5 Electrical Cabling Terms You Need To Know

Electrical cabling, and its associated jargon, can make for a confusing or overwhelming experience. Yet making a mistake when dealing with electrical cabling and its accessories, could stop you wiring project dead in its tracts, or even prove fatal.

Here we take a look at the most important electrical cabling terms you need to know, whether you are wiring yourself or talking to an electrician. Read More

Completed Guideline How To Verify,Setup And Installation for ENDRESS+HAUSER Ultrasonic Clamp-On Flow Meter

This post,I would like to share video from ENDRESS+HAUSER about completed guideline how to install Ultrasonic Clamp-On Flow Meter Proline Prosonic start from determine right position to install a sensors,mounting specs and measurement,how to setup and install sensor,cable route and how to do cable termination from transmitter to sensor.

From this video,I hope all of you can get the clear view,how to setup,install and commissioning your Ultrasonic Clamp-On Flow Meter with perfect and right method to ensure this unit working properly without any trouble.ENDRESS+HAUSER always improved their customer service and technical support from time to time to ensure their products can meet customer satisfaction. Read More

How to use three phase motor in single phase power supply

This time,I would like to share some important knowledge that I used it when faced emergency or critical situation.What are you doing if have only three phase motor and single phase power supply available?

How to use three phase motor in single phase power supply?Actually three phase motor can operate in single phase power supply  with the help of a permanent CAPACITOR.This small thing (capacitor) very helpful to make three phase motor running in single phase power supply.

As per our last discussion about three phase motor,normally it’s have two(2) common winding connection ,STAR or DELTA connection.In this post,I explained how to wiring the capacitor in three phase motor,how to change motor rotation,how to estimate value of capacitance and selection of suitable capacitor. Read More

Distribution substations

For electrical power distribution,substation is the one important component to serve,distributing and regulated an electricity to building,factory or private living area.

Normally substations have the several required equipment such as power transformers and the voltage-regulating device for converting the high incoming sub-transmission voltages to low voltage primary system and ensure it in specified voltage tolerances.

The others basic equipment in substations includes circuit breakers, switches, bus bars, shunt coil reactor, power factor correction capacitors, lightning arresters, read more

Air-conditioner sizing

Air-conditioner is one of equipment that used and  popular in around the world to cooling our room,office or any space.Now in our market,air-conditioner have in many types and sizes.It depend on our application and types of space that we want use it.

When install an air-conditioner,we want it running in more efficiency and enough capacity can cooling the room.So we must install the right size for our room to ensure it suitable with room size and our application.

If we choose a smaller size for air-conditioner,it will running all the times to cooling the room.Your electricity bills will increase.But if you choose too big,it can kill you also with high electricity cost.So we need to choose a right size for air-conditioner. read more

Automatic voltage regulator for generator

The AVR ( automatic voltage regulator ) is suitable for supplying power to the fields of either brushless or commutator type exciters and will maintain the A.C generator voltage within plus and minus 1% of the preset value with paralleling.

When the load varies between no load and rated load and with a frequency changes more than plus minus 4%.Upon application or rejection of rated load,the generator voltage recovers to plus and minus 1% within 0.3 second on most AVR exciter in A.C generator combination. read more

Low speed protection for A.C generator

For a given excitation,if speed of an A.C. generator is reduced then the output voltage would reduce also.In practice,this reduction in output voltage is sensed by the AVR ( Automatic voltage regulator ) which increases the excitation current to compensate.

However,the field forcing capabilities of the AVR which are necessary to maintain output voltage during rapid load changes,will permit an “over-excitation” condition to exist.

As the regulator is not speed ( or frequency) sensitive,field forcing would occur damage field windings and rotating diode.In order to safeguard the machine against this condition,particularly where low speed duty or idling is anticipated a LSP ( low speed protection ) unit is available to sense prolonged over-excitation and automatically insert current limiting resistance in the field circuit. read more