one. High reliability: The inverter power supply has a strong output overload capability.

    As we know, one of the important indicators to measure the reliability of a power supply is: it should have a strong ability to resist output overload. This means that even when a transient surge and overload output situation is formed due to the user's input of a large-load nonlinear load, the integrity of the power inverter can be guaranteed.

    Typical overload capacity for stationary shore power sources: 10 minutes at 125% rated load 1 minute at 150% rated load 30 seconds at 200% rated load

    When the user's overload and the duration of the overload do not exceed the above range, the power supply will always be in a normal power supply state.

two. It has strong resistance to "step" load and short-circuit output capability;

The worst working conditions that may be encountered in the operation of the power supply are that the user performs no-load «100% rated load input or cut-off operations at the power output end. The most serious situation: the output of the power supply is shorted. Due to the static shore power supply, it is equipped with a uniquely designed output current limiting circuit. Even if the user accidentally causes an output short-circuit fault, its inverter will not be damaged. The typical short-circuit output capability of the stationary shore power supply is:

In three-phase operation, the output current is limited to 160% of the nominal output current for 5 seconds.

In single-phase operation, the output current is limited to 290% of the nominal output current for 5 seconds.

three. Superior capability with three-phase unbalanced loads

    For the three-in/three-out type power supply, due to the self-adaptive phase balance adjustment circuit configured in the machine, when 100% unbalanced load is connected (one-phase no load, two-phase full load), the three-phase phase can also be ensured. The voltage difference is less than 2%, and the phase difference between the three-phase power supplies is within the range of 120°±1°. This indicator is significantly higher than similar products from other companies.

Four. High input power factor

    It is well known that the introduction of a large number of rectifier and filter loads into the mains grid will cause the grid to be "polluted", resulting in a large number of high-order harmonic currents flowing through the entire power supply system. For this reason, the overcurrent of the current flowing through the neutral line and the abnormal heating of the motor load will be caused. In order to solve the above problems: Ai Maison can provide users with the following solutions to eliminate harmonic "pollution", so as to ensure that the power supply quality of the user's power grid meets the "green power" standard:

In the static shore power supply, the optional input filter scheme is adopted to increase the input power factor from 0.8 of the general power supply to more than 0.92. Reduce the input harmonic current content by less than 10%. The input power factor of the power supply is increased to more than 0.92, which not only does not affect the power factor of the entire shipyard, but also can relatively improve the overall power factor of the factory, which indirectly saves the cost for the enterprise.

five. User-friendly structure design

   It adopts a flat in-line control board structure design that is easy for users to observe. In order to ensure the reliable connection between the plug-in boards, an anti-loosening mechanical "locking" device is arranged at the connector connection. Users only need to open the cabinet door to observe the working status of the "self-diagnosis" status monitor located on each power control board at a glance. As a result, users can quickly obtain nearly 70-90 fault alarm indications, which is beneficial to improve the maintainability of this power supply.

6. Remote start and stop control functions

If the user needs, a remote alarm device can be added to notify the operators located in the power distribution room in time.

7. Multiple communication functions

  Through the RS232 or RS485 communication interface, the user can use the computer or network terminal in the office to enter the man-machine dialogue menu operation state. Under this condition, with the help of the self-test and self-diagnosis control functions in the machine, the user can operate the power supply. Or the alarm status is displayed on the remote terminal computer network in real time. When an alarm situation is encountered, an alarm can be sent to the user in time. Through the intelligent "self-diagnosis" management system, it can provide users with more than 80 pieces of data operation parameter information and alarm information (voltage, current, frequency, neutral current, etc.). Provide users with fault analysis and statistical data, which can significantly reduce on-site maintenance time.