Samlexpower Evolution EVO-2212, Руководство пользователя

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simultaneously). The Bidirectional Transformer works as a battery Charger. The Hot AC
input from the Grid (GRID LINE) or from the Generator (GEN LINE) is fed to the Hot input
of the Bi-directional Transformer for battery charging and at the same time, it is passed
through to the Hot Out (OUTPUT LINE) for powering the AC loads
o
When Grid / Generator power fails, relays K2 / K3 will be de-energized and contact 4
switches over to contact 3. Output from the Inverter Section is fed to the Bi-directional
Transformer and onwards to the Hot Out (OUTPUT LINE) for powering the AC loads
Switching of Output Neutral to Chassis Ground Bonding
o
40A rated SPDT Relay K4 is used to switch the bonding of the Output Neutral Connector
(OUTPUT NEUTRAL) to the chassis of the unit
o
When Grid / Generator Power is available, relay K4 will be energized and contact 4
switches over to contact 5. Neutral input from the Grid (GRID NEUTRAL) or from the
Generator (GEN NEUTRAL) is fed to the Neutral input of the Bi-directional Transformer
for battery charging and at the same time, it is passed through to the Output Neutral
(OUTPUT NEUTRAL) for powering the AC loads. Please note that in this condition, the
Output Neutral (OUTPUT NEUTRAL) is isolated from the chassis of the unit
o
When Grid / Generator power fails, relay K4 will be de-energized and contact 4 switches
over to contact 3. Neutral output from the Inverter Section is fed the Neutral of the
Bi-directional Transformer and onwards to the output Neutral (OUTPUT NEUTRAL) for
powering the AC loads. At the same time, the output Neutral (OUTPUT NEUTRAL) gets
bonded to the chassis of the unit through the mated contacts of the Insulated Quick
Disconnect "QD" located in the AC Wiring Compartment (13, Fig 3.9)
4.5.3 Operation of Transfer and Output Neutral to Chassis Ground Bond
Switching Relays – EVO-3012 and EVO-4024
Refer to Schematic at Fig 4.1(b)
The Bi-directional Transformer is used as follows:
o
Feeds AC output from the Inverter Section when Grid / Generator power is not available.
o
Feeds Grid / Generator power to the Battery Charger Section when Grid / Utility are
available.
Switching of Hot Output (OUTPUT LINE)
o
70A rated DPDT Relays K2 and K3 are used to switch the Hot Output Connector (
OUT-
PUT LINE
) to either the Inverter Section or to the Grid / Generator. Please note that in
this relay, each of the 2 poles is rated for 35A. The 2 poles are used in parallel to increase
the contact current carrying capacity to 70A
o
When Grid / Generator Power is available, relays K2 or K3 will be energized and contacts
7 and 9 will switch over to contacts 4 and 6 respectively (Grid has PRIORITY over Genera-
tor if both are present simultaneously). The Bidirectional Transformer works as a battery
Charger. The Hot AC input from the Grid (GRID LINE) or from the Generator (GEN LINE)
is fed to the Hot input of the Bi-directional Transformer for battery charging and at the
same time, it is passed through to the Hot Out (OUTPUT LINE) for powering the AC loads
o
When Grid / Generator power fails, relays K2 / K3 will be de-energized and contacts 7
and 9 will switch over to contacts 1 and 3 respectively. Output from the Inverter Sec-
tion is fed the Bi-directional Transformer and onwards to the Hot Out (OUTPUT LINE) for
powering the AC loads
SECTION 4 |
General Description & Principles of Operations