Cummins Series 500kW–572kW Diesel Generator Set
As a generator set manufacturer and power system integrator, SWT focuses on complete power solutions rather than only component supply. Each genset integrates the engine, alternator, base frame, control system, protection devices, cooling system, exhaust system and optional enclosure into a complete power generation package.
Open type and 20-foot containerized configurations are available, making this power range suitable for factories, mining sites, oilfield projects, data centers, infrastructure projects and emergency standby power systems.
- Power range covering 500kW / 625kVA, 550kW / 688kVA and 572kW / 715kVA standby ratings.
- 50Hz and 60Hz configurations available for different regional power standards.
- Open type and 20-foot containerized configurations for flexible installation and deployment.
- Integrated SWT control system with local and remote start, multilingual display, event logs and protection functions.
- ATS and SWT paralleling system available for automatic power transfer, multi-unit operation and capacity expansion.
- Each generator set is factory tested under 0%, 25%, 50%, 75%, 100% and 110% load conditions before delivery.
Model Range and Main Specifications
| Model | Prime Power | Standby Power | Frequency | Rated Speed | Voltage | Power Factor |
| SC688 | 500kW / 625kVA | 550kW / 688kVA | 50Hz | 1500r/min | 400/230V | 0.8 |
| SC688X | 500kW / 625kVA | 550kW / 688kVA | 60Hz | 1800r/min | 440/460/480V | 0.8 |
| SC715 | 520kW / 650kVA | 572kW / 715kVA | 50Hz | 1500r/min | 380/400/415V | 0.8 |
Dimensions and Weight
| Model | Configuration | Dimension L x W x H (mm) | Weight (kg) |
| SC688 | Open type | 3720 x 1640 x 2040 | 4650 |
| SC688 | 20′ Container | 6058 x 2438 x 2591 | 8150 |
| SC688X | Open type | 3720 x 1640 x 2040 | 4250 |
| SC688X | 20′ Container | 6058 x 2438 x 2591 | 7750 |
| SC715 | Open type | 4345 x 1710 x 2300 | 6000 |
| SC715 | 20′ Container | 6058 x 2438 x 2591 | 9800 |
Standard Operating Conditions
| Item | Specification |
| Ambient Temperature | ≤40°C |
| Altitude | ≤1000m |
| Relative Humidity | ≤60% |
| Power Correction | Power derating is required when ambient temperature is higher than 40°C or altitude is higher than 1000m. |
| Humidity Measures | Additional protection measures are required for excessive humidity. |
Power Rating Definition
| Item | Specification |
| Prime Power (PRP) | The generator set can run continuously for 24 hours under variable load, allowing 10% overload every 12 hours for 1 hour. |
| Standby Power (ESP) | Used at an average load factor of 80% for no more than 500 hours per year. No overload is allowed. |
System Configuration
Integrated Genset Package
The generator set is supplied as a complete integrated system. Standard components include engine, alternator, chassis, control box, controller for single unit, circuit breaker, industrial muffler, flange of muffler, bellow joint, shock absorber, test report, certificate of quality, schematic diagram, installation manual and operation manual.
Matched Engine Platform
According to the selected model and project requirement, the genset can be matched with Cummins engine platforms such as KTA19-G8A, QSKTAA19-G4 or KT38-G. The product page keeps the focus on complete generator set performance, configuration and project suitability.
Alternator and Electrical Output
- Three-phase alternator configuration.
- Power factor 0.8.
- Insulation class H and temperature rise class H.
- IP23 protection rating.
- Waveform distortion (THD) <5% and telephone interference factor (THF) <2%.
- 50Hz and 60Hz voltage configurations available according to model selection.
SWT Control System
The standard SWT control system is designed for single-unit operation, monitoring and protection. It supports easy operation, real-time monitoring and flexible communication options for project applications.
- LCD screen with key operation.
- Multilingual display.
- Control and protection functions.
- Engine and alternator parameter detection.
- Local and remote start.
- Event logs and alarm indication.
- Multiple communication interfaces available.
- IP65 overall protection for the controller.
ATS Optional
An ATS panel can be provided for applications requiring automatic transfer between mains power and generator power. The ATS controller integrates measurement, display and control functions for mains/mains or mains/generator systems.
- Microcomputer control with digital technology.
- LCD display for ATS operating state and controller mode.
- Voltage and frequency measurement through LCD screen.
- Fast on-load switching between two power sources, with switching time up to ≤80ms depending on configuration.
- Electrical and mechanical interlock mechanism to help prevent short circuit between two power sources.
SWT Paralleling System Optional
For larger power demand or redundant power systems, SWT can provide a paralleling system for genset-to-genset, genset-to-grid and paralleling with ATS applications. The system can support automatic synchronizing of up to 32 units.
- Automatic start and synchronizing operation.
- Automatic unit input or exit according to load demand.
- Can support genset-to-genset or genset-to-grid operation depending on project design.
- PLC system and touch screen can be configured according to customer requirements.
- Helps avoid operation of high-power units under small load and supports future capacity expansion.
Applications
- Industrial power supply for factories and production facilities.
- Commercial and public building standby power.
- Mining power supply for remote or weak-grid areas.
- Oilfield and energy project power supply.
- Data center backup power systems.
- Construction and infrastructure project power.
- Telecom and utility support power.
- Emergency standby and temporary power applications.
- Distributed power and multi-unit power station projects.
Why Choose SWT
- Complete system integration: SWT provides the full generator set package, including power unit, alternator, base frame, control system, protection devices and optional enclosure.
- Flexible configuration: open type and 20-foot containerized solutions can be selected according to installation environment and project requirements.
- Project-oriented customization: voltage, frequency, control logic, ATS, paralleling system, enclosure and communication modules can be configured for different application scenarios.
- Factory testing before delivery: load tests and system inspections help improve reliability before shipment.
- Suitable for capacity expansion: SWT paralleling system enables multi-unit operation and future project expansion.
Standard Accessories
- Test report
- Certificate of quality
- Schematic diagram
- Installation manual
- Operation manual
- Engine
- Alternator
- Chassis
- Control box
- Controller for single unit
- Circuit breaker (up to 1200kW)
- Industrial muffler
- Flange of muffler
- Bellow joint
- Shock absorber
- Base tank (up to 200kW, when applicable)
Optional Accessories
- Daily fuel tank / bulk fuel tank
- Residential silencer
- Power cable
- Anti-condensation heater for alternator
- Battery charger
- Water jacket heater
- Oil heater
- Fuel level sensor
- Automatic oil make-up device
- Automatic fuel filling device
- Soundproof enclosure
- Containerized enclosure
- Trailer
- Exhaust pipe
- Hot air discharge duct
- RS485 extension module
- Ethernet communication
- Cloud monitor
- ATS panel
- Motorized circuit breaker
- Synchronizing system
- Spare parts
FAQ
Q1: What power range does this product page cover?
A: It covers SWT Cummins series generator sets including SC688, SC688X and SC715, with prime power from 500kW / 625kVA to 520kW / 650kVA and standby power up to 572kW / 715kVA.
Q2: Are both 50Hz and 60Hz models available?
A: Yes. SC688 and SC715 are 50Hz configurations, while SC688X is a 60Hz configuration for regions requiring 60Hz power systems.
Q3: What configurations are available?
A: Open type and 20-foot containerized configurations are available. Other project-specific requirements can be discussed according to site conditions.
Q4: Can the generator set be used for standby power?
A: Yes. The generator set can be used for standby power applications in factories, commercial buildings, data centers, infrastructure projects and emergency systems.
Q5: Can SWT provide ATS for this generator set?
A: Yes. ATS can be configured for automatic switching between mains power and generator power.
Q6: Can multiple generator sets operate in parallel?
A: Yes. SWT can provide a paralleling system for multi-unit operation, genset-to-genset operation, genset-to-grid operation and paralleling with ATS.
Q7: What tests are carried out before delivery?
A: Each unit passes load tests at 0%, 25%, 50%, 75%, 100% and 110%, and all protection devices and control systems are inspected before delivery.
Q8: What applications are suitable for this power range?
A: Typical applications include industrial power supply, mining, oilfield projects, data centers, construction sites, commercial backup power and distributed power projects.
