Three/Single Phase Programmable RLC Load

The Programmable Three-Phase/Single Phase RLC Load System is a hardware-based programmable load bank that uses real resistors, inductors, and capacitors to simulate a wide range of electrical loading scenarios. Controlled via a LabVIEW-based graphical user interface (GUI), the system allows users to independently set resistive (R), inductive (L), and capacitive (C) load levels by entering reference power values, offering precise and dynamic control of active and reactive loads. With built-in power measurement, harmonic analysis, and multi-point communication this platform is ideal for power systems education, energy audits, and three-phase power quality research.

Key Features

Real RLC Components
Utilizes actual physical resistors, inductors, and capacitors, ensuring realistic thermal and electrical characteristics that mimic real-world loads.
Independent R, L, and C Load Control
- Set Resistive Load via Reference Active Power input
- Set Inductive Load via Reference Reactive Power (lagging)
- Set Capacitive Load via Reference Reactive Power (leading)
- Each load type can be independently turned ON/OFF via GUI switches
Comprehensive Three-Phase Parameter Monitoring
Real-time display of:
- Line-to-Line Voltages (RY, YB, BR)
- Line-to-Neutral Voltages (RN, YN, BN)
- Line Currents (R, Y, B)
Detailed Power & Energy Measurements
- Active Power and Energy (Import/Export)
- Reactive Power and Energy (Import/Export)
- Apparent Power and Apparent Energy
Power Quality & Harmonic Monitoring
- Voltage THD for all three phases
- Current THD for all three phases
- Power Factor, Frequency, and Phase Angle
- Ideal for analyzing effects of load variation on power quality
Multi-Device Communication Support
- Connects with multiple COM ports (e.g., Arduino Mega, Uno, and 3-phase power analyzer via USB)
- Flexible integration with sensors and power monitoring devices
LabVIEW-Based GUI Interface
- Centralized and user-friendly GUI for load control and monitoring
- All critical electrical parameters displayed live
- STOP function for immediate shutdown of all loads in emergency or unsafe scenarios

Learning Module

Education & Training

Hands-on experiments for engineering students on power factor correction, phase relationships, and reactive power compensation
Demonstrate concepts like leading/lagging power factor, THD impact, and energy measurement

Research & Testing

Study behavior of generators, inverters, or UPS systems under balanced/unbalanced RLC loads
Perform harmonic distortion analysis and energy flow studies under different load combinations

System Evaluation

Validate performance of power analyzers, energy meters, and protection devices
Test and simulate industrial 3-phase load conditions for product development or audits

Technical Description

The Three / Single Phase Programmable RLC Load is a hardware-based load emulation system designed for power systems and microgrid laboratories.
It uses real resistive, inductive, and capacitive elements, enabling realistic simulation of industrial and utility loads.
Load values are selected digitally through a PC-based graphical interface, which automatically configures internal R, L, and C combinations.
The system supports single-phase and three-phase operation, allowing balanced and unbalanced load studies.
Independent control of R, L, and C enables precise adjustment of active power, reactive power, and power factor.
Integrated electrical measurements allow real-time monitoring of voltage, current, power, and power factor.
Designed for continuous operation, the system supports experiments on power quality, grid stability, inverter testing, and microgrid research.

Technical Specifications

Electrical Configuration

Parameters	Specifications
Phase Support	Single-phase / Three-phase
Load Type	Resistive, Inductive, Capacitive
Load Control	Digitally programmable steps

* specifications can be customized

Control & Interface

Parameters	Specifications
User Interface	PC-based GUI (LabVIEW compatible)
Control Method	Software-controlled switching
Communication	USB / Ethernet (model dependent)

* specifications can be customized

Measurement & Safety

Parameters	Specifications
Measured Parameters	Voltage, Current, Power, Power Factor
Protection	Overcurrent, overvoltage, thermal protection
Application Mode	Continuous laboratory operation

* specifications can be customized

Real world impact across Campuses

Recent Installations

Ecosense supplied Customised Converters with Programmable RLC Load to NIT Goa to conduct their research on Microgrid.

May 11, 2022

The National Institute of Technology Goa (NIT Goa) is a premier technical Institute of the region.

Ecosense installs Remotely Operated and Controlled AC/DC Hybrid Microgrid at NIT Kurukshetra.

September 21, 2022

Department of Electrical Engineering, NIT Kurukshetra welcomed Remotely Operated and Controlled AC/DC Hybrid Microgrid supplied and commissioned by Ecosense.

Ecosense installed Hybrid AC/DC Microgrid at NIT Delhi

June 5, 2023

Ecosense's installation of a Microgrid system at the Department of Electronics and Electrical Engineering, NIT Delhi showcases their commitment to...

Frequently Asked Questions

The system is used to simulate real electrical loads using physical resistors, inductors, and capacitors. It allows students and researchers to study load behavior, power factor variation, reactive power flow, and system response under controlled single-phase or three-phase conditions.

Load values are set through a PC-based software interface. The user selects the desired resistive, inductive, and capacitive components, and the system automatically switches the internal hardware elements to achieve the required load combination.

Yes. Each phase can be configured independently, enabling unbalanced load conditions. This makes the system suitable for power quality analysis, voltage regulation studies, and testing grid-connected inverters and microgrids.

The system is ideal for electrical engineering students, academic researchers, and training institutes. It is widely used in power systems, smart grid, renewable energy, and microgrid laboratories for hands-on learning and experimental validation.

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Three/Single Phase Programmable RLC Load

Key Features