator working principle.
05-05-2017, 09:47 AM
A warning panel, also known in some aircraft as the Centralized Warning Panel (CWP), is a group of lights used as a central indicator of equipment or system status in an aircraft, industrial process, construction or other installation. The annunciator panel generally includes a main warning lamp or an acoustic signal to draw the attention of the operating personnel to the event annunciator panel or abnormal conditions.
Today, a significant part of the electrical and electronic industry has changed the industrial automation system. In the electrical system, all the time attention is given to processes and plants are very essential, regardless of voltage levels. In electrical and electronic systems, the word Annunciator literally means the device that announces the setbacks or unusual activities, coming from the system or process associated with it.
It is basically a visual audio warning system, which highlights the fault or mishap that is going on, or even before it happens. This is very necessary for the safety concern as well, and sometimes the warning comes before an improper procedure that warns the operator to avoid unwanted accidents etc. This is the basic concept of alarm annunciator, and alarm system alarm . Let's look at the operation of a typical alarm warning device.
Alarm Announce System
In order to understand the fundamental operation and alarm annunciator connections, we need to understand the basic concept of alarm system in the process tracking. Suppose an electromagnetic coil is energized by the power supply and acts as an electromagnet for some application. Now, due to the over voltage a portion of the coil has been burnt. As a consequence, the whole process associated with it is hampered. Therefore, in finding the very cause of this mishap, you have to check each part of the system in order to find and acknowledge the true fault. Now think you have 50 reels, you have to watch. In this case finding the actual defective coil becomes very difficult and consumes too much time.
But if you connect a bulb in series with the power supply of each coil, it lights up if and only if the coil is energized and healed. In this way for 50 such electromagnetic coils you need to use 50 bulbs each connected in series with each of the individual coil through which you can monitor the processes by displaying the brightness status of the bulbs. This is the basic and easiest model of process monitoring. The alarm annunciator is a centralized model, which provides audiovisual signals for faulty processes. The latest models of annunciators are based on microprocessor or microcontroller circuits, which guarantees maximum reliability as well as wide extended ranges of features and functionalities.
Today, a significant part of the electrical and electronic industry has changed the industrial automation system. In the electrical system, all the time attention is given to processes and plants are very essential, regardless of voltage levels. In electrical and electronic systems, the word Annunciator literally means the device that announces the setbacks or unusual activities, coming from the system or process associated with it.
It is basically a visual audio warning system, which highlights the fault or mishap that is going on, or even before it happens. This is very necessary for the safety concern as well, and sometimes the warning comes before an improper procedure that warns the operator to avoid unwanted accidents etc. This is the basic concept of alarm annunciator, and alarm system alarm . Let's look at the operation of a typical alarm warning device.
Alarm Announce System
In order to understand the fundamental operation and alarm annunciator connections, we need to understand the basic concept of alarm system in the process tracking. Suppose an electromagnetic coil is energized by the power supply and acts as an electromagnet for some application. Now, due to the over voltage a portion of the coil has been burnt. As a consequence, the whole process associated with it is hampered. Therefore, in finding the very cause of this mishap, you have to check each part of the system in order to find and acknowledge the true fault. Now think you have 50 reels, you have to watch. In this case finding the actual defective coil becomes very difficult and consumes too much time.
But if you connect a bulb in series with the power supply of each coil, it lights up if and only if the coil is energized and healed. In this way for 50 such electromagnetic coils you need to use 50 bulbs each connected in series with each of the individual coil through which you can monitor the processes by displaying the brightness status of the bulbs. This is the basic and easiest model of process monitoring. The alarm annunciator is a centralized model, which provides audiovisual signals for faulty processes. The latest models of annunciators are based on microprocessor or microcontroller circuits, which guarantees maximum reliability as well as wide extended ranges of features and functionalities.
![[Image: 1479395265.PNG]](https://www.electrical4u.com/images/september16/1479395265.PNG)
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