Jet Power Generator's Electrical Generator

1.

GB725 - domestic diesel engine model according to the national standards

82 the provisions of the internal combustion engine model composed of four content.

The cylinder number, stroke type, cylinder arrangement, cylinder diameter structure features and USES symbols;

After modification on the structure and properties changes to distinguish the symbol.

GB726 - domestic internal combustion engine cylinder number according to the national standards
65 compiled:
1)

Internal combustion engine cylinder number, use the continuous sequence number;
(
2)

Vertical type internal combustion engine cylinder number starts for the first cylinder crankshaft free-end, Ordinal Numbers to the power output end;
(
3)

V type internal combustion engine around two columns, or so the column is identified by the power output end position, cylinder Numbers from the right column free for the first cylinder, end power output in turn number, right column after the row, and from the left column free end continuous row cylinder number to the left.

At present domestic some diesel generators cylinder number method does not quite agree with the national standard.

Some foreign imports of diesel engine cylinder Numbers also not uniform.

In actual work, the regulations of the product specification shall prevail.

Below illustrates the meaning of the domestic diesel engine model: the machine full name: 12, v-shaped arrangement, four stroke, cylinder diameter 135 mm, water-cooled diesel generators.
2.

Imported diesel engine model meaning and technical performance (
1)

NT series diesel generators model meaning and technical performance (1) the model is a 855 - meaning NTA
C360 type diesel engine, which is by the United States (
康明斯)

Engine company and chongqing automobile engine factory joint production, mainly used for generating set.

N how power output of 235 ~ 475 HP;

K how power output of 450 ~ 1800 HP.

The engine is: 6 cylinder, four stroke, pressurization, high-speed, water-cooled diesel engine.
(2) technical performance data (
2)

D399 type diesel engine D399 type diesel engine is the caterpillar (
Catarpillar)

Design and manufacture of tractor company, its diameter cylinder piston stroke is 158 x.
75毫米×
203.

2 mm, its model meaning: (1) from the left the first English letter D or G, said engine types: D—
On behalf of the diesel engine;
G—
On behalf of the natural gas engine.
(2) sitting up the first number & other;
3'

For the engine series number, called & other;
300'

Type (second from left, three digital itself has no meaning, only to distinguish the number of the engine cylinder, which is 99 & ndash;
On behalf of the cylinder;
98 -
On behalf of 12 cylinder;
79 -

On behalf of the eight cylinder (4) English letters & Numbers behind other
TA”
Or & other
NA”

, said the engine air way, i. e. , & other;
TA”
—
Exhaust gas turbo;
“
NA”
—
Natural gas.
(
3)
MB -
Bb type diesel engine MB - 820

820 bb type diesel engine is made in German Benz company, it is 12 V type cylinder and the cylinder diameter is 175 mm exhaust turbocharged diesel engine, the output power rating of 654.
4kW(
890PS)
。
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The first machine to produce power generator manufacturers, the china generator factory power equipment wholesale was invented in outdoor power equipment manufacturers in power equipment supplier by generator manufacturers and was subsequently improved.

There are two kinds of generator power general situation 1.

Partial discharge, the main generator partial discharge are mainly in the winding insulation of internal discharge.

End three kinds of corona discharge and slot discharge, this is because under the action of electric field, the insulation system of insulator electric field intensity to breakdown voltage of local area.

Discharge in parts, but only partial, and not through the insulation.

Short-term the stator winding of stator winding or joint fracture discharge: street fracture caused by arc discharge.
For the failure discharge.
The discharge of great harm.

Electric power generation mechanical and electrical corrosion corrosion occurred in generator slot of nail wire surface and core parts of a corrosion, lighter when make wire rod anticorona layer and the insulating surface granulation white dots.

When serious destruction anticorona layer, the main insulation surface pitting by eating, even result in wire rod and power loss.

Generator parts of electric corrosion, generally has two kinds: one kind is occurred between the anticorona layer and stator slot, usually referred to as the outer corrosion, another kind is occurred between the anticorona layer and the main insulation, usually referred to as the internal corrosion.

Generator to produce electricity corrosion reason mainly has: 1, ideas groove not spray low-resistance semiconductor 2 before logoff.

Article use of electricity is unqualified, the grass and the matter of 3.

Stator line bar fixed mode is not standard 4.

The size of the wire rod peace straight degree is not standard, disc tolerance is not in conformity with the requirements, etc.

Due to these reasons, nail line anticorona generator notch part layer surface and the loss of electrical contact between the stator slot wall and produce capacitive discharge.

And because of its capacity is big, in a discharge is the edm and the temperature of several hundred to thousands of degrees c.

At the same time, discharge the air ionization produced by ozone and oxygen in the air, water chemistry, corrosion on wire rod and the core, this is called electric corrosion.
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