Diesel Engine Driven Power Plant of 300kVA with Silent Canopy for Electric Supply

Product Description

Company Profile

Type	Micro-Computer Control Automatic Diesel Generator
Stroke	Four Stroke
Output Type	AC Three Phase
Cooling Method	Water Cooling
Landuse Type of Unit	Low Noise Automation Type
Usage	Common Units, Standby Unit, Emergency Crew

Weifang Sunny Power Machinery Co., Ltd. is located in China Power Capital-Weifang City, owning Chinese leader and world famous diesel engine manufacturers.
Having professional and experienced workers, supported by strong technology and advanced equipments, we successfully formed strict and perfect production procedure from design, production, testing, to after-service, which guarantee the stable quality and technology innovation. We have been approved by ISO9001 and CE.
Owing to good quality and stable performance, we have been working with clients in long term worldwide. Our main markets cover East European countries, American counties, Asia, Africa, and Australia etc.

Product Description

Main factors of diesel generator set selection
When customers select a diesel generator set, the most critical information to understand mainly covers four core aspects: power requirement matching, performance and reliability, fuel efficiency and operation cost, and after-sales support.
1. Power Requirement Matching
Rated Power & Standby Power: Confirm the generator's rated power (for long-term continuous operation) and standby power (for emergency short-term use, usually 10%-15% higher than rated power) to ensure it matches the actual load demand (e.g., total power of equipment to be powered).
Load Type: Clarify if the load is resistive (e.g., heaters), inductive (e.g., motors), or capacitive (e.g., capacitors), as inductive loads require higher starting power and may need a generator with stronger overload capacity.
2. Performance & Reliability
Engine Brand & Quality: Well-known engine brands (e.g., Cum…, Perk…, Vol…) usually have better durability and lower failure rates; understand the engine's service life and maintenance cycle.
Generator End Type: Choose between brushless alternators (more stable, lower maintenance) and brushed alternators (lower cost but higher maintenance frequency) based on usage scenarios.
Control System: Check if the control panel supports functions like automatic start/stop, load monitoring, fault alarm (e.g., low oil pressure, high water temperature), which are essential for unattended or emergency use.
3. Fuel Efficiency & Operation Cost
Fuel Consumption Rate: Compare the fuel consumption per kilowatt-hour (L/kWh) at rated load, as it directly affects long-term operation costs; note that fuel consumption varies with load rate (usually lowest at 70%-80% load).
Fuel Type Compatibility: Confirm if the generator is compatible with local diesel types (e.g., summer/winter diesel with different viscosity) to avoid engine damage.
4. After-Sales Support & Compliance
Local After-Sales Service: Ensure there are nearby service centers or suppliers providing timely maintenance, spare parts replacement (e.g., filters, oil), and technical support.
Certifications & Standards: Verify compliance with local standards (e.g., ISO, CE, EPA) for safety, noise, and emissions, especially for generators used in residential areas or industrial zones with strict environmental requirements.




Maintaining a diesel generator set focuses on preventive checks and timely component replacement to avoid unexpected failures, especially during emergency use. Below are practical, actionable maintenance tips categorized by frequency and key systems.
1. Daily Maintenance (Before/After Each Use)
Daily checks are quick but critical to catch minor issues early.
Visual & Oil Checks: Inspect engine oil level with the dipstick (ensure it's between "MIN" and "MAX" marks). Also check for oil leaks around the engine, hoses, or gaskets.
Coolant Level: Verify the coolant level in the expansion tank (avoid opening when the engine is hot to prevent scalding). Top up with the correct coolant type if low.
Fuel System: Check the fuel tank level and ensure the fuel valve is open. Drain any water or sediment from the fuel filter's drain valve (water in fuel causes engine misfires).
Battery Status: Inspect battery terminals for corrosion; clean them with a wire brush if needed. Check the battery's charge level (use a multimeter for 12V/24V systems-healthy voltage is ~12.6V/25.2V when off).
Run Test: After starting, let the generator run at no-load for 5-10 minutes. Listen for abnormal noises (e.g., knocks, squeals) and check for warning lights on the control panel.
2. Weekly/Monthly Maintenance (For Regularly Used Units)
For generators used 2-3 times a week, these checks prevent component wear.
Air Filter Inspection: Remove the air filter and check for dirt, dust, or debris. Tap it gently to clean light dust; replace it if it's heavily clogged (clogged filters reduce engine power and fuel efficiency).
Belt Tension: Check the alternator and water pump belts. Press down on the middle of the belt-normal deflection should be 10-15mm. Tighten or replace loose/worn belts (cracked belts cause system failures).
Control Panel Test: Activate the "auto start" function (if equipped) to ensure it triggers correctly. Test fault alarms (e.g., low oil pressure, high temperature) to confirm they work.
Fuel Quality: Add a fuel stabilizer if the generator uses stored diesel (prevents fuel oxidation and sludge buildup, especially for diesel stored over 1 month).
3. Quarterly/Annual Maintenance (Deep Checks)
These tasks require more time but extend the generator's lifespan significantly.
Oil & Filter Replacement: Drain old engine oil (when warm, for complete drainage) and replace it with oil that meets the manufacturer's specs (e.g., 15W-40 for most diesel engines). Replace the oil filter at the same time.
Coolant System Flush: Every 1-2 years, drain the entire coolant system and flush it with clean water. Refill with fresh coolant (mix coolant and water at a 50:50 ratio for anti-freeze and anti-corrosion protection).
Fuel System Service: Replace the fuel filter (primary and secondary, if applicable) to prevent fuel contamination. Clean the fuel tank's interior if sediment buildup is visible.
Alternator Inspection: Check the alternator's wiring connections for tightness. Inspect the brushless alternator's slip rings (if applicable) for wear; clean them with fine sandpaper if dirty.
Load Bank Test: Conduct a load bank test (30%-50% of rated load for 1-2 hours) every 6 months. This prevents "wet stacking" (unburned fuel buildup in the engine) and ensures the generator can handle full load when needed.
4. Long-Term Storage Maintenance (For Infrequently Used Units)
If the generator will be stored for over 3 months, take these steps to avoid damage:
Drain Fuel: Empty the fuel tank or add a long-term fuel stabilizer (follow the stabilizer's dosage instructions).
Engine Protection: Remove the spark plugs (if applicable) and spray fogging oil into the cylinders to prevent rust.
Battery Care: Disconnect the battery and charge it monthly to avoid deep discharge (or use a trickle charger for continuous maintenance).
Cover & Clean: Clean the generator's exterior with a damp cloth. Cover it with a waterproof, breathable cover to protect against dust and moisture.

Diesel Generator Set Selection Checklist for Customers
Check Category	Key Check Items	Verification Notes (For Customer to Fill)
1. Power Requirement Matching	1. Confirm generator's rated power (kW/kVA)
	2. Confirm generator's standby power (kW/kVA)
	3. Calculate total power of equipment to be powered (match with rated power)
	4. Identify load type (resistive/inductive/capacitive)
	5. Confirm if overload capacity meets inductive load starting needs
2. Performance & Reliability	1. Record engine brand (e.g., Cum..., Perk….)
	2. Ask for engine's expected service life and recommended maintenance cycle
	3. Confirm generator end type (brushless/brushed)
	4. Check control panel functions (auto start/stop, load monitoring, fault alarm)
	5. Verify cooling system type (air-cooled/water-cooled) and adaptation to local climate
3. Fuel Efficiency & Cost	1. Obtain fuel consumption rate at rated load (L/kWh)
	2. Ask for fuel consumption data at 70%-80% load (optimal efficiency range)
	3. Confirm compatibility with local diesel type (summer/winter grade)
	4. Estimate monthly/annual fuel cost based on usage hours
4. After-Sales & Compliance	1. List nearby after-sales service centers and response time
	2. Confirm availability of key spare parts (filters, engine oil, spark plugs)
	3. Check certifications (ISO, CE, EPA, or local standards)
	4. Verify noise level (dB) and compliance with on-site noise requirements
	5. Confirm warranty period (engine/generator set) and coverage scope
Customized Diesel Generator Maintenance Schedule Table
Maintenance Frequency	Maintenance Items	Specifications/Notes	Recommended Tools/Materials
Daily (Before/After Use)	1. Check engine oil level	Ensure oil is between "MIN" and "MAX" marks on the dipstick; use oil specified by the generator manufacturer (e.g., 15W-40 for most diesel engines)	Dipstick (built-in)
	2. Inspect coolant level	Check expansion tank; avoid opening when the engine is hot. Top up with 50:50 coolant-water mixture if low	Coolant (matching generator model), funnel
	3. Examine fuel system	Check fuel tank level; drain water/sediment from fuel filter drain valve	Fuel filter wrench (if needed)
	4. Inspect battery status	Check terminals for corrosion; measure voltage (12V system: ~12.6V when off; 24V system: ~25.2V when off)	Multimeter, wire brush (for cleaning terminals)
	5. Run test & noise check	Run at no-load for 5-10 minutes; listen for abnormal knocks/squeals; check control panel warning lights	None (visual/auditory inspection)
Weekly/Monthly (Regular Use)	1. Clean/check air filter	Tap to remove light dust; replace if heavily clogged (clogged filters reduce power/fuel efficiency)	Compressed air (for cleaning), new air filter (matching model)
	2. Adjust/check belt tension	Press belt middle: normal deflection 10-15mm. Tighten or replace cracked/worn belts	Belt tension gauge, wrench
	3. Test control panel functions	Activate auto start/stop; trigger fault alarms (low oil pressure, high temp) to confirm operation	None (panel button operation)
	4. Add fuel stabilizer	Use 10-15ml stabilizer per 10L diesel if storing fuel over 1 month	Fuel stabilizer (brand: STA-BIL or manufacturer-recommended)
Quarterly	1. Replace engine oil & oil filter	Drain oil when warm; install new filter (torque to manufacturer specs: usually 20-25 N·m)	Oil drain pan, oil filter wrench, new oil filter, engine oil
	2. Clean fuel filter	Replace primary/secondary fuel filters; clean filter housing to remove sediment	Fuel filter (model-specific), filter wrench
	3. Inspect alternator connections	Tighten loose wiring; clean slip rings (if brushed) with fine sandpaper	Screwdriver, fine sandpaper (400-grit)
Annual	1. Flush coolant system	Drain old coolant; flush with clean water; refill with 50:50 coolant-water mixture	Coolant drain pan, garden hose, new coolant
	2. Conduct load bank test	Run at 30%-50% rated load for 1-2 hours to prevent wet stacking	Load bank (rent or hire professional service if needed)
	3. Inspect engine gaskets/hoses	Check for leaks; replace cracked hoses or leaking gaskets	New hoses/gaskets (model-specific), wrench
Long-Term Storage (Over 3 Months)	1. Treat fuel system	Empty tank or add long-term stabilizer (20ml per 10L diesel); run engine 5 minutes to circulate stabilizer	Fuel stabilizer, fuel siphon pump (for draining)
	2. Protect engine cylinders	Remove spark plugs (if applicable); spray 2-3ml fogging oil into each cylinder; reinstall plugs	Fogging oil, spark plug wrench
	3. Maintain battery	Disconnect terminals; charge monthly (12V: charge to 13.8V; 24V: charge to 27.6V) or use trickle charger	Battery charger/trickle charger
	4. Cover generator	Clean exterior with damp cloth; use waterproof, breathable cover

Detailed Photos