Load banks are devices which contain resistive, inductive and/or capacitive loads, apply the load to an electrical power source and dissipate the power of the electrical source.
Unlike the on-site loads which are randomly variable in terms of many electrical parameters, load banks provide predetermined and controllable load which serves the power source, using it’s energy output to test, support or protect the power source.
Portable and stationary resistive load banks incorporate as low as 1 kW load step increments for testing small to large generating sets. The fine control resolution ensures accurate load control and power factor targeting adjustments.
Load banks are suitable for both workshop and on-site testing and the units are suitable for trailer mounting.
2）Vertical / Horizontal air release
3） ISO container or custom made enclosure design
4） Integrated remote control system with data capture, monitoring and load step controlling
5）Ease of integrated load testing with other load banks
6）Corrosion resistant outdoor type paint
7）Stainless steel vibration proof resistor
Load banks feature optional touch-type LCD display and/or wireless remote load step switching controller and/or load step & time controller PC software. In addition, controller features include fan start/stop, electrical parameter controls, timing, capturing data, test mode and fault detection. PC controllers are connected to load bank through USB port for connection.
In addition, circuit breaker protections are provided in the load bank and easy access to switchgear compartment and reactors is achieved. In terms of safety; fan failure, low air flow, over-voltage, over temperature and phase sequence protections are included in the load bank.
1）DC or 50 – 60 – 400 Hz
2）Resistive ( up to 36 kV )
3）Power Analyzer Measurements : V, A, W, VAr, Hz, cosPhi
Load banks can be controlled via local, remote, wireless remote or automatic control systems.
Local control: Control panel self-contained in Load Bank with load control button and/or touch panel.
Remote control: PC software controlled with data cable thru a USB connection input in a location away from the physical load bank for controlling predetermined load steps, power factor, timing, capturing data, test mode and fault detection.
Wireless remote control: Load steps and main controlling function of the load bank is achieved by an ergonomic hand-held remote control.
Automatic control: DSP controller with auto control available including auto on-off, auto load regulation, timing, regenerative power response.
L-series inductive load banks are devices which contain inductive loads, apply the load to an electrical power source and dissipate the reactive power of the electrical source.
L-series load banks are designed for portable and fixed applications.
Nengyi brand L-series load banks have robust design and are specifically designed for corrosive environments. Load banks can be controlled via local, remote, wireless remote or automatic control systems.
For other ratings or load resolutions, consult factory.
Dimensions and weight may be changed as per the custom specific ratings.
Given dimensions and weights are approximate values.
1）Applied voltage and frequency
2）Mobile or stable
3）Load step resolution
4）Indoor or outdoor service
6）Blower and control voltage
7）Internal and/or external control power
8）Meters (Voltmeter, Ammeter, kW meter, kVA meter, cosF, frequency meter)
9）Optional computer interface RS 232 / RS 485 (wireless computer interface on demand)
11）Wireless remote control
12）Protection degree: IP20/indoor, IP20/outdoor under roof, IP55/outdoor