When uninterrupted electrical reliability is mandatory, the 750kVA Cummins diesel generator set delivers uncompromising continuous performance. Built around the legendary 18.9-liter Cummins KTAA19-G6A heavy-duty industrial powertrain, this complete power package combines exceptional fuel economy, remarkable thermal endurance, and rapid step-load recovery. Engineered to withstand high ambient temperatures, high altitudes, and extreme dust conditions, our 750kVA Cummins diesel generator is the trusted choice for engineering contractors, telecommunication hubs, mining sites, high-rise commercial towers, and industrial manufacturing plants across global markets.
This 750kVA diesel generator incorporates a high-efficiency Stamford S5L1D-E41 alternator featuring Class H insulation and advanced automatic voltage regulation, ensuring clean harmonic waveforms and stable voltage under non-linear inductive loads. Governed by the SmartGen HGM6120N automatic mains failure (AMF) control system, the generator provides real-time monitoring of engine diagnostics, electrical parameters, automatic start/stop sequences, and ATS integration. Every 750kVA Cummins diesel generator set undergoes rigorous factory load testing at 25%, 50%, 75%, 100%, and 110% overload conditions to ensure zero-defect commissioning at job sites worldwide.
Key Engineering Advantages & Competitive Selling Points
1. Proven Cummins KTAA19-G6A Heavy-Duty Engine Core
At the mechanical heart of this 750kVA Cummins diesel generator is the industrial-grade Cummins KTAA19-G6A diesel engine. Featuring an in-line 6-cylinder architecture with an identical bore and stroke of 159 mm × 159 mm ("square cylinder" geometry), this 18.9-liter workhorse minimizes internal piston friction and optimizes structural rigidity. Equipped with turbocharging and Air-to-Air Charge Air Cooling (ATAAC), combustion chamber intake air density is substantially increased, resulting in higher thermal efficiency, reduced exhaust emissions, and exceptional transient load response. The proprietary Cummins PT (Pressure-Time) mechanical fuel injection system delivers ultra-precise fuel metering, high injection pressures, and extreme tolerance to diverse global diesel fuel qualities.
2. Premium Stamford S5L1D-E41 Brushless Alternator
Electrical conversion in this 750kVA diesel generator set is handled by the genuine Stamford S5L1D-E41 alternator. Manufactured by Cummins Generator Technologies, this 4-pole brushless synchronous AC generator utilizes a 2/3 pitch winding configuration to eliminate damaging triple harmonics (3rd, 9th, 15th) from the voltage waveform, safeguarding sensitive computers, PLCs, and medical machinery. Built with Class H insulation, IP23 enclosure protection, and an advanced AS440 solid-state automatic voltage regulator (AVR), the Stamford alternator maintains tight ±1.0% voltage regulation across no-load to full-load fluctuations. Optional Permanent Magnet Generator (PMG) excitation delivers sustained short-circuit current capability up to 300% for 10 seconds, easily motor-starting heavy pumps, compressors, and chillers.
3. SmartGen HGM6120N Intelligent AMF Digital Control Module
Seamless automation is delivered via the microprocessor-based SmartGen HGM6120N control panel. Designed specifically for single-unit automatic mains failure applications, the HGM6120N continuously samples 3-phase utility grid voltage and 3-phase generator output. Upon utility power outage, phase loss, or voltage anomaly, the controller automatically commands the 750kVA diesel generator to start, synchronize, and switch load via the Automatic Transfer Switch (ATS) in under 10 seconds. The graphical 132×64 LCD screen displays multi-language real-time telemetry including voltage, current, frequency, active power, reactive power, power factor, oil pressure, coolant temperature, running hours, and battery voltage, complete with comprehensive safety shutdowns for over-speed, high water temperature, and low oil pressure.
4. Heavy-Duty Structural Base Frame & Anti-Vibration Design
The 750kVA Cummins generator assembly is mounted upon a high-tensile robotic-welded steel channel skid base. Integrated with high-performance elastomeric anti-vibration rubber dampers, mechanical engine-to-foundation vibration transmission is reduced by more than 95%, safeguarding structural surroundings and extending component longevity. An optional integrated daily base fuel tank (8 to 12-hour continuous runtime capacity) includes mechanical level gauges, fuel inlet breather, drain valves, and overflow return ports, engineered for rapid installation without costly external day tank construction.
5. Efficient 50°C Tropical Heavy-Duty Cooling Package
Unlike standard generator radiators rated for 40°C, our 750kVA Cummins diesel generator set comes standard with an oversized heavy-duty 50°C tropical radiator. Constructed with copper-brass cooling fins, integrated charge-air cooler cores, and heavy-duty pusher cooling fans, this system ensures full rated kilowatt output without thermal derating, even in Middle Eastern deserts, Southeast Asian tropical environments, or enclosed basement plant rooms with elevated ambient air temperatures.
Product Parameter Summary
Parameter |
Value |
Model |
CDC750S |
Prime Power |
680KVA/544KW |
Standby Power |
750KVA/600KW |
Frequency/Speed |
50Hz/1500rpm, 60Hz/1800rpm |
Phase Wires |
3 phase 4 wire |
Power Factor |
0.8 (Lagging) |
Engine Model |
Cummins KTAA19-G6A |
Cylinders |
6 |
Bore x Stroke(mm) |
159 x 159mm |
Compression Ratio |
13.0 : 1 |
Cooling Method |
Water – cooled |
Starting Method |
24V DC electrical start |
Alternator |
Stamford / Leroy-Somer / Tooplinks |
Voltage |
110V-440V |
Insulation Class |
Class H |
Protection Rating |
IP23 (standard), optional IP55 |
Dimensions (L×W×H) |
4800 x 2000 x 2500mm |
Weight (KGS) |
7200kg |
Optional |
ATS (auto transfer system) |
Noise (Db) |
≤ 72db@7m |
MOQ |
1 pcs |
Q1: What is the exact difference between Standby 750kVA and Prime 680kVA for this Cummins generator?
A: Prime power (680kVA / 544kW) represents continuous power output for unlimited annual hours under variable loads, with a 10% overload capability for 1 hour every 12 operating hours. Standby power (750kVA / 600kW) is the maximum emergency backup rating during commercial grid failure; no overload is permissible on standby duty.
Q2: Can the Cummins KTAA19-G6A 750kVA generator run on 60Hz frequency and different voltages?
A: Yes. While 50Hz (1500 RPM, 400V/230V) is standard, we configure 60Hz (1800 RPM, 440V/480V/220V) versions utilizing identical KTAA19 engine platforms and Stamford alternators to match grid standards.
Q3: How does the SmartGen HGM6120N controller communicate with existing building management systems (BMS)?
A: The SmartGen HGM6120N comes standard with an isolated RS485 communication port running standard Modbus RTU protocol. Plant engineers can directly link the 750kVA diesel generator set to third-party BMS, SCADA, or cloud IoT monitoring gateways for remote status, alarms, and start/stop control.
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