Description
1.Unboxing & Physical Snapshot (Dynamic List)
- Brand & Model: GE Vernova / Alstom / Grid Solutions MVAJ Series High-Burden Auxiliary Tripping Relay — MVAJ101RB0800A
- Physical Dimensions: Standard Midos size 2 draw-out case enclosure profile (approx. 17.0 cm x 10.3 cm x 20.0 cm)
- Estimated Shipping Weight: 1.5 kg (Packaged within high-density protective foam and rigid corrugated casing)
- What’s in the Box: Modular hinged-armature relay assembly in draw-out case, terminal blocks, standard manual reset flag indicator, and factory compliance certification tags. (Note: Substation mounting brackets and test plugs are ordered separately).
2.Product Introduction
Substation automation and high-voltage protection schemes require robust intermediate interface relays to directly operate heavy circuit breaker trip coils while isolating sensitive protection devices. Substation technicians slide this high-burden auxiliary relay into standard Midos panel draw-out cases, relying on its fast hinged-armature response and capacitance discharge immunity to prevent spurious trips during battery earth faults.
System reliability mandates deploying authentic OEM auxiliary hardware rather than unverified surplus alternatives. Utilizing this exact MVAJ trip relay ensures strict operating speed thresholds and high contact capacity, guaranteeing dependable circuit breaker clearance during high-voltage network faults.
3.Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer / Product Family | GE Vernova / Alstom / Grid Solutions MVAJ Range |
| Catalog Model Number | MVAJ101RB0800A |
| Relay Function Type | High-burden auxiliary tripping and control relay |
| Action Speed | Fast operation (typically under 10ms for trip configuration) |
| Operating Voltage | DC auxiliary supply with high burden capacitance discharge immunity |
| Indicator Flag | Standard manual reset operation flag |
| Enclosure Case | Midos Size 2 draw-out chassis design |
| Approximate Unit Weight | 1.5 kg (3.31 lbs) |
- Global Compliance & Industry Certifications
Auditors and utility compliance officers require strict documentation proving that power system protection hardware meets international electrical standards. This auxiliary relay aligns with major global benchmarks, featuring CE Mark conformity for European infrastructure, compliance with ESI and IEC electrical specifications, and robust insulation ratings designed for heavy utility environments.
A verified utility-grade certification ensures that internal coil insulation and contact barriers will safely withstand high transient voltages and high-energy fault currents without breakdown. Verify specific lot certifications with OEM.
5.Long-Term Storage & Asset Preservation Guide (E-E-A-T Goldmine)
Electromechanical and solid-state hybrid auxiliary relays stored in facility warehouses require strict environmental discipline to prevent terminal corrosion and internal contact degradation. Keep the relay unit sealed securely inside its original factory packaging and antistatic barrier bags until the exact day of panel cut-in. Maintain stockroom climate controls with ambient temperatures stable between 10°C and 30°C and relative humidity kept strictly below 60 percent to prevent micro-condensation on internal magnetic coils and mechanical linkages. Because this unit contains precision moving armatures and mechanical flag mechanisms, avoid heavy drop shocks or vibration during shelf storage.
- Physical Installation Prerequisites
Insert the relay module securely into its matching Midos draw-out case mounted on the control panel, ensuring the rear plug-in connectors seat fully before tightening the retaining screws. Ensure the panel earth ground braid connects securely to the case grounding stud to maintain a low-impedance path, and verify that auxiliary DC supply voltages match the relay nameplate ratings precisely before energizing control circuits.
- Buyer’s FAQ (Logistics & Compliance Focus)
- What Harmonized System (HS) tariff code governs international shipments of this auxiliary relay? Electrical relays and automatic control apparatus typically fall under HS code 8536.49 (relays for a voltage exceeding 60 V), though customs brokers should verify exact local rules.
- Does the relay require configuration or firmware flashing prior to installation? The hardware operates via hardwired logic and fixed mechanical configurations, requiring no software setup or firmware loading prior to field commissioning.
- How does the Country of Origin (COO) documentation affect customs clearance? Official manufacturing origin declarations must match commercial export shipping papers precisely to clear customs inspections smoothly without secondary tariff reviews.
- What level of transit insurance is recommended during freight delivery? Full-value commercial cargo insurance paired with shock-impact indicator labels is mandatory to protect precision electromechanical relay assemblies against rough shipping handling.
