What is the Delivery Failure issue for centrifugal pumps?
This is the commonly seen issue in pumps. When the pump is not able to deliver the required pressure it is considered to be a delivery failure problem. Steps to…
What is friction losses in the pumping system and how to minimize it?
Friction loss essentially refers to resistance caused by fluid flowing through pumps, pipes, and fitting. That resistance results in decreased pumping pressure and decreased fluid velocity. Friction between the adjacent…
What is a solar simulator and also specify the use of a solar simulator for Pump testing?
A solar simulator is also known as a Solar array simulator (SAS) is simply a programmable DC power supply that provides illumination approximating natural sunlight. The purpose of the solar…
Importance of Blocked Rotor Test on Motors
A blocked rotor test is conducted on an induction motor. It is also known as short circuit test, locked rotor test or stalled torque test. From this test, short circuit…
Why High Voltage Test is important for Motors or any Electrical Equipment?
A high voltage is used to verify that the clearances and solid insulation of components have adequate dielectric strength to resist expected overvoltage conditions. It also shows that the equipment…
Construction & Working Principle of BLDC Motors.
Electrical motors have been developed in various special types, such as stepper motors, servo motors, permanent magnet motors, etc. We have a lot of choices to choose a motor that…
What kind of protection required for pumps ?
Every year, more than 20% of electric motors installed burnout around the world. This is in spite of protection systems being provided. This proves inadequacy of selected protection systems. In…
Why star delta starter required for three phase induction motor with higher rating ?
Most induction motors are started directly on line, but when very large motors are started that way, they cause a disturbance of voltage on the supply lines due to large…
What is Auto Transformer Starter?
In electrical engineering, the Korndorfer starter is a technique used for reduced voltage soft starting of induction motors. The circuit uses a three-phase autotransformer and three three-phase switches. This motor starting method has been updated and improved by…
Why DC motors is best choice then AC motors for solar application ?
BLDC solar pump works in low radiance also. It starts early in morning and continues to work till late in the evening. BLDC pump works efficiently than normal AC motor and gives more water output. Consequently, AC motors are less efficient than…
Why Single Phase Induction Motor is not Self Starting? & How to make it self starting.
According to double field revolving theory, we can resolve any alternating quantity into two components. Each component has a magnitude equal to the half of the maximum magnitude of the…
