Load Bank Testing Solutions

Generator Testing Solutions

Verify your generator's true performance under real-world electrical loads. Prevent wet stacking, uncover hidden issues, and ensure your backup power system delivers when it matters most.

25% → 100%

Step load testing

Comprehensive

Test reports & documentation

NFPA 110

Compliant testing

Why Load Bank Testing Matters

A generator that starts is not the same as a generator that performs[citation:2]. Without proper load testing, you're trusting critical backup power to an unknown.

Wet Stacking

Diesel generators running below 60% load accumulate unburned fuel and carbon deposits on exhaust valves and turbochargers, leading to reduced efficiency and eventual failure[citation:2][citation:5].

Undiscovered Capacity Issues

A generator may start flawlessly but fail to deliver rated kW under full load. Only a load bank test reveals voltage drops, frequency instability, and governor/AVR problems[citation:2][citation:7].

Cooling System Weaknesses

Overheating at full load exposes coolant leaks, blocked radiators, or undersized cooling capacity — issues that never surface during no-load start-ups[citation:5].

Compliance Risk

NFPA 110 and other standards require documented load testing for mission-critical facilities. Without it, you risk audit failures and liability[citation:2][citation:5].

Our Generator Testing Solution

We provide professional load bank testing services and equipment to validate your generator's performance under controlled, real-world electrical loads. Our approach simulates actual operating conditions — not just idle start-ups — so you know exactly how your system will behave when the grid fails.

What we test and verify:

Electrical performance — voltage, frequency (Hz), phase balance, power factor
Output stability — response to step-load changes, transient recovery
Thermal behavior — exhaust temps by cylinder, coolant and oil temperatures
Mechanical health — vibrations, abnormal noise, leaks, belt condition
Controls & protection — alarms, shutdowns, governor/AVR response[citation:2][citation:7]

Our testing process:

Pre-Test Inspection

Visual checks, fluid levels, belts/hoses, battery, fuel supply, airflow

Baseline & Warm-Up

Verify no-load voltage/frequency, governor and AVR baseline

Step Loading

Apply 25% → 50% → 75% → 100% load; hold each stage for stabilization

Full-Load Run

Sustained operation at 100% load; monitor cooling, exhaust, and engine response

Step Unload

Observe voltage/frequency recovery and protective device behavior

Report

Detailed documentation with pass/fail notes and recommendations[citation:2][citation:7]

Recommended Load Banks for Generator Testing

Different generators require different testing approaches. Here's how we match the right load bank to your application.

Load Bank Selection Guide

Generator Size	Recommended Load Bank	Key Features	Best For
≤ 500 kW	Portable Resistive Load Bank	Compact, trailer-mounted, 1kW step control	Routine maintenance, field service
500 – 2000 kW	Rack-Mounted / Trailer Load Bank	Modular, indoor/outdoor rated, data logging	Data centers, hospitals, industrial plants
≥ 2000 kW	Containerised RLC Load Bank	Resistive + Inductive + Capacitive, up to 10MW[citation:5]	Commissioning, acceptance testing, utility-scale
Mission-Critical	RLC Load Bank	Simulates real-world reactive loads, power factor adjustable	Data centers, hospitals, facilities with motor/UPS loads[citation:6]

Ready to Test Your Generator?

Our engineering team will help you select the right load bank and testing protocol for your specific generator — whether it's routine maintenance, commissioning, or compliance verification.

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