توضیحات
The GE Multilin SR489-P5-LO-A20-E is a compact, cost-effective draw-out protection system designed for small to medium-sized synchronous/induction generators (25–60 Hz). It integrates advanced protection, monitoring, and metering with a 5A phase CT input (P5), low-range control power (LO: 24–60V DC/20–48V AC), 4–20mA analog outputs (A20), and an enhanced display/keypad (E module). Ideal for primary/backup protection in cogeneration and industrial applications, it ensures reliable generator operation while minimizing downtime.
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Current Inputs (P5):
- 5A CT secondary, 0.02–20x CT range, ±0.5% accuracy at <2x CT, ±1% at >2x CT.
- CT withstand: 80x rated current (1s), 40x (2s), 3x continuous.
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Voltage Inputs:
- VT ratio 1.00–240.00:1, 200V AC (phase), 100V AC (neutral), ±0.5% accuracy.
- Max continuous voltage: 280V AC.
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Power Supply (LO):
- 24–60V DC / 20–48V AC (48–62Hz), 25VA typical, 45VA max.
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Analog Outputs (A20):
- 4–20mA, ±1% accuracy, 1200Ω max load.
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Output Relays:
- 6 Form C contacts (10A/30VDC resistive, 10A/120VAC resistive), 10ms operate time.
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Communications:
- RS485: 300–19,200 baud, isolated at 36Vpk.
- Ethernet (optional): 10Mbps copper, Modbus TCP/IP.
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Environmental:
- Operating temp: -40°C to +60°C.
- Humidity: 95% non-condensing.
- Altitude: ≤2000m.
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Certifications:
- UL508, UL1053, CE, CSA, ISO9001 compliant.