News and Announcements - Test Equipments

03 Jun

What is Partial Discharge? What is the Importance of Partial Discharge? How Do We Understand Transformer Partial Discharge? What are Partial Discharge Precautions?

03/06/2022
Posted by multitechtr2

What is Electrical Partial Discharge? Electrical Partial Discharge ; They are electrical discharges or sparks that occur due to the gaps in the structure of the insulating material or the problems in its continuity between two conductive electrodes, and the inability to form a full bridge. The amount of partial discharge is very weak and small and cannot be detected by the senses such as the...

31 May

News and Announcements

What is Contact (Contact) Resistance, Where It Occurs, How Is It Tested?

31/05/2022
Posted by multitechtr2

What is Contact (Contact) Resistance? The term contact (contact) resistance refers to the contribution to the total resistance of a system, which can be attributed to the contacting interfaces of electrical cables and connections, as opposed to internal resistance. There are two main determinants of contact resistance: Geometry between contacting surfaces Insulation layers The resistance of a contact is inversely proportional to its area, which in turn...

30 May

News and Announcements

DC and AC resistance and is it different from two different points?

30/05/2022
Posted by multitechtr2

What is DC Resistance? DC resistance is the resistance of the component when connected to DC, that is, the inherent static resistance of the component. The unit of resistance is "Ohm", denoted by Ω and denoted by "R". We know that there is no concept of Inductive and Coactive reactance in C Circuits. that is, since there is no frequency in DC circuits, the capacitive and...

26 May

News and Announcements

What is the Dielectric Estimation (Tan Delta) of a Transformer and What is the Test Purpose and Method?

30/05/2022
Posted by multitechtr2

What is Tan Delta (dielectric loss) Test? Since transformer oil is used in circuit breakers, cables and switches, it is also necessary to test the conditioning of the oil. This is because it strengthens the dielectric properties of the oil and hence the Tan Delta Test is used to know the condition of the oil in the transformer. The complementary angle of the included angle (power...

24 May

News and Announcements

Transformer Short Circuit Impedance and Load Impedance Test

24/05/2022
Posted by multitechtr2

What is Impedance? If we define the meaning of the word within the framework of electrical engineering: When voltage is applied to an electrical circuit, the amount of resistance that the circuit exerts against the electric current is called impedance. It is denoted by Z and its unit is Ohm. Transformer Short Circuit Impedance ; The short-circuit impedance is the percentage of the rated voltage that will...

19 May

News and Announcements

What is Insulation (Insulation) Resistance-Insulation (Insulation) Resistance Test?

20/05/2022
Posted by multitechtr2

What is Insulation (Insulation) Resistance? Insulation (insulation resistance) is used to measure the resistance value of the insulation (insulation) power of large transformers, transformers, generators, high-voltage motors, power capacitors, equipment such as power cables and arresters. What is Insulation (Insulation) Resistance Test? The insulation (insulation) resistance test measures the total resistance between any two points separated by electrical insulation. The purpose of measuring the insulation resistance of a...

18 May

News and Announcements

Purpose of Transformer No Load Test, Test Method

20/05/2022
Posted by multitechtr2
0 comments

Purpose of Transformer No Load Test Test Method Transformer No Load Test is performed to determine the no-load impedance in the excitation arm of 10kv and above transformers. The increase in the changing voltage no-load loss in the measurement is usually caused by a short circuit between the winding turns, a short circuit between the winding layers, a short circuit of the winding parallel branch, and the...

18 May

News and Announcements

What is DC Resistance and Transformer Winding Resistance Test?

30/05/2022
Posted by multitechtr2

What is DC Resistance? DC resistance, is the inherent static resistance of the conductor, it is the resistance applied to the object by applying a certain amount of DC current to the object. What is Transformer Winding Resistance Test? Transformer Winding Resistance Test; is to check the large differences between the windings and the gaps in the connections. Measuring the resistance of the transformer windings ensures that each...

17 May

News and Announcements

What is Transformer Winding Deformation?

20/05/2022
Posted by multitechtr2

Transformer winding deformation is the irreversible change in the shape and size of the winding due to mechanical force and electromotive force. The transformer is inevitably exposed to various short-circuit effects during operation, and short-circuits at the output are harmful to the transformer. What is Transformer Winding Deformation Tester? Transformer Winding Deformation Tester is a powerful and sensitive method for testing the mechanical integrity of transformer cores,...

22 May

News and Announcements

What is Grounding Resistance?

22/05/2020
Posted by multitechtr2
0 comments

What is Grounding Resistance? it is the reaction of the soil to pass electrical current. Earth conductor is a weaker conductor than normal conductors such as copper. However, if the area for the current is large enough, the resistance is low and the ground can become a good conductor. This system must be between the conductors and the ground in our system. By making the...