Detecting faults and errors (open and short circuit faults) in the electrical circuit by using built in devices like current sensor, voltage sensor. Power sensor

Electrical equipment can be isolated using opt-couplers, isolating transformers or any other device which isolates two electrical circuits from one another. Electrical isolation is required to prevent damage to either electrical circuit when one of them is under fault conditions.

·       Site Safety Management

·       Identify the circuit to be isolated and ensure that the correct point of isolation is identified

·       Switch the circuit breaker or isolator

·       Caution Notices

·       Proving Dead Isolated Equipment or Circuits (using multimeter)

Test equipment is necessary for determining proper set-up, adjustment, operation, and maintenance of electrical systems

• Ammeter (Ampermeter): Measures current

• Capacitance meter: Measures the capacitance of a component

• Cos Phi Meter: Measures the power factor

• Distortionmeter: Measures the distortion added to a circuit

• Electricity meter: Measures the amount of energy dissipated

• ESR meter: Measures the equivalent series resistance of capacitors

• Frequency counter: Measures the frequency of the current

• Leakage tester: Measures leakage across the plates of a capacitor

• LCR meter: Measures the inductance, capacitance and resistance of a component

• Multimeter: General purpose instrument measures voltage, current and resistance (and sometimes other quantities as well)

• Ohmmeter: Measures the resistance of a component

• Oscilloscope: Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset, ...

• Transistor tester: Tests transistors

• Wattmeter: Measures the power

• Voltmeter: Measures the potential difference between two points in a circuit.

Methods used for testing the electrical circuit faults:

Visual: burnt out components, signs of overheating, and missing components can be found easily through a thorough visual inspection.

Physical: By touching the surface of the electrical circuits

Discrete Component Testing

Calculations to determine the accurate amount of power, voltage, Resistance and current

5 Step Troubleshooting Approach consists of the following steps:

Step 1 Observation

Step 2 Define Problem Area

Step 3 Identify Possible Causes

Step 4 Determine Most Probable Cause

Step 5 Test and Repair

Follow-up

Tools and documents for keeping record and follow-up electrical circuits fault and maintaining.

Technicians need to gather information regarding the equipment and the problem. They should understand how the equipment is designed to operate. It is much easier to analyze faulty operation when know how it should operate. Operation or equipment manuals and drawings are great sources of information and are helpful to have available. If there are equipment history records, Technicians should review them to see if there are any recurring problems. They should also have on-hand any documentation describing the problem. (i.e., a work order, trouble report, or even your notes taken from a discussion with appropriate person)

The process of circuit design begins with the specification, which states the functionality that the finished design must provide, but does not indicate how it is to be achieved. As the repair procedure some time technician will frequently return to the specification and alter it to take account of the progress of the design if need or troubleshoot implemented changes

Features and properties include in A datasheet, data sheet, which is document that summarizes the performance and other technical characteristics of a product, machine, component (e.g., an electronic component), material, and subsystem..)

Applicable industry standards Generally accepted requirements followed by the members of an industry.

National standards: a regionally adoptable standards for the safe installation of electrical wiring and equipment in the country

National occupational health and safety commission and regulatory requirements: The National Occupational Health and Safety Commission has declared a National Code of Practice for the Labelling of Workplace Substances. The National Occupational Health and Safety Commission is a tripartite body established by the Commonwealth Government to develop, facilitate and implement a national occupational health and safety strategy. This strategy includes standards development, the development of hazard-specific and industry based preventive strategies, research, training, information collection and dissemination and the development of common approaches to occupational health and safety legislation.

Common electrical hazards are ;

Electric shock and burns from contact with live parts.

injury from exposure to arcing, fire from faulty electrical equipment or installations

protect employees and other persons from the hazards of substances used at work by risk assessment, control of exposure, health surveillance and incident

A Code of Practice is a practical guide to achieve the standards of health and safety required under the model Work Health and Safety (WHS) Act and model WHS Regulations. Codes of Practice provide duty holders with guidance on effective ways to manage work health and safety risks.

electric power workers often use Insulating Protective Equipment (IPE), such as line hoses, rubber hoods, rubber blankets, and insulating live-line tools (for example, hotsticks, switchsticks, or shotgun sticks) for protection.

This includes knowing the hazards of their jobs and their workplace and knowing how to control these hazards. Having written safe work practices and proceduresis an essential component of an OH&S program. A practice is a set of guidelines to help workers perform a task that may not require a step-by-step procedure.

This includes knowing the hazards of their jobs and their workplace and knowing how to control these hazards. Having written safe work practices and proceduresis an essential component of an OH&S program. A practice is a set of guidelines to help workers perform a task that may not require a step-by-step procedure.