AFR-4 Arc Flash Detection Relay with 4 Channels
AFR-4 arc flash detection relay is a versatile and independently operating device for bay based protection. It supports 4-channels arc
Technology of Electrical Automatic
Safeguard Portable and Stationary Generators
Blue Jay delivers purpose‑built protection for all generator types, covering mobile gensets, large hydro‑/turbine generators and low‑voltage standby generators. Our custom solutions mitigate insulation degradation, arc‑flash and ground‑fault risks to reduce unplanned downtime and protect personnel and critical assets.
Monitoring & Protection Solutions for Generators
For generator installations, our portfolio of monitoring and protection soulution covers power meters, insulation monitoring devices (IMDs), arc‑flash relays, earth‑leakage relays and partial‑discharge monitoring systems. These soulutions enable performance tracking, insulation health supervision, fast arc‑fault clearing and ground‑fault detection across different generator setups.
Electrical Safety for Mobile Generators
Mobile generators supply power for construction and emergency use. Harsh environments with high humidity, dust and vibration may trigger internal arc and earth faults; limited working space increases safety risks. Protection schemes depend on system earthing:
– IT (ungrounded) systems: Insulation monitoring devices provide real-time alerts for insulation deterioration.
– TN & TT earthed systems: Earth leakage relays detect subtle earth faults, complemented by arc flash relays to quickly isolate arc faults and protect personnel and generator equipment.
Electrical Safety for Large Stationary Generators
Large stationary hydro and turbine generators suffer stator‑winding insulation degradation from heat, electrical stress, moisture and mechanical loads. Over 80% of winding faults exhibit pre‑emptive partial discharge.
The generator‑terminal‑to‑breaker segment is a known protection blind spot. Faults create bidirectional energy feed‑in and high‑energy arcs. These medium‑voltage gesets commonly use high‑resistance, resonant or IT‑ungrounded neutrals; excitation circuits carry insulation risks.
‑ Partial‑discharge monitoring tracks insulation decay.
‑ IMDs monitor insulation with varying excitation voltages.
‑ Arc‑flash relays mitigate blind‑zone arc flash hazards.
‑ High‑resistance‑grounded earth‑leakage relays deliver ground‑fault protection.
Electriclal Safety for Fixed Standby or Backup Generators
Stationary low‑voltage standby diesel and gas gensets serve factories and data centers. They support TN, TT, and IT grounding schemes, and insulation ages with extended run‑time. Switchgear and outgoing busbars are prone to fault arcs, creating equipment and personnel hazards.
IT systems use IMDs for insulation supervision. TN‑TT systems deploy leakage‑current relays. Arc‑flash relays deliver fast arc‑fault protection for cabinets and outgoing circuits.
Success Reference for Safeguarding Generators
Whether for mobile emergency units, large hydro‑turbine power‑plant generators or low‑voltage backup sets, Blue Jay’s full‑range monitoring and protection solution helps maintain reliable generator operation.Our solutions are widely deployed in industrial diesel generators, hospital backup generators, data‑center power supplies and other critical generator installations.
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