What Is a Power Generator?

A generator is a mechanical device that converts other forms of energy into electrical energy. It is driven by a water turbine, steam turbine, diesel engine or other power machinery to convert the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transfer it to the generator. It is then converted into electricity by a generator.

The generator is usually composed of stator, rotor,

In 1832, the Frenchman Bixie invented the hand-cranked DC generator.

Proper use and maintenance of a generator set can extend the life of the generator set:

Preparations before starting:

1. The operator of the computer room should abide by the safety operation regulations.

Working characteristics:

The main characteristics of synchronous generator performance are no-load characteristics and load operation characteristics.

Generator: can turn

Step 1: Check whether there is any disconnection, misconnection, or short circuit in the connection parts of the external wires of the generator, and measure the battery voltage at point B + with a voltmeter.

Step 2: Down the key door to the "open" position, but do not start the engine. At this time, use a voltmeter to measure the voltage at point D + and observe whether the charging indicator is bright.

Step 3: Start the engine and use a voltmeter to measure the voltage at point B + of the engine, which should reach the following value

Step 4: Turn on some loads, such as lights

Step 5: Turn on the main electrical appliances such as air conditioners and lights

When the third step is performed, the generator has no voltage output. You can take the following measures to check. For a generator with a D + point, a 2.5mm2 wire can be led from the positive electrode of the battery. After starting the engine, click the D + point with the other end instantly. (Within 1S), then use a voltmeter to measure whether there is voltage output at point B +. If so, check from the third step to the fifth step, and at the same time judge that the charging lamp circuit of the vehicle is disconnected (generally, the indicator lamp is damaged) , The instrument panel rod connector is loose, and the line is open), if there is no voltage output, the generator has a failure to generate power.

According to " 2013-2017 China Power Generation and Generator Set Industry Market Outlook and Investment Opportunity Analysis Report ". In order to regulate and manage diesel generator sets, the state has uniformly stipulated the methods for designating the names and models of diesel generator sets. According to the provisions of JB / T1403-99, the rules for the model names of units are shown in the figure.

1

2

3

4

5

6

7

The meanings of the 7 cells from left to right in the figure are as follows:
1-- Use the number to indicate the rated power output of the generator set, the unit is KW;
2-- Use letters to indicate the type of generator output current, where G is the power frequency, P is the AC intermediate frequency, S is the AC dual frequency, and Z is the DC;
3-- Use letters to indicate the type of generator set, F for land use, FC for ship use, Q for car power station, and T for trailer;
4-- Use the letters to indicate the control characteristics, when it is absent, it means manual, Z is the automatic model, S is the low noise model, SZ is the low noise automation model;
5-- Design numbers are represented by numbers;
6--Use the number to represent the deformation code;
7-Use letters to indicate environmental characteristics, when absent, it means ordinary type, and TH means warm type.
Example: 75GFS3 means a diesel generator set with a rated power of 75KW, AC power frequency, land use, low noise, and design number 3. ^[8]