1. SUBTECH
Electronics
Auto main failure (AMF) panel
AMF Panel is used for the automatic operation of the Genset. It’s
sure to provide you the best effort: monitor the power availability both “MAINS” and
“GENERATOR” automatically, and deliver you the power; on the other hand it will monitor the
operation state for Generator while the Generator is running. During Abnormal common fault,
AMF Panel will give feedback both the visual and audio signal to you by LED display.
It will start Genset within 3 seconds after the main supply is cutoff, and connects the load to
Generator after 8 second. As soon as the mains are restored, load will be connected back to the
main after 5 seconds to make the Genset load free. Further, Generator is shut off with a cool
down period of 10 second. In case of the failure at first attempt during starting, it will
automatically try to restart after the intervals of 12 seconds for 2 more times, (Total 3
cranking). However, if the Genset doesn’t start even in third cranking, then Fault indication
will display on the panel along with audio alarm until the reset button is pressed or mains is
restored.
Technical Specifications
Feature Value
Conforming to IS 60947-1
Mains Input Three phase
generator Input Three Phase
Output Three Phase
Capacity 110 Amp.
Suitability for Genset 62.5 KVA
Capacity (Long Life) Up to 75-80% Load
Operating Voltage Range 130-280 VAC. (P&N)
Rated frequency 50 Hz.
Indication Mains, Generator, Load
Ambient Temperature 0 – 60 o
C
Changeover Time 0.5 sec
Dimension (H x W x D) mm 600 x 450 x 160
Panel Sheet G.I Sheet
Sheet thickness 1.2 mm
Switching Details
Switching frequency 1200 Ops./hr
Contact Material Silver alloy
Contact Resistance 2m ohm
Pick up Time 50ms Max
Release Time 50ms Max
Coil Type Dual, 24V DC
Electrical Life 100000 +
Mechanical Life 100000 +
2. SUBTECH
Electronics
Silent Features
Used for Controlling Generator function automatically.
Auto start and Auto stop with 3 Time Cranking with cranking time of 15 sec.
Auto start & Auto Stop Genset.
Overload automatically shut off supply after 10 seconds.
Complete harness of connection & bypass connector inbuilt.
SMPS based battery charger with cut off on full charge.
Latest PMC Technology to overcome Switching Spikes & overheating of coil.
Available in Single / Three phase Microprocessor based ATS.
APS (Auto Phase Selector) for smooth & trouble free operation (in case if any phase
failure APS will automatically select any phase for operation and continue supply).
Importance of AMF Panel
AMF Panel is not just an electrical panel. Basically the sensing
circuit of AMF Panel is detects a power failure. Now the moment the panel detects a power
failure the genset is started automatically. Automatic change over are connected, where the
power supply from the mains is changed over to that of the genset. The genset will run and
provide the power supply until mains power is available again. The sensing circuit in the AMF
panel will detect this and after an adjustable time the automatic changeover will revert back to
mains. The AMF panel must be tested regularly to ensure it is in working order when the mains
fail Otherwise all the money invested in the AMF panel is wasted.
S S POWER SYSTEM
271, Udyog Kendra-II, Ecotech III, Greater Noida,
G. B. Nagar (UP) INDIA – 201306
Web: www.subtech.co.in Phone- +91-120-6492214,15, +91-9311422216 Email:subtech.in@gmail.com
