Other breakdown1, undervoltageDescription of the inverter power input part of the problem, to be checked before they can run.2, the temperature is too highSuch as motor temperature detection device, check the motor cooling; inverter temperature is too high, check the inverter ventilation.

Overload faultOverload faults include inverter overload and motor overload. It may be due to acceleration time is too short, excessive DC braking, power grid voltage is too low, overloaded and other causes. Generally by extending the acceleration time, extended braking time, check the grid voltage.

Overcurrent faultOvercurrent fault can be divided into acceleration, deceleration, constant speed over current. It may be due to the inverter acceleration and deceleration time is too short, the load changes suddenly, the load distribution is uneven, the output short circuit and other causes. At thi

Overvoltage faultThe over-voltage of the inverter is concentrated on the DC voltage of the DC bus. Under normal circumstances, the inverter DC three-phase full-wave rectified average. If 380V line voltage calculation, the average DC voltage Ud = 1.35 U line = 513V. When an overvoltage occurs, the st

Capacitor shell expansion (also known as bulging), but also a common capacitor abnormalities. It is normal for a fuel tank to expand and contract with changes in temperature. However, when a partial discharge occurs inside the capacitor or the insulation is broken down, a large amount of gas will be

Capacitor is a fully sealed device, but due to manufacturing defects and improper use of maintenance, often lead to capacitor bleed oil, the capacitor is mainly the first part of the oil seepage casing, conductive rod sealing gasket failure, resulting in oil leakage. The second is the capacitor weld

Sometimes we will encounter a rather special situation, that is, after the performance of the capacitor capacitance that is worn, but after the failure and showed no breakdown, with a multimeter test it does not show the breakdown of the characteristics of electricity The DC voltage across the measu

From full customization to today's COTSPrevious views on the continued use of hybrid circuits and modules in military systems remain valid. It is important, however, to recognize that commercial pressure on military equipment manufacturers is greater than ever, especially in terms of costs and timin

SafetyObsolete elimination of products is a very serious problem for the military industry. 30 to 50 years of project life is common, so military and aerospace equipment suppliers are constantly looking for ways to reduce risk. Hybrid circuits and modules have been a way of trying to isolate the rap

PerformanceMilitary and aerospace systems are generally designed on the basis of modular subsystems. For example, field replaceable units (LRUs) simplify service and operational support. LRU interconnection relies on standards such as MIL-STD-1553 bus interfaces. Implementing these functions in hybr