The AMF relay is a micro-controller based unit which automates generator start and stop actions during mains failure by controlling both mains and generator contactors. It also measures voltage, current and frequency and displays it on a 20 x 4 LCD. It has 12 LEDs for different indications. All programmable parameters are password protected and are stored in a non volatile memory and thus all information is retained in the event of complete loss of battery power. AMF can be operated in "AUTO","QAUTO" (Quick Auto) or "MANUAL" mode. The unit features a non-erasable incremental "DG run hour" and "maintenance hour. This unit is meant for use in three phase four wire systems. The "CT ratio" is site selectable. The unit is powered by a wide input (9-36VDC) power supply, which makes it suitable for both 12V and 24V battery systems.
| Parameter | |||
|---|---|---|---|
| Type | Name | Statistics | |
| Input | Three Phases and Neutral of a 3P4W | ||
| Voltage | Direct Voltage Input: Up to 300V L-N Burden: 0.5VA |
||
| Current | Secondary Current Input : 5A or 1A (Site Selectable) CT Ratio : Site Selectable Range of Reading : 5 – 5000A Burden : < 1.0VA Overload : 5A CT = 6A RMS Continuous 1A CT = 1.2A RMS Continuous |
||
| Power Supply | 9-36V DC | ||
| Output | Relay | Six Relays(NO) Switching Voltage : Max. 250 VAC Switching Current : 6 A (Resistive load) Expected Mechanical Life : >1X10 switching operations Expected Electrical Life : > 5X10 switching operations |
|
| Measurment | True RMSBasicParameters | Voltage (Volts L-N ) | VL-N Accuracy : 1.0% of Reading |
| Current(Amps IR, IY, IB) | Accuracy : 0.25 % of Reading | ||
| Line Frequency | 45 to 55 Hz, Accuracy : 0.3% of Reading | ||
| Dimensions | Bezel | 144 X 144 mm | |
| Panel Cutout | 138 X 138 mm | ||
| Depth of installation | 55 mm | ||
| Display | 20 X 4 Backlit LCD | ||
| Operating temp | 10°C to 50°C | ||
| Weight | 0.58 Kgs (Approx.) | ||
| Operating Current Range | 0.4% to 120% of CT primary | ||
| Parameter |
|---|
| Input | Three Phases and Neutral of a 3P4W | |
| Input | Voltage | Direct Voltage Input : Up to 300V L-N Burden : 0.5VA |
| Input | Current | Secondary Current Input : 5A or 1A (Site Selectable) CT Ratio : Site Selectable Range of Reading : 5 – 5000A Burden : < 1.0VA Overload : 5A CT = 6A RMS Continuous 1A CT = 1.2A RMS Continuous |
| Input | Power Supply | 9-36V DC |
| Output | Relay | Six Relays(NO) Switching Voltage : Max. 250 VAC Switching Current : 6 A (Resistive load) Expected Mechanical Life : >1X10 switching operations Expected Electrical Life : > 5X10 switching operations |
| Measurement - True RMS Basic Parameters | Voltage (Volts L-N) | VL-N Accuracy : 1.0% of Reading |
| Measurement - True RMS Basic Parameters | Current(Amps IR, IY, IB) | Accuracy : 0.25% of Reading |
| Measurement - True RMS Basic Parameters | Line Frequency | 45 to 55 Hz, Accuracy : 0.3% of Reading |
| Dimensions | Bezel | 144 X 144 mm |
| Dimensions | Panel Cutout | 138 X 138 mm |
| Dimensions | Depth of installation | 55 mm |
| Dimensions | Display | 20 X 4 Backlit LCD |
| Dimensions | Operating temp | 10°C to 50°C |
| Dimensions | Weight | 0.58 Kg. (Approx.) |
| Dimensions | Operating Current Range | 0.4% to 120% of CT primary |
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