Identification - ABB RELION 670 Series Technical Manual

1MRK 502 066-UUS B
Simplification of the diagram is in the way the IEEE and Tailor-made delays are calculated. The
cooling process is not shown. It is not shown that voltage and frequency are separately checked
against their respective limit values.
9.4.8 Technical data
Table 360: OEXPVPH (24) technical data
Function
Trip value, pickup
Trip value, alarm
Trip value, high level
Curve type
Minimum time delay for inverse
function
Maximum time delay for inverse
function
Alarm time delay
9.5 Voltage differential protection VDCPTOV (60)
9.5.1

Identification

Function description
Voltage differential protection
9.5.2 Functionality
A voltage differential monitoring function is available. It compares the voltages from two three
phase sets of voltage transformers and has one sensitive alarm step and one trip step.
Technical manual
Range or value
(100–180)% of ( VBase /f )
n
(50–120)% of pickup level
(100–200)% of ( VBase /f )
n
IEEE or customer defined
×
(0.18 TD )
=
IEEE t :
- 2
( M 1)
(Equation 197)
EQUATION1645 V1 EN-US
where M = (E/f)/(Vn/fn)
(0.000–60.000) s
(0.00–9000.00) s
(0.00–9000.00)
IEC 61850 IEC 60617
identification identification
VDCPTOV
Accuracy
±0.5% of V
±0.5% of V at V ≤ V
n n
±0.5% of V at V > V
n
±0.5% of V
±5.0 % or ±45 ms, whichever is greater
±1.0% or ±45 ms, whichever is greater
±1.0% or ±45 ms, whichever is greater
±1.0% or ±45 ms, whichever is greater
ANSI/IEEE C37.2
device number
- 60
Section 9
Voltage protection
M13338-2 v11
SEMOD153860-1 v2
SEMOD167723-2 v2
SEMOD153862-5 v7
647