Field testing modern substation and industrial protection schemes demands secondary injection instruments with rock-solid injection accuracy, multi-channel flexibility, and dependable field durability. We are pleased to announce the successful supply and dispatch of our flagship MP3000A multi-phase protection relay test system to an electrical testing, commissioning, and maintenance service enterprise. Designed to serve testing engineers across utility substations, industrial plants, and switchyards, the MP3000A provides a versatile testing platform capable of verifying electromechanical, solid-state, and modern numerical multifunction relays across generation, transmission, and distribution assets. Core Relay Testing Capabilities of the MP3000A: Overcurrent, Earth Fault & Directional Schemes: High-precision verification of pickup current, operating timing characteristics (IEC/IEEE/IDMT curves), and directional boundaries (ANSI 50/51, 50N/51N, 67/67N) under single-phase and multi-phase fault configurations. Line Distance Protection (ANSI 21/21N): Dynamic multi-zone impedance boundary evaluations (Zones Z1, Z2, Z3, Z4), reach accuracy verification, fault-loop impedance timing, and switch-onto-fault (SOTF) scheme testing. Transformer & Bus Differential Schemes (ANSI 87T, 87B, 87G): In-depth testing of dual-slope percentage restraint curves, through-fault stability limits, and 2nd and 5th harmonic restraint and blocking ratios. Voltage & Frequency Elements: Highly accurate trip/reset calibration for under/overvoltage (ANSI 27/59), under/over-frequency (ANSI 81U/81O), and rate-of-change-of-frequency (ANSI 81R/ROCOF) islanding and load-shedding schemes. Auto-Reclosing & Scheme Sequencing: Full multi-shot auto-reclose cycles (ANSI 79), breaker failure timing (ANSI 50BF), and synchronism check / synchro-check (ANSI 25) verification. Power & Generator Protection Elements: Reverse power flow (ANSI 32R), loss of excitation (ANSI 40), and negative-sequence unbalance (ANSI 46) protection for industrial generator and motor applications. With steady independent current and voltage outputs, low total harmonic distortion, and millisecond-accurate binary inputs for trip/reset timing, the MP3000A equips commissioning teams to carry out comprehensive routine calibration, baseline pre-commissioning checks, and post-fault tripping analysis with confidence. Explore the technical specifications of the MP3000A and our wider range of secondary injection testing equipment directly on our site, or get in touch through our contact page for detailed technical support.
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Powering Field Commissioning: MP3000A Multi-Phase Protection Relay Test System Supplied for Site Tes
2026-10-01T15:23:41
Field testing modern substation and industrial protection schemes demands secondary injection instruments with rock-solid injection accuracy, multi-channel flexibility, and dependable field durability. We are pleased to announce the successful supply and dispatch of our flagship MP3000A multi-phase protection relay test system to an electrical testing, commissioning, and maintenance service enterprise. Designed to serve testing engineers across utility substations, industrial plants, and switchyards, the MP3000A provides a versatile testing platform capable of verifying electromechanical, solid-state, and modern numerical multifunction relays across generation, transmission, and distribution assets. Core Relay Testing Capabilities of the MP3000A: Overcurrent, Earth Fault & Directional Schemes: High-precision verification of pickup current, operating timing characteristics (IEC/IEEE/IDMT curves), and directional boundaries (ANSI 50/51, 50N/51N, 67/67N) under single-phase and multi-phase fault configurations. Line Distance Protection (ANSI 21/21N): Dynamic multi-zone impedance boundary evaluations (Zones Z1, Z2, Z3, Z4), reach accuracy verification, fault-loop impedance timing, and switch-onto-fault (SOTF) scheme testing. Transformer & Bus Differential Schemes (ANSI 87T, 87B, 87G): In-depth testing of dual-slope percentage restraint curves, through-fault stability limits, and 2nd and 5th harmonic restraint and blocking ratios. Voltage & Frequency Elements: Highly accurate trip/reset calibration for under/overvoltage (ANSI 27/59), under/over-frequency (ANSI 81U/81O), and rate-of-change-of-frequency (ANSI 81R/ROCOF) islanding and load-shedding schemes. Auto-Reclosing & Scheme Sequencing: Full multi-shot auto-reclose cycles (ANSI 79), breaker failure timing (ANSI 50BF), and synchronism check / synchro-check (ANSI 25) verification. Power & Generator Protection Elements: Reverse power flow (ANSI 32R), loss of excitation (ANSI 40), and negative-sequence unbalance (ANSI 46) protection for industrial generator and motor applications. With steady independent current and voltage outputs, low total harmonic distortion, and millisecond-accurate binary inputs for trip/reset timing, the MP3000A equips commissioning teams to carry out comprehensive routine calibration, baseline pre-commissioning checks, and post-fault tripping analysis with confidence. Explore the technical specifications of the MP3000A and our wider range of secondary injection testing equipment directly on our site, or get in touch through our contact page for detailed technical support.
2026-10-01T15:23:41
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