Introduction to the high voltage and low voltage clamp meters
The high and low voltage clamp ammeter breaks through the traditional structure and is specially designed for online measurement of leakage of high voltage lines and judgment of the operation of zinc oxide arresters. Using CT and shielding technology, it is composed of a special high-voltage detector and a high-voltage insulating rod. It transmits test data wirelessly and is equipped with a wireless receiver that can receive the measured data within a straight line of 30 meters. If the insulating rod is not used, it can also be used as a high-precision low-voltage clamp leakage meter or ammeter, which can accurately measure leakage current or current of 0.01mA.
High and low voltage clamp ammeters can be used as high and low voltage current transformer ratio testers and zinc oxide arrester testers. That is, the currents of the primary and secondary circuits of the current transformer are measured respectively, and then the transformation ratio or converted transformation ratio of the current transformer is calculated. Note: Since the leakage current of the arrester after being put into operation should be less than 500uA, the operation of the arrester can be judged based on the leakage of the tested arrester. If the actual leakage current of the arrester is too large, exceeding 500uA, and if the system voltage is ruled out as being too high, the arrester may If there are stains, moisture, or aging, the greater the leakage current, the more serious the stains, moisture, or aging will be.
The innovative integrated design of the clamp head and guide area of the high and low voltage clamp ammeter ensures high precision, high reliability and high stability of uninterrupted testing all year round. The insulating rod is lightweight and has the characteristics of moisture-proof, high-temperature resistance, impact resistance, bending resistance, high insulation, and retractability.
This instrument is connected to an insulating rod and can be used to measure leakage current of high-voltage lines below 60kV, online current measurement, and determine whether the zinc oxide arrester is damp or operating poorly. The instrument also has functions such as peak hold, data hold, data storage, and wireless transmission. It is dedicated The high-voltage clamp can easily clamp or evacuate the wire under test by pressing or pulling out the insulating rod, saving time and speed. It is widely used in substations, power plants, industrial and mining enterprises, testing stations, and electrician maintenance departments for leakage detection and field electrical work.
The high and low voltage clamp ammeter is connected to an insulating rod and can be used for current measurement of high voltage lines below 23KV and online current measurement. It also has functions such as peak hold, data retention, data storage, wireless transmission, etc. Its special clamp ammeter can be insulated by pressing or withdrawing The rod can easily clamp or evacuate the conductor under test, saving time and speed. It is widely used in substations, power plants, industrial and mining enterprises, testing stations, and electrician maintenance departments for current detection and field electrical work. It can also replace the high and low voltage transformation ratio tester, that is, measure the high and low voltage currents of the primary circuit and the secondary circuit respectively, and then calculate the high and low voltage transformation ratios. The insulating rod is lightweight and has the characteristics of moisture-proof, high-temperature resistance, impact resistance, bending resistance, high insulation, and retractability.
