How Long to Replace Filters of Diesel Generator
by Starlight Generator dieselgeneratortechStarlight Power shares some common problems of diesel generator set.
1. Impact of different
climatic conditions on the operation of diesel generator sets:
Rainwater
Dust and sand
Salt water and mist at
the beach
The air contains
corrosive gases such as sulfur dioxide.
2. The composition of
the diesel generator set:
Diesel engine, AC
generator, controller. Other components: base, base fuel tank, radiator, water
tank, recoil pad, anti-speaker, silencer, sound attenuated enclosure and other
components.
3. How long to replace
three filters of diesel generator?
Air filter: 1000 hours,
the replacement cycle can be shortened in a different environment.
Fuel filter: 50 hours
replacement for the first time , usually 400 hours later. If the quality of the
diesel used by users is not good and the
replacement cycle is shortened.
Oil filter: 50 hours of
replacement for the first time, usually replacement after 200 hours.
4. How to identify the
authenticity of the engine?
Appearance: For
professionals who are familiar with the engine, the authenticity of the engine
can be distinguished by the appearance, color, and overall color difference of
the engine.
Identification: The
diesel engine has the corresponding brand logo label.
Nameplate resolution:
The nameplate on the engine is marked with the engine number. The cylinder and
oil pump also have corresponding codes. Call the original factory to confirm
the code, you can know the authenticity of the power.
5. AC Generator IP
introduction
I represents the grade
to prevent the entry of solid foreign matter, the highest level is 6;
P stands for the level
of water ingress prevention, the highest level is 8.
For example, protection
class IP56, IP55, etc. (D.NJ Power generator protection level is IP56)
6. Alternator insulation
level introduction
The insulation grade of
the alternator is divided according to the heat resistance grade of the
insulation material used, and is generally divided into 5 levels:
Class A 105 degrees
Class E 120 degrees
Class B 130 degrees
Class F 155 degrees
H class 180 degrees
The theater level of the
D.N Power generator is Class H.
7. Noise level
introduction
30 to 40 decibels is an
ideal quiet environment. More than 50 decibels will affect sleep and rest. More
than 70 decibels will interfere with the conversation and affect work
efficiency. A long-term living environment with a noise of more than 90
decibels can seriously affect hearing and neurasthenia, headaches, and elevated
blood pressure. If suddenly exposed to a noise environment of up to 150
decibels, the auditory organs will be acutely traumatized, causing rupture of
the tympanic membrane and loss of hearing in both ears. In order to protect the
hearing, the noise should be controlled not more than 90 decibels; in order to
ensure work and study, the noise should be controlled not to exceed 70
decibels. To ensure rest and sleep, the noise should be controlled not more
than 50 decibels.
8. The purpose of
parallel operation of diesel generator sets
Improve power supply
reliability and achieve uninterrupted power supply.
9. The role of ATS
ATS is a switch between
two sets of switch contacts for mains power and power generation, one set for
power generation, one set is for mains power. Automatic switching can be
realized through the instruction of the controller.
10. Fuel consumption
calculation
Fuel consumption (L/h) =
diesel rated power (kw) X fuel consumption rate (g/kwh) / 1000 / 0.84 (The
density of diesel 0# is 0.84kg/L)
11. Diesel generator set
debugging steps
Diesel engine
inspection---generator inspection- no-load debugging-loading debugging-filling
commissioning report-cleaning site
12. Generators can be
divided into several categories from energy
Nuclear, hydraulic,
wind, firepower. The firepower is divided into coal, diesel, gasoline, gas, and
biogas. The generators we operate now are mainly diesel generators. Diesel is
divided into light diesel (0# diesel, commonly used in high-speed diesel engines)
and heavy oil (120#, 180# diesel, commonly used in medium-speed diesel engines
and low-speed diesel engines).
13. The main function of
control system
With manual, automatic,
test shutdow
With various security
features
Memory of various faults
in operation
LED fault display alarm
Display voltage,
current, frequency, etc.
Can be connected to a
computer, but the controller needs to have RS232, 485 port
14. What happens when
diesel generating sets are overloaded for a long time?
Genset is usually not
overloaded during operation, but can withstand short-term overloads. If the
overload time of the unit is too long (exceeding the rated power), Some
conditions may occur.
Include:
Cooling system
overheating
Generator winding
overheating
Decomposition of
lubricating oil concentration causes oil pressure to be too low.
15. What happens if the
unit load is too low?
If the unit is running
at a low load for a long time, the water temperature rises less than the normal
temperature, the viscosity of the oil is large, and the friction becomes large.
The oil that should be burned in the cylinder causes a paint surface to form on
the cylinder head due to heating. If the low load persists, blue smoke may
appear, the paint surface of the cylinder head gasket needs to be removed, or
replace the cylinder head gasket.
16. What should pay
attention to when installing the exhaust system?
Generator set has its
standard configurations, such as industrial muffler, flexible exhaust
connection, and elbow. User can install exhaust system according to the
supporting facilities provided by OEM manufacturer. However, you need to pay
attention to the following points during installation:
1. Make sure the back
pressure is lower than the maximum set (usually, not lower than 5Kpa.)
2. Fixed exhaust system
to avoid transverse and longitudinal pressure.
3. Leave room for
contraction and expansion
4. Leave room for
vibration
5. Reduce exhaust noise
17. When the diesel
engine temperature is too high, is it feasible to add cooling water
immediately?
Absolutely not, you need
to wait until the engine is naturally cooled to normal temperature before
adding cooling water. If the cooling water is added to the diesel engine under
the conditions of lack of water and is overheating, the cylinder head, cylinder
liner, and cylinder block will be cracked due to the drastic change of cold and
heat, which will cause serious damage to
the engine.
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Created on Jun 12th 2019 23:07. Viewed 239 times.