I. Advantages of Cummins Diesel Generator Sets
1. The Cummins series is a popular choice for diesel generator sets. Paralleling several Cummins diesel generator sets creates a high-power generator set to supply power to the load. The number of units operating can be adjusted based on the load size. Fuel consumption is minimized when a generator set operates at 75% of its rated load, which saves diesel and reduces generator set costs. Saving diesel is especially important now that diesel is scarce and fuel prices are rising rapidly.
2. Ensures an uninterrupted power supply for continuous factory production. When switching between units, the standby generator set can be started before stopping the original running generator set, with no power interruption during the switchover.
3. When multiple Cummins diesel generator sets are connected and operate in parallel, the current surge from a sudden load increase is distributed evenly among the sets. This reduces the stress on each generator, stabilizes voltage and frequency, and extends the service life of the generator sets.
4. Cummins warranty service is readily available worldwide, even in Iran and Cuba. Furthermore, the number of parts is small, resulting in high reliability and relatively easy maintenance.
II. Technical Performance of Cummins Diesel Generator Sets
1. Cummins diesel generator set type: rotating magnetic field, single bearing, 4-pole, brushless, drip-proof construction, insulation class H, and compliant with GB766, BS5000, and IEC34-1 standards. The generator is suitable for use in environments containing sand, gravel, salt, seawater, and chemical corrosives.
2. Cummins diesel generator set phase sequence: A(U) B(V) C(W)
3. Stator: Skewed slot structure with 2/3 pitch winding effectively suppresses neutral current and minimizes output voltage waveform distortion.
4. Rotor: Dynamically balanced before assembly and directly connected to the engine via a flexible drive disc. Optimized damper windings reduce oscillations during parallel operation.
5. Cooling: Directly driven by a centrifugal fan.
III. Basic Characteristics of Cummins Diesel Generator Sets
1. The generator’s low reactance design minimizes waveform distortion with non-linear loads and ensures excellent motor starting capabilities.
2. Complies with standards: ISO8528, ISO3046, BS5514, GB/T2820-97
3. Prime Power: Continuous running power under variable load conditions; a 10% overload is permitted for 1 hour in every 12 hours of operation.
4. Standby Power: Continuous running power under variable load conditions during emergency situations.
5. Standard voltage is 380VAC-440VAC, and all power ratings are based on a 40°C ambient temperature.
6. Cummins diesel generator sets have an insulation class of H.
IV. Basic Features of Cummins Diesel Generator Sets
1. Key design features of Cummins diesel generator sets:
The Cummins diesel generator set features a robust and durable cylinder block design that minimizes vibration and noise. Its in-line, six-cylinder, four-stroke configuration ensures smooth operation and high efficiency. Replaceable wet cylinder liners contribute to a long service life and simplified maintenance. A two-cylinder-per-head design with four valves per cylinder provides ample air intake, while forced water cooling minimizes heat radiation and ensures exceptional performance.
2. Cummins diesel generator set fuel system:
Cummins’ patented PT fuel system features a unique overspeed protection device. It utilizes a low-pressure fuel supply line, which minimizes pipelines, reduces failure rates, and enhances reliability. High-pressure injection ensures complete combustion. Equipped with fuel supply and return check valves for safe and reliable operation.
3. Cummins diesel generator set intake system:
Cummins diesel generator sets are equipped with dry-type air filters and air restriction indicators, and utilize exhaust gas turbochargers to ensure sufficient air intake and guaranteed performance.
4. Cummins diesel generator set exhaust system:
Cummins diesel generator sets use pulse-tuned dry exhaust manifolds, which effectively harness exhaust gas energy and maximize engine performance. The unit is equipped with 127mm diameter exhaust elbows and exhaust bellows for easy connection.
5. Cummins diesel generator set cooling system:
The Cummins diesel generator set engine employs a gear-driven centrifugal water pump for forced water cooling. Its large-flow waterway design ensures excellent cooling, effectively reducing heat radiation and noise. A unique spin-on water filter prevents rust and corrosion, controls acidity, and removes impurities.
6. Cummins diesel generator set lubrication system:
A variable flow oil pump, equipped with a main oil gallery signal line, adjusts the pump’s oil volume based on the main oil gallery pressure, optimizing the amount of oil delivered to the engine. The low oil pressure (241-345kPa), combined with these features, effectively reduces pump oil power loss, enhances power performance, and improves engine economy.
7. Cummins diesel generator set power output:
A dual-groove power take-off crankshaft pulley can be installed in front of the vibration damper. The front of Cummins diesel generator sets are equipped with a multi-groove accessory drive pulley, both of which can drive various front-end power take-off devices.
Post time: Jun-30-2025