When we need to evaluate the motor condition,HI-POT tester or High Potential tester is the common equipment are used.As we know,a multimeter or ohm meter reading only can determine if a motor winding is open or shorted but cannot checked winding insulation condition if shorted with ground or phase. The main purpose of the Hi [...]
When we perform insulation resistance tester,temperature winding effected the accuracy of Mega Ohms reading.The basic theory is when temperature increase,the insulation resistance decrease due to physical factor of material for winding. To get a accurate reading for insulation resistance ( Mega Ohms ),we need to ensure the minimum temperature during measurement. According to IEEE 43,the [...]
This measurement important to determine the winding condition for electric motor,electric cables,electrical installation,transformer,circuit breaker,heater and electrical equipment. From the data of insulation resistance,we can make a perfect and clear decision either the electrical equipment in good condition or not. The insulation resistance testing also can avoid serious damage,fire or electric shock to public and personal.It [...]
High voltage detector or indicator is the one of important tool when perform the task in high voltage.It can determine if electrical line is live or not.The main purpose is to ensure we perform the job in a safety condition. Around the world,many accident happened for electrical shock came from misidentified the electric line either it live [...]
In electrical field,current (ampere) is very important value.It very useful to sizing the circuit breaker,sizing the electric cable,for troubleshooting guideline and many more.Without ampere value,we cannot get the best result for sizing or design. How we can get a current value?We can use the ammeter or clamp on meter to measure the current value.If you [...]
This is another alternative method for earthing resistance measurement when excellent ground is already available.When we want to perform the measurement for earthing resistance in the compact room or tight area and want to put the two(2) auxiliary rod may be a problem. So..to solve this problem,we can use the two point method measurement.This measurement [...]
Electrical motor is the common used in industry all over the world.It very important device to made production smoothly.To ensure the electrical motor condition is good or not,we must know how to testing it. The electrician or maintenance person must have this skill to determine the electrical motor condition,defected or cannot use anymore.It can save [...]
