Description
1. Unboxing & Physical Snapshot
- Model & Brand: Alstom / Schneider Electric / GE Multilin (MiCOM / MIF Series Platform) — MIFIIPI55E00HI00 (Numerical Feeder Protection Relay)
- Physical Dimensions: Standard modular flush-mounting case designed for standard switchgear cutout insertion and panel door integration.
- Estimated Shipping Weight: 2.0 kg (4.4 lbs) packed inside industrial anti-static shielding, custom-molded high-density foam, and reinforced double-wall structural corrugated cartons.
- What’s in the Box: MIFIIPI55E00HI00 relay module assembly, plug-in rear terminal connection blocks, factory test data slip, and safety/commissioning documentation insert.
2. Product Introduction
Isolating electrical faults quickly while maintaining selective coordination across medium-voltage distribution networks is essential for preventing widespread blackouts and equipment damage. Operating as an advanced digital protection asset within the MiCOM/MIF protection architecture, the MIFIIPI55E00HI00 provides comprehensive numerical overcurrent, earth fault, and feeder management functions.
Engineered with dual-rated CT inputs, flexible programmable logic, robust transient immunity, and integrated communication ports, the relay processes complex electrical parameters with high precision. Substation automation engineers, utility protection specialists, and industrial electrical contractors rely on this exact hardware configuration to ensure reliable fault clearing and continuous grid stability.
3. Core Technical Specifications
| Parameter | Value |
| Product Series | Alstom / Schneider Electric MiCOM / MIF Feeder Protection Platform |
| Model / Part Number | MIFIIPI55E00HI00 (Numerical Feeder Protection Relay) |
| Protection Functions | Definite and inverse time overcurrent, earth fault, thermal overload, and circuit breaker failure |
| Current Inputs | Dual-rated 1 A / 5 A AC current transformer inputs |
| Auxiliary Power Supply | Wide-range internal SMPS DC/AC auxiliary supply |
| Communication Interface | Rear serial / communication port options for SCADA integration |
| Operating Temperature | -10^\circC to +55^\circC (14^\circF to 131^\circF) |
| Storage Temperature | -25^\circC to +70^\circC (-13^\circF to +158^\circF) |
| Enclosure Rating | IP52 front display interface, IP20 rear terminal blocks |
4. Global Compliance & Industry Certifications
Substation protection electronics must satisfy rigorous international electrical safety and electromagnetic compatibility standards to ensure fault-free operation in high-voltage environments.
- Certifications: CE Conformity, type-tested to IEC 60255 international protection relay standards, and ISO 9001 manufacturing quality compliance.
- Safety Relevance: The high dielectric isolation barriers and internal surge suppression circuits prevent transient overvoltages from damaging low-voltage control logic or triggering false trip commands.
- Audit Note: Keep factory routine test logs, firmware configuration files, and insulation resistance test reports readily accessible to satisfy utility grid compliance audits and NERC/regional regulations.
5. Long-Term Storage & Asset Preservation Guide
Spare numerical relays kept in warehouse stockrooms face internal electrolytic capacitor aging, display degradation, and electrostatic discharge risks over extended storage cycles (—requiring precise environmental control to protect inventory readiness). Preserve your asset by executing these procedures:
- Maintain indoor warehouse climates where storage temperatures stay between -15^\circC and +40^\circC while keeping relative humidity strictly below 80% non-condensing.
- Keep the relay permanently sealed inside its original manufacturer anti-static moisture-barrier bag alongside active desiccant packs until the exact switchgear integration window.
- For units stored for durations exceeding 3 to 5 years, perform a controlled voltage-staging (reforming) procedure on the internal power supply capacitors prior to putting the device into active service.
6. Physical Installation Prerequisites
Proper cutout alignment, terminal torque checking, and auxiliary power verification are mandatory prior to panel energization.
- Clearance Space: Ensure adequate rear cabling space inside the switchgear compartment to route CT and control wires without placing mechanical stress on plug-in terminal blocks.
- Grounding Requirements: Secure a low-impedance copper ground braid from the relay rear earth stud directly to the switchgear backplane ground bus before connecting live circuits.
- Isolation Precautions: Short-circuit all external current transformer (CT) secondary circuits before extracting the relay module from its housing to prevent dangerous high-voltage open-circuit hazards.
7. Buyer’s FAQ (Logistics & Compliance Focus)
Q: What Harmonized System (HS) Tariff Code applies to this protection relay for international shipments?
A: Industrial control relays, numerical protection IEDs, and electrical automatic switches typically classify under HS code 8536.49.0030 or 8538.90.8180 depending on regional customs interpretations. Always verify final classifications with your customs broker.
Q: What primary application does this MiCOM/MIF model serve in power systems?
A: It is engineered specifically for feeder management, primary overcurrent, and backup protection across industrial and utility medium-voltage electrical distribution networks.
Q: What is the Country of Origin (COO) for trade compliance record-keeping?
A: Alstom and Schneider Electric protection automation hardware is manufactured in certified global production hubs (such as the United Kingdom or France), requiring precise country of origin documentation on import paperwork.
Q: Is specialized shock-resistant transit insurance required for international cargo delivery?
A: Yes, because precision microprocessors, LCD display panels, and internal electronic circuit boards are sensitive to drop impacts and logistics vibration, full-value freight insurance is strongly recommended.
