WALT POWER delivered a 20kW single-phase Perkins super silent diesel generator to the United States. The generator was configured for 120/240V, 60Hz operation, with a Perkins diesel engine, Stamford alternator, Deep Sea controller, and a fully enclosed silent canopy.
For buyers looking for a 20kW Perkins standby generator, the electrical configuration is particularly important. This unit was built for single-phase applications rather than the three-phase power commonly used in larger industrial installations.
20kW Perkins Diesel Generator Specifications
The generator was supplied with the following configuration:
| Item | Specification |
|---|---|
| Generator Model | WGP-P20/S6 |
| Standby Power | 20kW / 20kVA |
| Prime Power | 18kW / 18kVA |
| Voltage | 120/240V |
| Frequency | 60Hz |
| Phase | Single Phase |
| Diesel Engine | Perkins 404D Series |
| Alternator | Stamford |
| Controller | Deep Sea |
| Enclosure | Fully Enclosed Super Silent Canopy |
| Fuel Tank | 500L Integrated Base Fuel Tank |
| Warranty | 12 Months |
The original generator specification identified the Perkins engine as EPA-certified. For any new order intended for the United States, we recommend confirming the exact engine model, applicable emissions certification, and intended application before production.
Why the 120/240V Single-Phase Configuration Matters
In the United States, 120/240V single-phase power is commonly used for residential and certain small commercial electrical systems.
For this generator, the 120/240V, 60Hz configuration was an important part of the order.
When selecting a diesel generator for the U.S. market, I recommend checking the following details before confirming the equipment:
- Voltage and phase: Confirm whether the installation requires 120/240V single-phase or a three-phase supply.
- Starting loads: Consider the starting current of air conditioners, pumps, compressors, and other motor-driven equipment.
- Power rating: Distinguish between standby power and prime power when evaluating the generator's capacity.
- Electrical installation: Confirm the required transfer switch, protection devices, grounding arrangement, and local installation requirements.
A generator's rated output alone does not determine whether it is suitable for a particular electrical system.
Automatic Starting and ATS Operation
This generator was configured with a Deep Sea controller for automatic operation with a compatible Automatic Transfer Switch (ATS).
During a utility power failure, the ATS or associated control system can send a start request to the generator. Once the engine has started and the generator voltage and frequency are within the required limits, the transfer system can connect the designated load to generator power.
When utility power returns and is confirmed stable, the system can transfer the load back to the utility supply. The generator then completes its programmed cooldown period before stopping.
The total time required for automatic starting and load transfer depends on the controller settings, engine starting conditions, voltage and frequency stabilization, and ATS configuration.
For this reason, we do not specify a universal three-second transfer time for every installation.
What Should U.S. Buyers Confirm Before Ordering?
From our experience supplying diesel generators for overseas projects, a few technical details should be settled before production rather than after the generator arrives.
For a 20kW Perkins generator intended for the United States, I would pay particular attention to three areas.
First, confirm the actual electrical loads. A 20kW standby rating does not necessarily mean the generator can start every connected motor simultaneously. Starting current and load sequencing may affect the required generator capacity.
Second, verify emissions requirements. The engine's applicable EPA certification must be checked against the exact engine configuration and intended use. Requirements may differ depending on the installation and application.
Third, review the installation conditions. Even with a silent enclosure, the generator requires suitable ventilation, exhaust arrangements, service access, and a properly designed electrical connection.
These checks help avoid compatibility problems during installation and commissioning.
More Perkins Diesel Generator Options
The 20kW single-phase generator described above was a completed delivery to the United States.
For new projects, generator specifications, engine availability, emissions requirements, and electrical configurations should be confirmed according to the current order requirements.
You can explore our Perkins diesel generator range or contact WALT POWER with your required power output, voltage, frequency, application, and destination country.
We can then review a suitable generator configuration for your project.
