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U:\ILB\5_Technical Manual\TLB-R1000-480-OS_NO ALL\TLB-R1000_480_MANUAL_Rev03.docx
Page
12
of
35
Safeties
Any alarm condition existing in the load bank is indicated by LOAD BANK ‘SAFETY NOT OK’
indication on the top right corner of the main screen on HMI. To investigate safety NOT OK status,
click <SAFETY> button on Main screen to see following screen (Fig.2)
Fig.2 Safety Parameters
Following table explains various conditions and their settings
Sr.
No.
Alarm Conditions
Settings
Note
1
Over voltage
480VAC, +5%
Set over voltage dial
on E302A protective
relay.
2
Under Voltage
480VAC, -25%
Set under voltage
dial
on
E302A
protective relay.
3
Phase loss
Any one phase from L1/L2/L3
voltage is missing.
4
Phase reverse
Either
of
two
phases
are
connected in reverse order.
5
Current Sense
40A (Three phases current
imbalance)
Settable in fault
settings screen in
