3-Phase Relay Protection Tester – Industrial Control Computer + DSP Architecture
A professional 3-phase relay protection tester engineered with industrial control computer and DSP architecture for high-precision calibration, commissioning, and validation of protection relays in substations and industrial power systems.
This advanced 3-phase relay protection tester is designed for commissioning, maintenance, and verification of protective relays used in electrical distribution networks, substations, power plants, and industrial facilities.
Built around an industrial control computer platform combined with DSP (Digital Signal Processing) technology, the unit delivers stable, high-accuracy current and voltage simulation for comprehensive relay testing.
It enables technicians to simulate fault conditions and validate relay performance across multiple protection schemes, including:
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Overcurrent protection
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Over/under voltage protection
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Frequency protection
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Distance protection
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Differential protection
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Time-delay and inverse-time characteristics
The digital interface provides precise control and clear monitoring of test parameters, ensuring reliable relay calibration and performance verification.
Designed for field and workshop environments, the tester supports industrial electrical maintenance teams, commissioning engineers, and utility service providers.
Key Applications
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Substation relay commissioning
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Protection relay calibration
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Preventive maintenance testing
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Fault simulation and verification
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Industrial power distribution systems
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Utility network maintenance
Key Features
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3-phase voltage and current output capability
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Industrial control computer platform
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High-performance DSP processing
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Digital display interface
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Designed for professional relay testing environments
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CE certified