名称：Signal communication

Product requirements and challenges

1 、 automation function

Auto start and auto load

The unit receives automatic or remote start command and automatically starts, and the success rate is more than 99%. A startup cycle consists of three starts, and the intermittent time between two starts is 10-15 seconds;

When the unit is successfully started, it should automatically load when the oil pressure reaches the specified value, and the load time is usually 10 seconds;

After the failure of the three start, the generator will no longer start and send out the start failure alarm signal. If the standby unit should be able to transfer the start command to the standby unit.

Automatic unloading stop

After receiving the automatic or remote control instruction, the unit can automatically unload and stop the machine. There are two kinds of shutdown modes: normal stop and emergency shutdown. Normal shutdown procedure: after disconnecting the main circuit (disconnecting the air switch or converting the ATS to the mains side), the emergency shutdown step is to cut off the main circuit and the fuel circuit at once.

The automatic protection unit has low oil pressure, over voltage, over speed, overload, short circuit and phase protection. The water cooling unit has high water temperature protection function, and the air cooling unit has high cylinder temperature protection function.

2 、 remote monitoring function

To meet the requirements of remote monitoring technology with telemetry, remote communication and remote control functions, operation parameters, real-time remote monitoring the operation status of the unit, when the unit is abnormal or serious fault can automatically alarm to the monitoring center, and can realize remote control unit. Able to provide standard communication protocols.

3, serial and parallel functions

Serial backup function: it can realize the automatic switching function between the city electricity and the diesel generator set with the ATS, or the double standby switching function between the two diesel generator sets.

Combined capacity expansion: two or more three-phase units with the same specifications and models, and meet the stability of parallel operation within the rated power range of (20-100)% under rated power factor. In order to improve the reasonable distribution accuracy and operation stability of active power and reactive power, it is required that the diesel engine governor in the unit has a steady speed regulation in the range of (2-5)%. The voltage regulating device in the control box (screen) can adjust the steady voltage regulation rate in the range of 5%.

4, working conditions

It can be operated at an altitude of less than 3000 meters;

The lower limit of the environmental temperature is -15C degrees, and the upper limit is 40C degrees. Other environmental units can be used.

5, stable performance, strong reliability

The average failure interval of the unit is not less than 2000 hours.

6, convenient refueling facilities and protective measures

The unit is equipped with an external refueling system and is equipped with a lock function;

A large tank is usually required to operate for 12-24 hours.

Solution

Generator performance stable, with low noise design, equipped with PLC-5220 control system with AMF function, and connected by ATS, to ensure the communication stations in the main power supply once off, replace the power supply system must be able to provide the power immediately.

advantage

• a full range of products, programs to provide, reducing the user's technical requirements, so that the use and maintenance of units easier and more simple;

The control system has the AMF function, can start automatically, and has automatic stop and alarm function under many monitoring;

• optional ATS, small units can be selected units built-in ATS;

• ultra low noise power generation, 30KVA units below the noise level of 7 meters, 60dB (A) below;

• stable performance, the average failure interval of the unit is not less than 2000 hours;

The unit is small in size and can be equipped with some devices to meet the requirements of cold areas and high temperature areas;

• special requirements for some customers can be customized, designed and developed.