Events and registers
The volts-per-hertz overexcitation protection function (abbreviated "VHZ" in event block names)
generates events and registers from the status changes in START, TRIP, and BLOCKED. The user can
select which event messages are stored in the main event buffer: ON, OFF, or both. The function offers
one (1) stage which can be set to definite and/or inverse operating time characteristic.
The events triggered by the function are recorded with a time stamp and with process data values. The
function registers its operation into the last twelve (12) time-stamped registers.
Table. 5.4.22 - 201. Event messages.
Event block name
Event names
VHZ1
(1) Start ON
VHZ1
(1) Start OFF
VHZ1
(1) Alarm ON
VHZ1
(1) Alarm OFF
VHZ1
(1) Trip ON
VHZ1
(1) Trip OFF
VHZ1
(1) Block ON
VHZ1
(1) Block OFF
VHZ1
(2) Start ON
VHZ1
(2) Start OFF
VHZ1
(2) Alarm ON
VHZ1
(2) AlarmOFF
VHZ1
(2) Trip ON
VHZ1
(2) Trip OFF
VHZ1
(2) Block ON
VHZ1
(2) Block OFF
Table. 5.4.22 - 202. Register content.
Name
Description
Date and time
dd.mm.yyyy hh:mm:ss.mss
Event
Event name
Voltages (AB/BC/CA) pre-trig
Start/Trip -20ms voltages
Frequency pre-trig
Start/Trip -20ms frequency
Voltages (AB/BC/AC) fault
Start/Trip voltages
Frequency fault
Start/Trip frequency
Voltages (AB/BC/AC) pre-fault
Start -200ms voltages
Frequency pre-fault
Start -200ms frequency
Trip time remaining
0 ms...1800 s
Used SG
Setting group 1...8 active
Genera
Generattor Commander
or Commander
Instruction manual
Version: 2.07
234
© Arcteq Relays Ltd
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Содержание Generator Commander
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