What are the operation steps of automatic automatic switching of diesel generator set?

What is the difference between a general automatic unit and a fully automatic diesel generator set? There are two ways to say the automation of generator sets, one is a fully automated unit, and the other is a general automated unit. The difference between them is that fully automatic is purely automatic and does not require manual operation; In general, part of the operation of the automatic unit needs to be completed manually.

1. The fully automated unit is also automatic plus automatic switching, which is purely automatic and does not require manual operation, but it must be realized by adding a set of automatic transfer switch cabinets on the basis of automatic control modules. It is when the power goes out, the generator set automatically detects the signal and automatically starts up to generate electricity, and then automatically closes. When the mains power comes, it will automatically open and stop automatically, and return to the initial state, waiting for the next start.

2. General automation only needs an automatic control module, when the mains power failure is detected, the generator set will automatically start and automatically generate electricity, but it will not automatically close, but manually close. When the mains power comes, the generator set will only stop automatically, but it will not open automatically, and it also needs to be operated manually.

The difference between general automatic units and fully automatic diesel generator sets is also their advantages. In addition, the generator set configuration is diverse, and the functions of different configurations are different, so users should choose the appropriate unit configuration according to their work needs!

The operation of automatic switching diesel generators has the following four points:

1. Automatic start and automatic switching power supply: when the mains power is interrupted, the mains switching circuit immediately cuts off the mains power supply circuit, and at the same time, the mains monitoring circuit makes the starting motor run through the self-starting controller, so as to start the diesel generator set. After the successful start, the oil pressure of the lubricating oil rises, when the oil pressure rises to the specified value, the oil pressure sensor is successfully started, the control circuit of the electromagnetic field valve of the lubricating oil circuit is connected, the solenoid valve opens the oil circuit of the boosting cylinder, the pressure lubricating oil of the diesel engine pushes the cylinder piston, drives the throttle handle to move in the direction of the rising speed, and under the effect of the rising speed limit controller, the diesel engine works at the rated speed.

At this time, under the action of the automatic voltage regulator, the generator outputs the rated voltage. Then, the power generation switching circuit is switched on and the diesel generator starts supplying power to the load.

2. Automatic shutdown after the mains is restored: after the mains is restored, under the action of the mains monitoring circuit, the diesel engine power supply circuit is first cut off, and then, the mains switching circuit is put into work, and the load is powered by the mains. At the same time, the self-starting controller makes the stop solenoid action, controls the throttle of the diesel engine, and the diesel generator first runs at low speed, and then automatically stops.

3. Fault shutdown and alarm: During the operation of the unit, when the temperature of the cooling water outlet reaches 95 2 minutes, the temperature controller sends out an audible and visual alarm signal through the system controller and cuts off the load, and at the same time, the shutdown electromagnet acts, and the diesel generator stops running.

4. During the operation of the diesel generator, when the oil pressure of the lubricating oil is lower than the specified value, the contact of the oil pressure low alarm sensor is closed, and the controller sends out an audible and visual alarm signal through the display alarm device, and at the same time cuts off the oil machine switching circuit, and then stops the electromagnet to run, and the diesel generator automatically stops. When the speed of the unit exceeds the rated speed, the high-cycle relay in the oil electromechanical monitoring circuit acts, and the diesel generator automatically stops.

First, the oil supply advance angle.

Adjustments. for the most economical to obtain.

Fuel consumption rate.

At. Diesel generator sets.

After 500h of operation or. Fuel injection pumps.

Regulator. When the assembly is corrected and reassembled, the oil supply advance angle is generally corrected.

Second, the valve clearance.

Adjustments. Replace the diesel generator set.

Cylinder head gasket. Piston ring.

or due to the leakage of the cylinder head gasket and the specified torque pair.

Cylinder head. When tightening, the valve clearance must be adjusted. Because the valve clearance is too large, the valve opens late and closes early (the normal situation is that the intake valve opens early and the exhaust valve closes late).

Lack of gas. The exhaust is not clean and leads to the diesel engine.

Exhaust noise. excessively large, etc.; If the valve clearance is too small, it will cause the valve to be closed loosely and ablative.

or air leaks, etc. 3. Adjustment of oil pressure.

Diesel generator set.

Lubrication method. There are generally two kinds:

Pressure lubrication. And.

Splash lubrication. If the oil pressure is too low or too high, it will affect the lubrication quality of the diesel generator set, so the oil pressure must be controlled within the specified range when the diesel generator set is working.

Self-switching cabinet (also known as ATS cabinet, dual power automatic switching cabinet, dual power automatic conversion cabinet) is mainly used for automatic switching between the main power supply and emergency power supply, it forms an automatic emergency power supply system together with the self-starting diesel generator set, which can automatically switch the load of emergency lighting, security power supply, fire-fighting equipment and other loads to the unit after the main power supply failure, and is an indispensable power facility for hospitals, banks, telecommunications, airports, radios, hotels and factories and enterprises emergency power supply and fire power supply. There are 2 ways to operate ATS automatic electrical cabinets.

1. Fully automatic operation mode.

The module is set in the "automatic" position, and the unit enters the quasi-starting state, and in the automatic state, the mains state is automatically detected and judged for a long time through the external switch signal. Once the mains power is faulty or lost, it will immediately enter the automatic start state. When the mains power calls, it will automatically switch and open the speed down and shut down.

When the mains power returns to normal, the unit will automatically trip and withdraw from the network after 3s confirmation by the system, with a delay of 3 minutes, automatic shutdown, and automatically enter the next ready state for automatic start.

First of all, turn on the power key and press the "automatic" button directly, the unit will automatically start the speed increase at the same time, when the hertz meter, frequency meter, water temperature meter display normal, he will automatically close the power transmission and grid power grid. Quasi-state automatic control, automatic detection of mains status, automatic start of the unit, automatic network investment, automatic network withdrawal, automatic shutdown, automatic fault tripping, shutdown, alarm.

2. Manual operation mode of the module.

After opening the power key, press the module "manual" key to start directly, when the unit starts successfully and runs normally, at the same time, the automation module also enters the self-test state, it will automatically enter the speed up state, after the speed is successful, the unit will enter the automatic closing and grid connection according to the display of the module.

No matter which kind of automatic cabinet operation mode is used, the diesel generator set will play the best effect.

1. Manual operation mode of the module:

After turning on the power key, press the module "manual" button to start, when the unit starts, the automation module enters the self-test state, automatically increases, and the unit will enter the automatic closing and grid connection after success.

2. Fully automatic operation mode:

When the module is set in the "automatic" position, the unit is in a quasi-starting state, and in this state, the mains power is automatically detected and judged for a long time through the external switch signal. Once the mains power is faulty and the power is lost, it will be automatically started immediately. When the mains power calls, the unit will automatically trip for ventilation, delay by 3 minutes, automatically shut down, and automatically enter the next self-starting ready state.

First of all, open the power key and press the "auto" button directly, the unit will automatically start to increase the speed at the same time, when the hertz meter, the water temperature meter shows normal, he will automatically close the power transmission and grid power grid. Quasi-state automatic control, automatic detection of mains status, automatic start of the unit, automatic network withdrawal, automatic shutdown, automatic fault tripping, shutdown, alarm.

Diesel generator set self-switching operation specification and steps:

1. Pre-launch inspection.

1. Before the inspection, for the generator set with the "self-throwing" function, in order to ensure safety, first put the generator start switch in the "manual" or "stop" gear (or remove the connecting cable between the negative pole of the battery pack and the generator), and after the inspection, be sure to restore it to the "automatic" position.

2. Check whether the oil level is within the scale line, not enough to add the same type of oil to the position within the scale line, and whether the fuel is sufficient.

3. Check whether the coolant is about 8cm below the water tank cover, not enough to add soft water to the above position.

4. Check whether the electrolyte level is about 15mm on the electrode plate, not enough to add distilled water to the above position.

5. Clean up the generator set site to ensure that the cooling and ventilation channels are smooth.

6. Make sure that the main air switch of the diesel generator set is in the "off" (off) state, and confirm whether the connection with the "mains" has been disconnected.

7. Whether the tightness of the transmission belt is appropriate.

2. Manual start.

1. After checking normal, press the manual mode, and then press to confirm that the unit starts normally, 2. If the diesel generator can not be started, it will be restarted after 30 seconds, and it will fail to start 3 times in a row, then the cause should be identified and the fault can be eliminated before it can be started.

3. After successful start-up, check whether there is abnormal noise and vibration, whether there is oil leakage, water leakage, air leakage, and whether the control screen has abnormal display. Within 10 15 seconds of start-up, whether the oil pressure reaches the normal range (60 70psl), if there is an abnormal phenomenon should be dealt with, close the total air switch of the diesel generator after normal and start power supply.

3. Manual shutdown.

1. Press the stop button on the control panel to stop the unit.

2. If there is an emergency that needs to be stopped, press the emergency stop button immediately.

3. The start and stop operation of the diesel generator automatic start control screen.

Fourth, automatic start.

1. Reset the buttons on the control screen panel.

2. Press the automatic (auto) switch, the unit enters the standby state, 3. Close the diesel generator total air switch (on) position.

4. If the "mains" power goes out, the diesel generator will start and send power to itself within 5 to 8 seconds.

5. If the diesel generator cannot start automatically, press the red emergency stop button button on the control panel to find out the cause and eliminate the fault before starting.

5. Automatic shutdown.

"mains" call, dual power conversion will automatically switch to "mains", diesel generator will automatically shut down after 3 minutes of no-load operation.