Load banks apply controlled electrical loads to power sources. Resistive elements convert active power into heat, while inductive and capacitive elements exchange reactive power with the source, holding the reactive load at the required level.
Unlike variable field loads, load banks provide predetermined and adjustable loading conditions, enabling reliable testing, commissioning, and performance verification of electrical power systems.
Hilkar L-Series inductive load banks contain controlled inductive loads used to apply reactive power demand to electrical power sources for testing and performance verification.
Available in portable and stationary configurations, L-Series load banks provide load step increments as low as 1 kVAr, enabling precise load control and power factor adjustment for small to large generator systems.
Designed for demanding industrial environments, Hilkar L-Series load banks feature a robust construction suitable for corrosive conditions. They can be operated through local, remote, wireless remote, or automatic control systems.
L-Series load banks are suitable for both workshop and field testing applications and can be supplied as trailer-mounted units for flexible on-site operation.
- Robust and durable design
- Vertical or horizontal air discharge configuration
- ISO containerized or custom enclosure options
- Integrated remote control system with data acquisition, monitoring, and load step control
- Configurable load combinations: R / L / C / RL / RC / RLC
- Easy integration and synchronization with other load banks
- Corrosion-resistant coating for outdoor applications
- High-temperature class reactors on demand
- Designs compatible with IEC 62116, IEEE Std 929, and UL 1741 standards
Hilkar load banks can be equipped with optional touchscreen LCD displays, wireless remote load step controllers, and PC-based control software for advanced testing and monitoring. The control system provides fan start/stop control, electrical parameter monitoring, load step management, timing functions, data recording, test modes, and fault detection. PC controllers communicate with the load bank via a USB connection.
Load banks include circuit breaker protection and provide easy access to switchgear compartments and reactors. Integrated safety functions protect against fan failure, low airflow, overvoltage, overheating, and phase sequence faults. Suitable for flexible field operation, trailer-mounted L-Series inductive load banks provide reliable solutions for on-site generator testing.
| Auxiliary Voltage | 400 V, 50–60 Hz (other voltages and frequencies available upon request) |
|---|---|
| Control | Manual control (local and/or remote) or automatic control via DSP controller |
| Portability | Forklift channels, lifting lugs, and wheels for easy transportation |
| Model | Load Step Resolution | Designed Voltage | Capacity (kVAr) | Dimensions (W × L × H) cm / in | Weight (kg/lb) |
|---|---|---|---|---|---|
| LB.L.1 | min. 5 kVAr | up to 690 V 50–60 Hz | 0–100 | 65 × 125 × 65 / 25.6 × 49.2 × 25.6 | Variable as per load steps |
| LB.L.2 | min. 5 kVAr | up to 690 V 50–60 Hz or DC | 100–250 | 100 × 175 × 100 / 39.4 × 68.9 × 39.4 | Variable as per load steps |
| LB.L.3 | min. 5 kVAr | up to 690 V 50–60 Hz | 250–500 | 125 × 200 × 125 / 49.2 × 78.7 × 49.2 | Variable as per load steps |
| LB.L.4 | min. 5 kVAr | up to 690 V 50–60 Hz | 500–1000 | 200 × 200 × 200 / 78.7 × 78.7 × 78.7 | Variable as per load steps |
| LB.L.C10 | min. 5 kVAr | up to 690 V 50–60 Hz | 1000–2500 | 210 × 300 × 220 / 82.7 × 118.1 × 86.6 | Variable as per load steps |
| LB.L.C20 | min. 25 kVAr | up to 36 kV 50–60 Hz | 2500–5000 | Standard 20-foot high-cube container dimensions | Variable as per load steps |
| LB.L.C40 | min. 25 kVAr | up to 36 kV 50–60 Hz | 5000–15000 | Standard 40 feet high cube container dimensions | Variable as per load steps |
Hilkar load banks can be operated through various control options to meet different testing requirements:
Local Control
Remote Control
Wireless Remote Control
Automatic Control
- Frequency
50 / 60 / 400 Hz
- Load Type
Inductive
≤ 36 kV
- Measurements
V, A, W, VAr, Hz, cosφ
- Applied Voltage and Frequency (System voltage and operating frequency)
- Installation Type (Mobile or stationary)
- Load Step Resolution
- Service Location (Indoor or outdoor application)
- Required Reactive Load Capacity (kVAr)
- Blower and Control Voltage (Auxiliary supply voltage requirements)
- Control Power Supply (Internal and/or external )
- Meters (Voltmeter, Ammeter, kW meter, kVA meter, cosφ, frequency meter)
- Optional Communication Interface RS-232 / RS-485 computer interface (wireless interface available upon request)
- Automatic Controller Required / not required
- Wireless Remote Control Required / not required
- Protection Degree IP20 (indoor), IP20 (outdoor under roof), IP55 (outdoor)