All About Hi-Pot Test And Quality Control

When a process of inspection is carried out, the firm determining the quality of the product carries out several tests. The kinds of tests depend on the product type, which is under the test of quality control. One of the essential types of test which gets carried out in case of electrical products is known as the hipot test. Many popular industries invest in quality Hipot test kit in order to determine whether the products conform to the standards of quality or not. 

The term hipot basically means high potential. This test helps to verify the insulation of the electrical products so that the user remains protected from the hazards of electrical shocks. This enhances the reliability of the users in electrical appliances, circuit boards, cables, and motors. An extremely high degree of voltage gets applied at the time of hipot testing. The use of Hipot tester in India is also popular as it can detect the leakage of current from any product. 

Common Types Of Tests Carried Out By Hipot Test Equipment: 

* Test For Dielectric Breakdown: In this type, the voltage gets increased until there is breakdown or failure of the dielectric. This helps in finding out the highest degree of voltage which the cable is able to handle. Thus, the capacity of the cable gets determined by the test. This type of test destroys the dielectric capacity of the product and thus is mainly applied to samples. 

* Test For Dielectric Voltage Withstanding: In this type of test, the voltage of a standard level gets applied which helps in monitoring the leakage of current. The current flow is always kept below the normal limit for a certain period of time. The dielectric system does not get destroyed in this type hipot testing. Thus, this method can be applied for checking most of the electrical products for their quality concerns. 

* Test For Insulation Resistance: This test helps in detecting the value of resistance of the insulation of the product. The degrees of current and voltage are used for calculating the insulation resistance. This makes sure that the electrical instruments are safe for use and can be sold in the market without any threats of harm to the end users. 

In case of AC hipot test, the frequency level is kept quite low and always ranges in between 0.01 to 1.00 Hz. This type of testing is also known as the VLF (very low frequency) hipot testing. It has wide uses all over India and caters to many important industries. This testing method is mainly carried out in case of offline cables. During the test, the cable is always disconnected from the main power system and is properly grounded as well.

The voltage here is reduced to almost zero and the cable as well as the VLF instrument is totally discharged before the testing takes place. This method helps to detect any type of fault that exists in the instrument so that they can be repaired before final setup. 

Hipot instrument purchased from reliable Hipot tester manufacturer in India ensures high accuracy and precision at the time of testing. The models today are quite affordable and are available in different designs suiting every application.

Importance of Hipot Test Kit in Electrical Appliances

The Hipot Test is an important test in electrical engineering which is used to check the adequacy of electrical insulation in different electrical appliances.  This test is very important to check the working of the electrical gadgets and this is the reason a large number of the electrical goods company have come up with the idea to manufacture hipot tester India. 

The term hipot test actually stands for High Potential difference test or High Voltage test. In electrical engineering, it is also termed as Dielectric Withstand Test. This test makes sure that no current would flow from one terminal to another by the application of a high potential difference when the test is run. The hipot test equipment along with Coating thickness tester and Analyser is quite in vogue in the electric appliances manufacturing company in India and abroad.
 
How is Hipot Test conducted?

In the simplest form, the hipot test can be conducted by the application of a relatively high voltage between two conductors which are separated by the insulators. The material which would insulate the appliances is supposed to withstand the voltage without the development of any snag. The insulation is said to be adequate or pass the test of dielectric strength when the appliances withstand the high voltage without breaking down.
 
The Hipot test is generally conducted between the primary circuit and low-voltage secondary circuits. Here the hipot test equipment generally connects one side of the supply current to Earth and the other side to the conductor which is being tested. The given conductor can be connected either to the high voltage or to the Earth. When there are two or more contacts to be tested for the high potential difference then one of the contacts are connected to the high voltage and the other contacts are connected to the ground. In this way, you can rest assured that the contacts are isolated from one another.
 
Importance of HIPOT Test

The hipot test is very significant in electrical engineering, this is the main reason that many hipot tester manufacturers in India have come up in recent times. The importance of hipot test or dielectric withstands test are summarised below.

• Non-destructive Test

The dielectric withstands test is a non-destructive test which can determine the adequacy of electrical insulation effectively. It is a high voltage test which is generally applied to all the electrical appliances for a specific time to be assured that the insulation used in the appliances is not marginal.

• The hipot test is generally conducted to find out whether any fault has been developed in the electrical devices after it is subjected to humidity, fault condition or vibration.

• The hipot test is an important test of the manufacturing process for the detection of the reduction in creepage and clearance of the transformer wound or pinhole defect in insulation or in order to find out an enlarged solder footprint. These failures can arise from a new operator in the winding department. Many research and developments are currently carried out in electrical engineering on the hipot test.

So, this was in brief, the significance of hipot test in electric engineering and the manufacturing industry.

What Is Electrical Motor Testing Equipment?

Companies often tend to overlook the need for electrical maintenance and management programs. A well- maintained equipment reduces capital overhead costs and increases equipment readiness. Various maintenance and management tools are used for regulating the care of electric motor systems. A research conducted by The Electrical Power Research Institute stated that 48% of the motor failures happened because of electrical problems. Out of the 48%, 12% occurred due to rotor problems and the rest 36% due to wind issues. In order to eliminate these issues several diagnostic tools are essentially used like- ammeters, temperature sensors, and Megger.

Types of Tests Performed

The Electric motor testing equipment performs the following functions-

* Wind Resistance Test

* Static Or Insulation Testing

* PC Tests

* Meg-Ohm Tests

* Electric Motor Insulation Resistance Testing

* Wound Rotor Electric Motor Testing

* Electric Motor Rotation Testing

* Electric Motor Impulse Testing

* DC Step Voltage Test

* DC Hipot Test

* Surge Test

Most of the winding problem starts due to contamination, thermal overload, power surges, aging of insulation, and damaged wires. Purchase the equipment from electrical motor testing equipment suppliers and adopt a well-planned preventive maintenance program to make the equipment last longer.
 
Role Of Environmental Test Chambers

Also known as climate chamber an environmental chamber is essentially an enclosure in which effects of specific environmental conditions are properly tested on biological items, industrial products, electronic devices, and components. These test chambers can be of three types – modular walk-in chambers, liquid nitrogen cooled test chambers, and mechanically cooled test chambers. The environmental test chamber manufacturers in India aimed at supplying an equipment capable of testing and exposing products to various environmental conditions in a controlled manner. Environmental test chambers expose products to these common conditions- electrodynamic vibrations, cyclic corrosion testing, salt spray, electromagnetic radiation, thermal shock etc.
 
An environment test chamber is very important for discovering defects in a product at the very elementary stage itself. This is beneficial both ways in terms of low maintenance cost of the product post-production and a properly tested product satisfies the customer as well.

Therefore product and equipment testing is an integral part of running a business successfully. It, in turn, leads to a better return on investment in the long run. 

All About Microscope

Microscopes are available in all the sophisticated varieties beginning from the single lensed microscope to the different systems of imaging. The difference is due to the resolutions, methods of illumination, image type, automation degree, etc.

However, based on the source of radiation, these microscopes are further subdivided in the form of confocal, electron and light. The light microscope is further sub divided into the compound and the stereo microscope. The stereo microscope is even known by the name dissection microscope which has the capability of producing a three-dimensional view of any object. The compound microscope can provide only the two-dimensional image of any object which could be used up in the lab itself. There are some another type of microscope which is named as the phase contrast microscope or the dark field microscope which further modifies the light principles in order to get a better visual display of all the specimens. Even the microscope namely the oil immersion one makes use of the oil between the specimen and the lens in order to enhance the magnification degree.

The electron microscopes make use of the electron streams as the source of radiation instead of using the lights. It even ensures that the magnification level is maintained at a higher level which could be made use effectively in the different field of medicine, archaeology and geology. The transmission excellently magnifies the inner details of the specimens using the beams of electrons. The scanning electron microscope is one modified version of TEM that has the capability of scanning the objects in no time. The scanning probe one is an assembled version of the microscopes which frames images just by the specimen scanning making use of the physical current probe. It has been greatly used up in the field of nanotechnology. The XRF Analyzer is even one of the techniques used for the analytical purpose and determination of the composition of the various materials. The Voltage transducer is being used up in the current instrument in order to monitor the entire DC current.