Product Number: 489-P1-HI-A20-E
Manufacturer: General Electric
Condition: New & available
Product Type: Generator management relay
Origin: United States
Shipping details: Fedex and UPS, etc
Guarantee: 12 months
Phase current input: P1 = 1 Phase A CT secondary
Control power: HI = 90 to 300 V DC; , 70 to 265 V AC, 48 to 62 Hz
Analog output: A20 = 4 to 20 mA analog output
Display: E = Enhanced display, larger LCD
Weight: 12Kg
Neutral undervoltage
Blocking signal: Low power and low voltage (if delta is open)
Pick level: 0.5 to 20.0V, step size is 0.01 if delta VT is open; Adaptive if wye VT
Delay: 5 to 120 seconds, in 1 step
Picking accuracy:
At £20.0V secondary voltage: Input according to neutral line voltage
At > 20.0V secondary voltage: ±5% of the pickup
Timing accuracy: ± 3.0s
Elements: Trip and alarm
Excitation loss
Pickup level: 2.5 to 300.0 W secondary, step size 0.1, impedance offset adjustable 1.0 to 300.0 W secondary, step size 0.1
Delay: 0.1 to 10.0 seconds, step size is 0.1
Pickup accuracy: Input according to voltage and phase current
Timing accuracy: ±100 ms or ±0.5% of total time
Element: Tripping (using 2 areas of the impedance coil)
Features and applications:
489-P1-HI-A20-E This relay is suitable for applications that require the management and protection of synchronous and induction generators, especially where high accuracy, stability and durability are required.
It provides trip and alarm protection, including neutral line overvoltage and undervoltage and other protection functions.
The P1 code on the relay indicates a phase current input of 1 amp phase CT secondary side, while the E at the end indicates an enhanced display with a larger LCD screen.
It supports analog, voltage, and digital inputs that are critical to the operation of the device and have very specific characteristics.
Meet the standard:
The 489-P1-HI-A20-E relay complies with a range of international standards and specifications. These include dielectric voltage resistance, shock voltage resistance, insulation resistance, damping oscillation, electrostatic discharge, RF immunity, fast transient interference, surge immunity, conducted RF immunity, radiation and conducted emission, sinusoidal vibration, power magnetic immunity, voltage plunge and interruption, inlet protection, and environmental protection (cold and hot).