GE Multilin MIV II MIVII3000E00HI00 — Industrial-Grade Voltage & Frequency Protection Relay

The GE MIVII3000E00HI00 represents a proven solution in power system protection, engineered to safeguard critical electrical infrastructure against voltage and frequency anomalies. This relay serves utilities, industrial plants, and commercial facilities requiring dependable monitoring of medium to high-voltage networks. Designed for generator protection, feeder circuits, and transformer applications, it delivers real-time detection of overvoltage, undervoltage, overfrequency, and underfrequency conditions—preventing costly downtime and equipment failure.

Built on the Multilin MIV II platform and now supported under GE Vernova, this relay combines field-proven reliability with intuitive configuration. Whether you're upgrading legacy protection schemes or deploying new substations, the MIVII3000E00HI00 offers the precision and flexibility demanded by modern power systems.

Core Features & Business Value

✓ Comprehensive Protection Functions
Integrated overvoltage (59), undervoltage (27), overfrequency (81O), and underfrequency (81U) protection with phase sequence monitoring. Reduces risk of transformer saturation, generator damage, and load shedding failures.

✓ Wide Voltage & Frequency Range
3-phase voltage inputs spanning 10–250 V with 40–70 Hz frequency monitoring. Adapts to diverse grid configurations and regional standards, minimizing inventory complexity.

✓ Flexible I/O Configuration
4 programmable digital inputs, 4 Form-C relay outputs (5 A @ 250 VAC), plus dedicated trip output. Enables custom logic for load control, alarm escalation, and remote SCADA integration.

✓ Modbus RTU Communication
RS485 port with Modbus RTU protocol for seamless integration into existing DCS, SCADA, or EMS platforms. Supports remote diagnostics, event retrieval, and setpoint adjustments without site visits.

✓ Local LCD Interface
Backlit display with keypad for on-site commissioning, real-time metering, and alarm review. Reduces dependency on external tools during installation and troubleshooting.

→ Rugged Environmental Design
Operates reliably from -40°C to +60°C with 95% humidity tolerance. Panel-mount or 19-inch rack installation suits harsh industrial environments and compact control rooms alike.

Typical Application Scenarios

Power Generation Facilities
Protects synchronous generators from grid disturbances during islanding, load rejection, or frequency excursions. Prevents mechanical stress on turbine-generator sets and maintains compliance with grid codes.

Industrial Distribution Networks
Monitors incoming utility feeds and critical process loads in manufacturing plants, data centers, and mining operations. Triggers automatic transfer switches or load shedding to preserve production continuity.

Substation Feeder Protection
Safeguards medium-voltage feeders in utility substations against voltage sags, swells, and frequency drift. Coordinates with upstream breakers to isolate faults while maintaining service to healthy circuits.

Renewable Energy Integration
Ensures grid-compliant operation of wind farms and solar inverters by detecting voltage and frequency deviations. Supports anti-islanding protection and ride-through requirements per IEEE 1547.

Marine & Offshore Platforms
Provides reliable protection for shipboard power systems and offshore drilling rigs where environmental extremes and limited maintenance access demand robust, self-contained relays.

Technical Parameters & Selection Guide

Selection Criteria: Verify auxiliary voltage compatibility (HI00 suffix = 110–250 VDC/AC). Confirm voltage input range matches your PT secondary ratings. For applications requiring DNP3 or IEC 61850, consider newer SR series alternatives. Consult factory documentation (GEK-106623) for detailed setpoint calculations and CT/PT burden analysis.

Extended Functions

Event Recording & Diagnostics
Internal memory logs voltage, frequency, and relay status during disturbances. Retrieve event records via Modbus or local display for root-cause analysis and regulatory reporting.

Programmable Logic
Customize trip/alarm logic using digital inputs and output contacts. Implement time-delayed tripping, sequential load shedding, or interlocking with external devices without additional PLCs.

EnerVista Software Integration
Leverage GE's EnerVista suite for offline setpoint development, relay simulation, and firmware updates. Streamlines commissioning across multi-relay installations and standardizes documentation.

Delivery & Service Assurance

Lead Time: Standard stock items ship within 3–5 business days. Custom configurations or bulk orders may require 2–3 weeks—contact our team for expedited options.

Warranty: 12-month manufacturer-backed warranty covering defects in materials and workmanship. Extended service agreements available for critical applications.

Technical Support: Access to application engineers for setpoint calculations, Modbus mapping, and integration troubleshooting. Remote commissioning assistance and on-site services available upon request.

Documentation Package: Includes installation manual (GEK-106623), wiring diagrams, Modbus register map, and test certificates. Digital copies provided via email; printed manuals available on request.

Frequently Asked Questions

How does the MIVII3000E00HI00 integrate with existing SCADA systems?
The relay communicates via RS485 using Modbus RTU protocol. Connect to your SCADA RTU or gateway using standard twisted-pair cabling. Modbus register maps are documented in the user manual for seamless data polling and setpoint writes.

What voltage and frequency setpoint ranges are supported?
Voltage thresholds are adjustable from 10–250 V (line-to-neutral or line-to-line, depending on PT configuration). Frequency setpoints span 40–70 Hz with 0.01 Hz resolution, accommodating both 50 Hz and 60 Hz systems.

Can this relay reduce energy costs or improve power quality?
While primarily a protection device, the relay prevents equipment damage that leads to unplanned outages and repair expenses. By enabling load shedding during frequency sags, it helps maintain grid stability and avoid demand charges from utility penalties.

What are the panel cutout dimensions for installation?
The relay mounts in a standard 19-inch rack or requires a panel cutout of approximately 165 mm (W) × 120 mm (H). Refer to the installation manual for exact dimensions and clearance requirements.

Does the relay support remote monitoring and diagnostics?
Yes. Real-time voltage, frequency, and relay status are accessible via Modbus RTU. Event logs and alarm history can be retrieved remotely, reducing the need for on-site inspections and enabling predictive maintenance strategies.

Is the MIVII3000E00HI00 suitable for marine or offshore environments?
The relay's wide operating temperature range (-40°C to +60°C) and humidity tolerance (95% non-condensing) make it well-suited for harsh environments. Ensure proper enclosure sealing and corrosion-resistant mounting hardware for marine applications.

Ready to Protect Your Power Systems?

Contact our technical sales team to discuss your voltage and frequency protection requirements. We'll help you select the right configuration, provide application support, and ensure fast delivery to keep your project on schedule.

© 2026 NINERMAS COMPANY LIMITED. All rights reserved.
Original Source: https://ninermas.com
Contact: sale@ninermas.com | +0086 187 5021 5667