Smartgen HAT880 Series, User Manual

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HAT880 SERIES DUAL POWER BYPASS CONTROLLER USER MANUAL
HAT880 Series Dual Power Bypass Controller 2019-07-11 Version1.1 Page 39 of 49
12 SWITCH OPERATION
12.1 MANUAL OPERATION
Controller shall be in manual mode by pressing button and a LED beside the button will
illuminate.
In manual mode users can control switch transfer by the keys on the panel.
Manual Bypass Switch:
Bypass switch transfer can only operated manually and bypass close/open keys are inactive.
Remote Bypass Switch:
Main switch and bypass switch both can be operated to close or open on the controller. Switch
transfer can also be realized manually via panel keys under the following conditions.
Table 21 – Manual Remote Control of Dual Bypass Switch
Switch
Bypass Switch Locked Bypass Switch Unlocked
Main Switch
Work
Main Switch
Test
Main Switch
Isolation
Main Switch
Work
Main Switch
Test
Main Switch
Isolation
Main Switch Operable Operable Inoperable Inoperable Inoperable Inoperable
Bypass Switch Inoperable Inoperable Inoperable Operable Operable Operable
Mutual Backup Bypass Switch:
Mutual backup bypass switch means main switch and bypass switch can be backup mutually, and
main switch and bypass switch can separately be master and backup.
Table 22 – Mutual And Dual Backup Bypass Switchs
Manual
Close/Open
Master Unlocked, Bypass Locked Master Locked, Bypass Unlocked
Main Switch
Work
Main Switch
Test
Main Switch
Isolation
Main Switch
Work
Main Switch
Test
Main Switch
Isolation
Bypass
Work
▲ ▲ ■ ■ ■
Bypass Test
▲ ▲ ■ ■ ■
Bypass
Isolation
▲ ▲
▲Manual operation for master switch close/open; ■Manual operation for bypass switch close/open
For single bypass system, only bypass S1 close/open can be operated, and bypass S2
close/open can’t be operated and the corresponding S2 close/open keys are invalid.
12.2 AUTOMATIC OPERATION
Controller shall be in auto mode by pressing the button and a LED beside the button will
illuminate. Controller can automatically transfer S1 or S2 power supply according to master settings
and other conditions, meanwhile automatically control genset start according to main abnormal start
and other start conditions.
12.3 SYNCHRONING CLOSE
Synchronizing close is transferring current power side to the other power supply under normal
condition of both S1 and S2. During this pocess synchronizing transfer is needed.