The role of the generator is the power of the diesel engine into electricity, directly related to the output power quality and stability. Stator coils were originally used are all copper, but with the improvement of wire technology, there have been copper clad aluminum core. Different from the copper-plated aluminum, copper-clad aluminum wire is a special mold in the cable forming copper clad aluminum, Generators copper than copper thick. Generator stator coil with copper clad aluminum wire in the performance is not much difference, Generators but the service life than the copper strand stator coil short. If you are using all-aluminum coil, the service life is even shorter.
Generator diesel engine and unit based on the technical knowledge, as early as a few years ago we questioned the form of the popular release, is part of the user request to re-issued, Generators due to the technology has been updated and development, the following is only for reference:
Which six systems does the generator set base equipment include? A: (1) oil lubrication system; (2) fuel system; (3) control and protection system; (4) cooling and cooling system; (5) exhaust system; (6) starting system;
2, why do we recommend in the sales work of the use of professional companies recommended oil? A: The oil is the blood of the engine, once the customer use the unqualified oil will lead to the engine bearing bite killed, gear teeth, crankshaft deformation and other serious accidents, Generators until the whole machine scrapped. Specific oil selection and use of attention to the relevant articles in this edition.
3, why the use of a new machine after a period of time need to replace the oil and oil filter? A: The new machine in the run-in period inevitably have impurities into the oil pan, so that oil and oil filter material or chemical change qualitative change.
4, why do we require customers to install the unit, the exhaust pipe to tilt down 5-10 degrees? A: mainly to prevent rain into the smoke pipe, Generators leading to major accidents.
5, the general diesel engine are equipped with manual oil pump and exhaust bolts, its role is what? A: Used to remove air from the fuel tubing before launching.
6, generator automation grade how points? A: manual, since the start, since the start plus automatic electricity conversion cabinet, long distance three remote (remote control, telemetry, remote monitoring.)
7, why the generator outlet voltage standard is 400V instead of 380V? A: Because the line after the outlet voltage drop loss.
8, why the requirements of the use of generating units must air smooth? A: The diesel engine's output is directly affected by the amount of air inhaled and the air quality, Generators and the generator must have sufficient air to cool. So the use of the site must be air smooth.
9, why the installation of oil filters, diesel filters, oil and water separator should not use the tools to spin the above three too tight, but only hand to do not leak to oil? A: Because if the rotation is too tight, the ring by the bubble and the body under the effect of warming, will be thermal expansion, Generators resulting in a lot of stress. Resulting in damage to the filter housing or separator shell itself. More serious is the damage caused by the body of the body so that can not be repaired.
10, how to identify fake and shoddy domestic diesel engine? A: first check whether the factory certificate and product certification, they are the diesel engine factory "proof of identity" is necessary. And then check the certificate on the three numbers 1) nameplate number;
2) body number (in kind on the flywheel end of the mechanical processing of the plane, the font is convex); 3) pump nameplate number. The three numbers and the actual number on the diesel engine to check, must be accurate. Such as the discovery of doubt can be the three numbers reported to the factory verification.
11, the operation of electric power to take over the generator, the first three points to verify the main points? A: 1) verify the real useful power of the unit. Generators And then determine the economic power, and standby power. Approved units really useful power method: diesel engine
12 hours rated power multiplied by 0.9 to obtain a data (kw), if the generator rated power is less than or equal to the data, the generator rated power as the unit real useful power, Generators if the generator rated power is greater than the data, then This data must be used as the real useful power of the unit.
2) to verify which units with self-protection function. 3) verify the unit's power wiring is qualified to protect the ground is reliable, three-phase load is basically balanced.
12: There is a lift starter motor for 22KW, should be equipped with much of the generator? A: 22 * 7 = 154KW (elevator with a direct load start models, instantaneous start current is generally rated current of 7 times,
In order to ensure that the elevator for uniform movement). (That is, at least with 154KW generator sets)
13, the optimal use of power generating units (economic power) how to calculate? A: P Best = 3/4 * P rated (ie 0.75 times the rated power).
14, the state provides the general generator unit engine power should be much less than the power of the generator? A: 10 ℅.
15, and some generators engine power with horsepower, horsepower and the international unit kilowatt between how to convert? A: 1 horsepower = 0.735 kilowatts, 1 kilowatts = 1.36 horsepower.