If the previous transformer tester was the equipment's
The "mining stray current leakage tester" you mentioned is typically known in the industry as the "mining stray current tester" (or tester).
This is a portable safety testing instrument specifically designed for hazardous environments such as underground coal mines. If the previous transformer tester was the "physique" of the testing equipment, then this instrument is the "minefield sweeper" underground, specifically used to detect hidden "leakage" hazards on rails, water pipes, and other conductors.
⚙️ Core Uses and Importance
In underground coal mines, due to the power supply system, electric locomotive operation, and other reasons, conductors such as rails, water pipes, and cable sheaths can generate an irregular leakage current, also known as "stray current".
Fatal Hazard: When this stray current encounters a poorly contacted conductor gap, it can easily produce electric sparks. In mines with high gas concentrations, this can potentially trigger serious accidents such as premature detonation of electric detonators or gas and coal dust explosions.
Core Function: This instrument is used to accurately measure the stray current and voltage on these conductors, helping miners detect and eliminate these invisible "ignition sources" in advance, ensuring the safety of underground operations.
