Low resistance measurement and testing in electrical wiring system

 Low resistance measurement and testing

Low resistance measurement of the resistance value below 1.0000 OHM in electrical. 1 OHM is a very small value of resistance and at this value the measurement is very critical. For such a low resistance measurement it is a must to keep the measurement error free and keep it very accurate. It's important to use a very special kind of tester, taking care of the test lead resistance, taking contacts resistance in consideration. At such low resistance measurement the induced emf in testing systems or wiring like emf induced due to magnetic field, emf induced due to thermal effect or emf induced between joints is also important to consider. Such induced voltage is creating an error in the measurement. Standing voltage can create big trouble in measurement of such small quantities.

Low resistance test used in industry

Low resistance problem in industry


As most industries consumes much more power to make production products. Very big motors are installed in industry which a takes a lot of power and kilo Amperes to operate. Such industries must have low resistance measurement routine in their maintenance schedule. They must keep a low resistance test for such measurement. Electrical system or installation which develops high resistance problem is creating heating, heating creates further problem like risk of fire and also the heating is a cause of energy loss. The energy loss due to heating leads to prating cost which increase the production cost and reduces the profit margin. In such a case one is tended to pay for the energy which is not used for a beneficial purpose or production.

Following is a list of companies which should consider the low resistance testing to reduce the unwanted energy loss due to unwanted high resistance induction in the electrical system:

  • Telecom companies
  • Cars and automotive
  • Cement industry
  • Chemical industry
  • Oil refineries
  • Aircraft and missile industry
  • Industries having their own solar power generation
  • Sugar industry
  • Food processing industry
  • Steel industry
  • Mining
  • Railway
  • Electronics industry

Comments

Post a Comment

Popular posts from this blog

Microwave oven front panel keypad repair and modification

Image
Here is the video on youtube. You must watch it if you are a Urdu to Hindi viewer: Here is the video on youtube. You must watch it if you are an English viewer: The microwave oven is a useful machine to preheat or cook food. The microwave oven is working reliably but now a days Chinese microwave oven have big front panel keypad failure. The keypad is breaking down in one year of less time. The repair is not easy and sometimes the replacement parts are not readily available then it becomes another problem. The solution to such a problem is a modification with existing easily available parts and some wire connections to the main board. The modification is a very robust an reliable work so that will never break down or if breaks down, the repair would be way easy and low cost. Here is a little detail with images is included for such a modification work. Most of the images are from the video associated with this blog post. Anyhow it will further explain the important...
Read more

Sandwich maker or sandwich grill repair and maintenance

Image
Here is a youtube video covering all these details in video: Sandwich maker or sandwich grill is a common house hold electrical appliance used in every house and every facility. They are daily use electrical appliances. They are of different make and model. One thing is common in all of them is the heating element and a sort of temperature controlling switch operated on some preset or selectable temperature range. The heating element are heated by line power and are switched off when the desired temperature is reached. By that way the grill or heating plate is heated and the toast put there is also grilled or heated by that temperature. Sandwich makers or sandwich grill are reliable equipment but some times they develop troubles. The result is no heating grill or heating plates. Normally there are electrical connection problem or temperature controlling switch problem. The heating element failure is also possible but that is a rare fault. So if a grill or sandwich ...
Read more

TP4056 li-ion 3.7v battery 18650 Charging Module Detail, Pinout and datasheet

Image
 In this text I will discuss about the famous TP4056 charging module which is a 3.70V  Li-ion battery 18650 in detail. The pinout, characteristics, setup and calibration for battery value will be covered in this text. TP4056 charger module is a very tiny size module to charge li ion batteries that it can fit anywhere inside any electronic equipment or instrument. TP4056 module consists of a single chip IC TP5640  and a few other supporting components which makes high quality and precision charging module which gives complete solution to automatically charge li-ion batteries of any small size. Using TP4056 module to charge the li-ion battery, it provides full battery life and effective charging to prolong battery life with great efficiency. Using TP4056 battery charging module you can make the line powered equipment less power consuming and the old equipment using dry cell can be converted to rechargeable battery solution. TP4056 Charger or charging module TP4056 Charging ...
Read more