What functions should the emergency diesel generator set have

There are many things to pay attention to when choosing to sell diesel generators. More and more comprehensive information in this area can actually be found in Beijing Borui Chenxiang Technology****. Beijing Borui Chenxiang Technology Co., Ltd. is a company specializing in the authorized sales of imported gasoline generator sets

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1) Under normal circumstances, the unit should always be in a state of ready to start, when the power supply of the two mains is interrupted, the unit should start immediately, the unit starts the delay time of 0 to 3 seconds (adjustable), and the unit can automatically start the group (a total of three times continuous self-starting function). When the mains power is restored on any road, the diesel generator set should be able to continue to run with load for about 180 seconds (adjustable), until the mains power supply is stable, then switch to the mains power supply with load, and the unit will continue to maintain 0 300 seconds (adjustable) operation and automatically shut down after cooling. (FYI:.)

Yanan diesel generator set: 4000-080-999) Yaxiaonan will answer for you).

2) There should be an interlocking device between the diesel generator set and the power system to prevent parallel operation.

3) The success rate of diesel generator set self-start is not less than 99%, the unit self-start failure, should be able to send out an alarm signal, the unit should be able to operate on the spot and in the compartment, provide a remote control panel, and the unit self-start signal is provided by the combination of the main inlet voltage relay of the low voltage of the load.

4) Adopt fixed high-speed automatic diesel generator set, and the working mode is standby. The unit should have the characteristics of fast starting, strong ability to withstand sudden load, reliable operation, good speed regulation, low failure rate, low noise, low vibration, low pollution, small size, light weight, and convenient maintenance.

5) The important components of the unit, such as engine, generator, generator controller, etc., should be provided by internationally renowned manufacturers with reliable quality and advanced technology, and the origin, manufacturer and corresponding technical specifications should be provided when bidding.

6) The unit should provide an outgoing power distribution cabinet on site, and configure a frame removable circuit breaker. The generator shall be equipped with short circuit, overload, grounding, overvoltage, undervoltage, and reverse power fault protection devices. The average time between failures of the unit is 10,000h.

7) The unit should have an independent fuel storage room to ensure a certain amount of fuel and fire safety measures.

There are many brands of emergency diesel generators, including imported units, joint venture units and domestic unit brands!

The brand of the unit is different, and its quality is different!

The brands of diesel generator sets are:

Cummins, Perkins, Yuchai, Weichai, Shangchai, Volvo, Daewoo, Mercedes-Benz MTU!

The above brands are good, it is recommended to choose the generator set according to the power consumption and usage needs!

Generally, different uses (as a common power supply or standby power supply), different power and different environments (whether to use the unit in the alpine area) and other recommended diesel generator brands are different.

In addition, users should also pay attention to choosing regular manufacturers when choosing manufacturers:

Inspect the scale of the manufacturer, corporate culture, accessories, etc., select the most satisfactory manufacturer, and ensure the quality and after-sales of the unit!

Choose the OEM factory of a well-known diesel engine manufacturer.

Inspect the manufacturer's after-sales service, accessories, etc.!

Choice of emergency diesel generator. Emergency diesel generators should generally choose high-speed, supercharged, low fuel consumption, and diesel generator sets of the same capacity. The high-speed supercharged diesel engine has a large single capacity and occupies a small space; The diesel engine is equipped with electronic or hydraulic speed regulation device, and the speed regulation performance is good; The generator should be equipped with a brushless excitation or phase compound excitation device, which is more reliable, has a low failure rate, and is more convenient for maintenance and repair; When the capacity of a single air conditioner or motor in the primary load is large, it is advisable to choose a generator set with third harmonic excitation; The machine is assembled on a common chassis with shock absorbers attached; A muffler should be installed at the outlet of the smoke exhaust pipe to reduce the impact of noise on the surrounding environment.

Emergency generator sets are generally used as backup generator sets in individual departments of medical, commercial, financial, transportation and other industries. Because blackouts are not allowed in these areas. Once the power outage will affect the business, cause economic losses, and in large medical units, if the power outage can lead to life-threatening.

Therefore, emergency generator sets are widely used as standby power sources in these units. Yuchai generator set is a famous brand product in China. High quality and advanced technology.

Yuchai diesel generators** are also more affordable. The main thing is that the technology is in place, and the use effect and life can be perfect. In particular, the emergency generator set can accurately generate electricity to provide protection for people's life, work and even life safety.

It can be used as emergency power generation equipment: in the event of a dangerous situation, the emergency diesel generator set can ensure the normal operation of the fire channel, such as fire elevator, escape indicator, fire hydrant pump, smoke exhaust fan, roller shutter door, fire alarm device, etc., emergency diesel generator set is a necessity to ensure the smooth operation of the fire channel;

Can be used as emergency network equipment and computer equipment: Some data computers and network equipment need continuous power supply to maintain normal operation, such as gas stations, supermarkets, etc. The emergency diesel generator set can play a role in maintaining normal operation after the mains power is cut off;

It can be used for emergency lighting: such as accident lighting, evacuation and escape sign lighting, aviation obstacles and guiding lights. The emergency diesel generator set can keep the emergency lighting equipment working during the mains power outage.

To avoid the loss of people and property due to power outages of lighting equipment.

With the continuous improvement of technology, the impact of the market effect, Yuchai generator set is also constantly ups and downs, we can not only consider the market when buying Yuchai generator set, the quality and power generation effect of diesel generator set is the most fundamental.

When the municipal power grid cannot provide independent power supply, diesel generator sets can be used as backup power supply to prevent losses and injuries caused by power outages.

1. The supporting equipment has a compact structure and a flexible installation location.

The supporting equipment of diesel generator set is relatively simple, with few auxiliary equipment, small size and light weight. Compared with the need to build dams for hydro turbines and the need for boilers, fuel reserves and water treatment systems for steam units, diesel generator sets have a small footprint, fast construction speed and low investment costs. Commonly used generator sets are usually independently configured, while standby generator sets or emergency generator sets are generally used in conjunction with substation and distribution equipment.

2. Start quickly and reach full power quickly.

The start of the diesel engine generally only takes a few seconds, and it can reach full load operation within 1min in the emergency state; Under normal working conditions, it reaches full load within about 5 30 min, while it generally takes 3 4 hours from start to full load of steam power unit. The shutdown process of the diesel engine is also very short, and it can start and stop frequently.

3. High thermal efficiency and low fuel consumption.

The diesel engine is currently the most thermally efficient heat engine, with an effective thermal efficiency of 30% to 46%, high-pressure steam turbine about 20% 40%, and gas turbine about 20% 30%.

4. Simple maintenance and operation.

Fewer operators are required, and maintenance during standby is easy.

5. There are many capacity levels of a single machine.

The characteristics of the emergency diesel generator set are used for emergency use, and the continuous working time is not long, and generally only needs to continue to run for a few hours (12h); The generator set is usually in a state of shutdown and waiting, only when the main power supply is all out of power, the emergency diesel generator set will start to run to supply the emergency power load, and when the main power supply returns to normal, then switch to stop. (Yanan diesel generator answer: 4000-080-999) emergency unit should choose high-speed, supercharged, low fuel consumption.

The high-speed supercharged diesel engine has a large single capacity and occupies a small space; The diesel engine is equipped with electronic or hydraulic speed regulation device, and the speed regulation performance is good; The generator should be equipped with a brushless excitation or phase compound excitation device, which is more reliable, has a low failure rate, and is more convenient for maintenance and repair; When the capacity of a single air conditioner or motor in the primary load is large, it is advisable to choose a generator set with third harmonic excitation; The machine is assembled on a common chassis with shock absorbers attached; A muffler should be installed at the outlet of the smoke exhaust pipe to reduce the impact of noise on the surrounding environment.

Fujian Yanan motor technicians believe that the temperature of cooling water should be between 75 and 90, and the maximum should not exceed 95. The method to maintain the normal working temperature of the diesel engine is as follows: when the diesel engine starts, the insulation device in front of the radiator should be turned off, so that the heat absorption of the diesel engine is greater than the heat dissipation, so that the diesel engine can heat up rapidly; If the diesel engine is overheated, the insulation device should be opened so that the heat dissipation is greater than the heat absorption, so that the cooling water temperature can be reduced to the normal range; If the diesel engine is overheated but not serious, the speed of the diesel engine can be increased to make the heat dissipation greater than the heat absorption, so that the diesel engine can be cooled; It can also be changed to a lower gear to reduce the load of the diesel engine, and at the same time increase the speed of the diesel engine to the use speed, so that the water temperature can quickly return to the normal range.