Fujian Willda Machinery Electrical Co., Ltd.
Main products:Motor,Casting
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  • Contact Person : Mr. Run Kolin
  • Company Name : Fujian Willda Machinery Electrical Co., Ltd.
  • Tel : 86-0593-6954899
  • Fax : 86-0593-6986899
  • Address : Fujian,Fu'an,Will Mansion, Qinxiyang Industrial Area, Fuan, Fujian, China.
  • Country/Region : China
  • Zip : 355000

Weichai 18.75KVA diesel generator set

Weichai 18.75KVA diesel generator set
Product Detailed
Weichai Series Diesel Generator Sets 1, 10-2000kW; 12.5-2500kVA 2, 1500/1800 r/min; 50/60 Hz 3, 220-440V 4, Water-cooling

Weichai Diesel generator

A diesel generator is the combination of a diesel engine with an electrical generator (often called an alternator) to generate electrical energy. Diesel generating sets are used in places without connection to the power grid, as emergency power-supply if the grid fails, as well as for more complex applications such as peak-lopping, Grid Support and export to the power grid. 

Weichai Diesel generator sets

The packaged combination of a diesel engine, a generator and various ancillary devices (such as base, canopy, sound attenuation, control systems, circuit breakers, jacket water heaters and starting system) is referred to as a "generating set" or a "genset" for short.

Generator sets sizes range from 8 to 30 kW (also 8 to 30 kVA single phase) for homes, small shops & offices with the larger industrial generators from 8 kW (11 kVA) up to 2,000 kW (2500 kVA three phase) used for large office complexes, factories. A 2,000 kW set can be housed in a 40ft ISO container with fuel tank, controls, power distribution equipment and all other equipment needed to operate as a standalone power station or as a standby backup to grid power. A combination of these modules are used for small power stations and these may use from one to 20 units per power section and these sections can be combined to involve hundreds of power modules. In these larger sizes the power module (engine and generator) are brought to site on trailers separately and are connected together with large cables and a control cable to form a complete synchronized power plant.

Supporting main utility grids

In addition to their well known role as power supplies during power failures, diesel generator sets also routinely support main power grids worldwide in two distinct ways:

Peak lopping

Maximum demand tariffs in many areas encourage the use of diesels to come on at times of maximum demand. In Europe this is typically on winter weekdays early evening peak when cooking and lights are on as people come home—around 5:30–7:00 PM, whereas in the United States this is often in the summer to meet the air conditioning load.

Grid support

Emergency standby diesel generators, for example such as those used in hospitals, water plant, are, as a secondary function, widely used in the US and the UK (Short Term Operating Reserve) to support the respective national grids at times for a variety of reasons. This usually occurs during, for example, the sudden loss of a large conventional 660 MW plant, or a sudden unexpected rise in power demand eroding the normal spinning reserve available.

This is extremely beneficial for both parties - the diesels have already been purchased for other reasons; but to be reliable need to be fully load tested. Grid paralleling is a convenient way of doing this. This method of operation is normally undertaken by a third party aggregator who manages the operation of the generators and the interaction with the system operator.

During normal operation in synchronization with the electricity net power plants are governed with a five percent droop speed control. This means the full load speed is 100% and the no load speed is 105%. This is required for the stable operation of the net without hunting and dropouts of power plants. Normally the changes in speed are minor. Adjustments in power output are made by slowly raising the droop curve by increasing the spring pressure on a centrifugal governor. Generally this is a basic system requirement for all power plants because the older and newer plants have to be compatible in response to the instantaneous changes in frequency without depending on outside communication.

Main Assemblies

1, Diesel Engine (Weichai Brand)

2, Generator/Alternator (With AVR)

3, Standard Control Panel (Ordinary Type, LCD Type, ATS Type )

4, Common base(With Base Oil Tank)

Standard Accessories

1, Starting Battery and Connector Wire

2, The Vibration Reduction Rubber Gasket

3, Silencer

4, Exhaust Elbow

5, 8-hour Oil Tank

6, Spare Part Case

7, Technical Data

8, Water Tank Radiator,The belt-driving Cooling Fan ,Fan Safety Shield

9, Dry-type Air Filter

10, Fuel Filter

11, Lubricating Oil Filter

12, Starting Motor

13, Self-charging Generator

14, Frequency Meter/Water-thermometer/Oil Pressure Gauge/Battery Voltmeter

Optional Accessories

1, Preheating Start System

2, Diesel Engine Thermal Protection System

3, Jacket Heater

4, Speeding, High Temperature, High Oil Temperature, Low Pressure Alarm System

5, Breaker

6, Antifreeze Liquid

7, Ground Wire

8, Water Temperature Safety Device

9, Machine Oil

Service Conditions

-- Ambient Temperature: -25°C~40°C

-- Altitude: not exceed 1000 Meter

-- Rated Voltage: 230/380V or any voltage between 220-440V

-- Rated Frequency: 50Hz/60Hz

-- Insulation Class: B/F/H

-- Working Duty: S1(Continuous)

-- Humidity: Lower than 95%

Weichai 18.75KVA diesel generator set

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