Menggunakan a multimeter untuk mengukur kebocoran kesalahan di sirkuit atau peralatan
As an esensial pengukuran instrumen untuk listrik% 2c a multimeter can measure banyak fisik kuantitas seperti as tegangan% 2c arus% 2c resistensi % 2c dan kapasitansi. Oleh karena itu, a multimeter plays a sangat penting peran dalam mengukur sirkuit dan memperbaiki sirkuit. How to use a multimeter to measure leakage faults in circuits or equipment.
Leakage is caused by the electrical connection between the damaged insulation layer of the wire and the electrical casing equipment, which causes the current in the wire to "leak" out. For example, the contact between the motor casing and any three-phase electricity may cause leakage; Another issue is that the electrical connection between the shell of a household appliance and the live wire in the mains is caused by some reason, resulting in a certain potential difference between the metal shell of the household appliance and the live wire. This phenomenon is also known as leakage. The occurrence of electric leakage can pose a significant risk and easily cause electric shock accidents for machine operators. In this regard, we often use leakage protectors to protect the circuit.
What gear is used by a multimeter to measure kebocoran
How to conduct inspections after a leakage accident occur? This is an issue that many friends are concerned about. Now, let me share my opinion on this issue. The first thing we think of is using a multimeter to detect electrical equipment for leakage faults. I think there are two methods of detection, one is using the electrical resistance method; The other method is the voltage method.
1. Perlawanan metode untuk mendeteksi kebocoran kesalahan
Kapan menggunakan the resistensi metode untuk mendeteksi kebocoran kesalahan% 2c pertama memutuskan sambungan daya pasokan dari listrik peralatan. Kami dapat menggunakan a pointer multimeter at the RX10K posisi. Jika itu is adalah digital multimeter adalah digital itu bisa set at th 200M posisi. Gunakan satu satu probe dari dari multimeter untuk kontak dari peralatan Co Circuit of the live wire (fase kawat), and then use the other probe contact the metal shell of the equipment. Di bawah normal keadaan, the pointer of the multimeter should display an infinite resistance value. If there is a deviation of the pointer at this time, That means that the insulation strength between the metal shell of this electrical equipment and the power supply is not enough, which means there is leakage.
