The invention discloses monitoring equipment of an intelligent
transformer, comprising an equipment cabinet, a
voltage current and
bushing insulation measurement improvised
explosive device (IED), a basic parameter measurement IED, a cooling device monitoring IED and a power box for IEDs, wherein the equipment cabinet is used for containing equipment and the power box; the
voltage current and
bushing insulation measurement IED is used for carrying out measurement on effective values of working
voltage, load current,
bushing tap current, neutral point current, and is in charge of calculation on power factors,
dielectric loss,
harmonic content,
harmonic distortion rate and other electric parameters; the basic parameter measurement IED is used for monitoring light gas and heavy gas, contents of the light gas and heavy gas, a pressure
relief valve, tap switch gears, switch oil level, iron core earth current as well as temperature,
humidity and other numbers and analog quantity in the equipment cabinet; the cooling device monitoring IED is used for monitoring the status of a cooler, winding temperature, top
oil temperature, bottom
oil temperature, ambient temperature,
humidity and other numbers and analog quantity; and the power box for the IEDs is used for providing + / -5V, + / -12V and + / -24V stabilized voltage supplies for the three IEDs. For the monitoring equipment, the functions are abundant, and a
modular design is adopted, thus being simple and easily used; and in addition, the monitoring equipment has strong applicability and good development aspects.