500 internal resistance and full-scale current of 1 ma. Show the way of connection with
Protection System
A system that protects electrical systems from faults by isolating the problematic part from the remainder of the system, preventing power from being cut from healthy elements, improving system dependability and efficiency is the protection system. Protection devices are the equipment that are utilized to implement the protection system.
Predictive Maintenance System
Predictive maintenance technologies are designed to assist in determining the state of in-service equipment so that maintenance can be scheduled. Predictive maintenance is the application of information; proactive maintenance approaches examine the condition of equipment and anticipate when it should maintain. The purpose of predictive maintenance is to forecast when equipment will fail (depending on a variety of parameters), then prevent the failure through routine and corrective maintenance.Condition monitoring is the continual monitoring of machines during process conditions to maintain optimal machine use, which is necessary for predictive maintenance. There are three types of condition monitoring: online, periodic, and remote. Finally, remote condition monitoring allows the equipment observed from a small place and data supplied for analysis.
Preventive Maintenance System
To maintain the equipment and materials on a regular basis in order to maintain those running conditions and reduce unnecessary shutdowns due to unexpected equipment failure is called Preventive Maintenance (PM).
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Exam practically 2nd...
Middle Technical University
Electrical Engineering Technieal
College
Department of control Eng. Tech.
Subject: practical Instr.
Stage: 2n stage
Date: 5/ 3/2021
Lecturer: nabil
Time: 2 hours
2020-2021
Answer All Questions:
Q1:A: Design a multi-range ammeter of 0.5 and 1 Amp. using a PMMC(galvanometer) of
500 internal resistance and full-scale current of 1 ma. Show the way of connection with the
load R1.
B: What are the things that must be taken into consideration practically when using the
ammeter.
Q2: Design series ohmmeter using PMMC of 1000 internal resistance and 0.4ma full-scale
deflection current. The required half-scale deflection is equal to 9kO.Juse a battery of 9v].
Sketch the internal circuit diagram of the ohmmeter. Sketch also roughly the scale of the
designed meter.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F59feff0d-cd35-4d1c-86f3-b976a837c5ee%2Fd5c8dabb-22b9-4a5d-b6c8-b72fd429ddb0%2F4zsw7jl_processed.jpeg&w=3840&q=75)
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