Many residential areas in Australia have long power supply lines. Thunderstorms, strong winds or equipment failures often lead to power outages. For households that need to keep refrigerators, air conditioners, lights and other appliances running, a reliable backup generator is a worthwhile investment. YG supplied a 25kw diesel generator to a local family user. Fitted with a silent enclosure and an automatic transfer switch, it can automatically supply power once the mains cuts out. Below are the full details of the purchase and application.

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Parameters of Hot-Selling Silent Diesel Generators for Sale

Power	30kw	100kw	150kw	200kw	300kw	400kw
cylinders	4 cylinder	6 cylinder	6 cylinder	6 cylinder	6 cylinder	6 cylinder
voltage	400/230V	400/230V	400/230V	400/230V	400/230V	400/230V
Frequency Range	50HZ	50HZ	50HZ	50HZ	50HZ	50HZ
Rotating speed	1500rpm	1500rpm	1500rpm	1500rpm	1500rpm	1500rpm
Cylinder diameter *stroke (mm)	100*115	105*125	105*130	126*130	126*155	135*160
Rated current	54A	180A	270A	360A	540A	720A
Phase	Three-phase four-wire	Three-phase four-wire	Three-phase four-wire	Three-phase four-wire	Three-phase four-wire	Three-phase four-wire

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Customer Requirements for Household Backup Power

• Power demand: Diesel driven unit, three-phase 400V/50Hz, 15-20kVA output and low noise performance.
• Power outage situation: The area suffers power cuts about 2 times a month, each lasting 3 to 6 hours. The original small generator was noisy and failed to run high-power appliances such as air conditioners and water pumps simultaneously.
• Runtime requirement: The fuel tank needs to support 24 hours of continuous operation to avoid refuelling during power outages.
• Cooling system: Water-cooled engine is required. The local summer temperature can reach 40℃, and air-cooled units are prone to overheating.
• Automatic operation: Equip with an Automatic Transfer Switch (ATS) to start the generator automatically during blackouts and switch back to mains power when electricity resumes.

YG Solution: Upgrade from 15kW to 25kw Diesel Generator

YG engineers first recommended a 15kW silent diesel generator set with a 25L fuel tank and ATS. The customer pointed out that the 25L tank was too small. Besides, the 15kW unit would nearly reach its power limit when running air conditioners and water heaters at the same time.

After further communication, we upgraded the model to a 25 kW diesel generator with the following configurations:

• Power: Rated at 25kW. It can run air conditioners, refrigerators, water pumps, lights and other household appliances all at once with sufficient power margin.
• Fuel tank: 75L large capacity. With a fuel consumption of around 3L per hour, it can work continuously for 24 hours with no need for refuelling.
• Silent enclosure: Double steel plates filled with sound-absorbing cotton. The tested noise level is about 72 decibels at 7 meters, similar to normal conversation volume, and will not disturb indoor living.
• Water-cooled engine: Equipped with an enlarged radiator. It will not overheat or shut down even after long hours of operation in high temperatures.
• ATS automatic transfer switch: The generator starts and switches the power supply in about 3 seconds after mains failure. It will switch back to mains power and stop with a delay once power is restored. The whole process is fully automatic.

The customer confirmed that no green or green/yellow cables were used for live wires inside the ATS, which complies with Australian standards stating green/yellow cables are only for earthing. Then the customer completed the payment and chose the DDP trade term. YG took charge of all customs clearance and door-to-door delivery.

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Shipment & Transportation of 25kw Diesel Generator

• Production cycle: Manufacturing and factory tests were completed within 6 working days after payment.
• Pre-shipment inspection: YG sent videos of unit startup, load operation and ATS switching, together with high-definition photos, to the customer. Delivery was arranged after full confirmation.
• Packaging: Export-grade plywood wooden case with shockproof foam inside and anti-slip skids at the bottom. Labels such as “Fragile” and “Moisture Proof” were posted on the case.
• Transportation: Combined sea and land transport. It took about 30 days from the YG factory to the customer’s address in Australia. The customer received the package in good condition. The unit and all accessories were intact after unpacking.

Why the YG Diesel Engine Generator Set Is Popular Among Household Users

• Uninterrupted power supply with no manual operation: The ATS monitors mains power and switches automatically. Household appliances keep running during outages. The customer said they no longer need to start the generator manually in the dark.
• Low noise for daily comfort: This silent diesel generator set produces barely noticeable noise indoors. The user commented that it is much quieter than their old ordinary generator.
• Long runtime and low maintenance frequency: The large fuel tank enables 24-hour continuous operation, so there is no need to refuel even during weekend blackouts. Daily maintenance only includes regular checks on engine oil and coolant, which is simple to handle.
• Compliant and safe performance: The electrical system meets Australian AS/NZS 3000 standards. The cable colours inside ATS fully follow local rules and passed inspection by local electricians on the first attempt.
• Reliable after-sales support: YG offers a 24-month warranty and lifetime technical consultation. Users can get remote guidance via email or video for any operational problems.

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Contact YG for Custom Household Backup Power Solutions

If you are looking for reliable silent diesel generators for sale, YG provides a full range of diesel engine generator sets from 15kW to 500kW. We support customised fuel tank capacity, ATS functions and trailer chassis, as well as DDP door-to-door delivery service. Feel free to contact YG to get the latest quotes and selection advice for silent diesel generators for sale.