Transformer Core Grounding Current Tester

Transformers are the most important electrical equipment in a power system. A fault during operation can have serious consequences for the power system. A normally functioning transformer core is grounded at a single point. If two or more points are grounded simultaneously, a current loop will form between the core and the ground, with a maximum current reaching tens of amperes . This can cause localized overheating or even burnout of the core.
This instrument is suitable for testing the leakage current of the core and clamps of electrical equipment such as transformers and reactors in substations and power plants . It can quickly and promptly detect latent faults in transformers and is an important tool for ensuring the safe operation and normal maintenance of transformers. It can also be used for testing the current, harmonics, and leakage current of lines or equipment in fields such as communications, meteorology, railways, oil fields, construction, metrology, scientific research and teaching units, and industrial and mining enterprises .

1) This instrument consists of a handheld main unit and a special current clamp.
2) Applicable to measuring transformer core grounding current, harmonics, interharmonics, total harmonic rate, leakage current, frequency, waveform, etc. in substations and power plants.
3) It adopts a 3.5-inch color LCD screen, which can display the magnitude and waveform of the measured current in real time . It has a Chinese graphical interface and is easy to operate.
4) The special current clamp is made of a special alloy with double-layer magnetic shielding technology, which minimizes the influence of external magnetic fields and has strong anti-interference ability, ensuring high precision, high stability and high reliability of continuous measurement all year round.
5) Non-contact measurement , no need to disconnect the circuit under test , safe and fast.
6) The whole machine adopts 32-bit high-speed DSP and FFT transformation, digital filtering and other technologies, which have strong anti-interference ability and ensure data accuracy and reliability .
7) Built-in high-capacity lithium battery, with automatic shutdown time set and customizable sample number editing for convenient on-site use . Under normal working conditions, it can work continuously for more than 8 hours.
8) The test procedure is simple and efficient, the instrument measures automatically, and the waveform is displayed .
9) The menu is simple and user-friendly , and the data charts are clear and easy to read, and can be clearly displayed in sunlight.
10) The instrument has a perpetual calendar and stores up to 104 sets of data , and the data is not lost when the instrument is turned off.