Introduction to high and low voltage clamp ammeters and safety specifications for use
Introduction and safe use specifications of high and low voltage clamp ammeter
The high and low voltage clamp ammeter breaks through the traditional structure and is specifically designed for online measurement of leakage in high-voltage lines and judgment of the operation of zinc oxide lightning arresters. Using CT and shielding technology, it is composed of a dedicated high-voltage detector and a high-voltage insulation rod. It wirelessly transmits test data and is equipped with a wireless receiver, which can receive the measured data within 30 meters in a straight line. If an insulating rod is not used, it can also be used as a high-precision low-voltage clamp leakage current meter or ammeter, which can accurately measure a leakage current or current of 0.01mA.
The high and low voltage clamp ammeter can be used as a transformer ratio tester for high and low voltage current transformers, as well as a zinc oxide lightning arrester tester. Measure the current of the primary and secondary circuits of the current transformer separately, and then calculate the transformation ratio or converted transformation ratio of the current transformer. Attention: Since the leakage current of the lightning arrester after being put into operation should be less than 500uA, the operation of the lightning arrester can be judged based on the leakage situation of the tested lightning arrester. If the measured leakage current of the lightning arrester is too large, exceeding 500uA, and if the system voltage is excluded from being too high, the lightning arrester may have stains, moisture or aging. The larger the leakage current, the more severe the stains, moisture or aging.
The innovative integrated design of the clamp head and guide area of the high and low voltage clamp ammeter ensures high precision, reliability, and stability for uninterrupted testing throughout the year. The insulating rod is lightweight, with characteristics such as moisture resistance, high temperature resistance, impact resistance, bending resistance, high insulation, and stretchability.
This instrument is connected to an insulation rod and can be used for measuring leakage current of high-voltage lines below 60kV, online current measurement, and determining whether the zinc oxide lightning arrester is damp or malfunctioning. The instrument also has functions such as peak holding, data holding, data storage, and wireless transmission. Its dedicated high-voltage clamp can easily clamp or withdraw the measured wire by pressing or pulling out the insulation rod, saving time and speed. It is widely used in substations, power plants, industrial and mining enterprises, testing stations, electrical maintenance departments for leakage detection and field electrical operations.
The high and low voltage clamp ammeter is connected to an insulation rod and can be used for current measurement of high voltage lines below 23KV. It also has functions such as peak holding, data holding, data storage, and wireless transmission. Its dedicated clamp ammeter can easily clamp or withdraw the measured wire by pressing or pulling out the insulation rod, saving time and speed. It is widely used in substations, power plants, industrial and mining enterprises, as well as testing stations, electrical maintenance departments for current detection and field electrical operations. It can also replace the high and low voltage ratio tester, which measures the high and low voltage currents of the primary and secondary circuits separately, and then calculates the high and low voltage ratio. The insulating rod is lightweight, with characteristics such as moisture resistance, high temperature resistance, impact resistance, bending resistance, high insulation, and stretchability.
