Devices Used For Measuring Resistance Power And Current

A Resistance Meter in australia  is an instrument used to measure the resistance of an element or component. Resistance is the opposition presented by a substance to the flow of electric current, and it is measured in Ohms. Resistance meter applies current to the component, whose resistance is to be measured, and resulting voltage is measured. Knowing the value of voltage, resistance can be calculated, as V=IR (Ohm’s law) and hence knowing the current flown through the component and measuring the voltage across it, value of R can be calculated. To measure the resistance of a circuit or component, we have to disconnect it from power. Generally, to measure the resistance, resistance meter should be connected in parallel, but it can be connected in series also.

Usage of electrical power is increasing day by day and therefore, load on electrical circuits is also changing, which may result in energy waste. If we can discover this source of energy waste, a strategy can be developed to reduce the waste. A Power Logger in australia is an instrument to find out, when and where the power is consumed, and do the needful to ensure efficient use of energy.Power and energy loggers study the load and hence it can be found that from where energy can be saved. Power/energy loggers is used by electricians, and contractors, who work in the area of building, and system monitoring. It can also be used for energy audits, in which all important data is recorded, measured and analyzed.

An electric device with jaws, which open to allow clamping around an electrical conductor and so measures the current in a conductor is known as Current Probe in australia. It measures the current flowing through conductor without having physical contact with it. Current probes are used to measure the magnitude of alternating current and in conjunction with additional instruments, it can measure phase and waveform also. There are many types of current clamps 1) current transformer, 2) Iron vane, 3) Hall effect, 4) Rogowski coil and a clamp meter. There are some other types of current probes, which can measure DC current also.