Moving Coil
Moving Coil Instruments are used for measuring DC
quantities. They can be used on AC systems when fed through bridge rectifiers.
Center magnet system is incorporated in our moving coil instruments which
completely shields the movement from the effect of external magnetic fields.
The movement is pivoted between synthetic sapphire jewel bearings for
frictionless operation.
Moving Iron
Moving Iron Instruments are generally used for
measuring AC Voltage and Currents. A feature of the moving element is that it
is fitted with synthetic sapphire jewels. The movement is light, quick acting,
but extremely robust. An efficient system of fluid damping is employed. The
movement is efficiently shielded against the effect of external magnetic
fields.
Dynamometer:
A dynamometer or
"dyno" for short, is a device for measuring force, moment of
force (torque), or power. For example, the power produced by an engine, motor
or other rotating prime mover can be calculated by simultaneously measuring
torque and rotational speed (rpm).
A dynamometer can also
be used to determine the torque and power required to operate a driven machine
such as a pump. In that case, a motoring or driving dynamometer is used. A
dynamometer that is designed to be driven is called an absorption or passive
dynamometer. A dynamometer that can either drive or absorb is called a
universal or active dynamometer.
Dynamometers are
specialized instruments used to measure an engine's revolutions per minute
(RPM) and torque. RPM is a measurement of the number of times the crankshaft revolves
inside an engine. The more revolutions a crankshaft makes each minute, the
faster and more powerful the engine is.
Fig(dynamometer
Outline)
Energy Meter:
Introduction
The energy meter is an
electrical measuring device, which is used to record Electrical Energy Consumed
over a specified period of time in terms of units.Electric meters are typically
calibrated in billing units, the most common one being the kilowatt hour. A
periodic reading of electric meters establishes billing cycles and energy used
during a cycle.
Features:
* Display
of current time (24 hours type), week, load power and cost tariff.
* Display
of total on time, total used energy and accrued energy cost.
* Display
of total record time, total on time and percentage.
* Dual
programmable power tariffs.
* Connection,
operation settings.
Related Topics
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.