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P a g e
OVR-15, 27 & 38 LV cabinet Instruction Manual
Sr.
No.
Protection
IEC61850
Identification
Setting range
available in
RER615
For OVR-15 Recloser
600/1A CT & 15.5kV System Voltage
For OVR-27 Recloser
600/1A CT & 27kV System Voltage
For OVR-38 Recloser
600/1A CT & 38kV System Voltage
Setting Range to be
used
(in Nominal Values)
Setting Range to be
used
(in Absolute Values)
Setting Range to be
used
(in Nominal Values)
Setting Range to be
used
(in Absolute Values)
Setting Range to be
used
(in Nominal Values)
Setting Range to be
used
(in Absolute Values)
Start value Freq>
FRPFRQ
0.9000...1.2000 ×
fn
0.9000...1.2000 × fn
0.9000...1.2000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
0.9000...1.2000 ×
fn
0.9000...1.2000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
0.9000...1.2000 ×
fn
0.9000...1.2000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
Start value Freq<
FRPFRQ
0.8000...1.1000 ×
fn
0.8000...1.1000 × fn
0.8000...1.1000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
0.8000...1.1000 ×
fn
0.8000...1.1000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
0.8000...1.1000 ×
fn
0.8000...1.1000 ×
fn : Calculate with
Fn=50 or 60Hz as
per requirement
Start value df/dt
FRPFRQ
-0.200...0.200 ×
fn/s
-0.200...0.200 × fn/s
-0.200...0.200 ×
fn/s : Calculate
with Fn=50 or
60Hz as per
requirement
-0.200...0.200 ×
fn/s
-0.200...0.200 ×
fn/s : Calculate
with Fn=50 or
60Hz as per
requirement
-0.200...0.200 ×
fn/s
-0.200...0.200 ×
fn/s : Calculate
with Fn=50 or
60Hz as per
requirement
Operate Tm Freq
FRPFRQ
80...200000 ms
80...200000 ms
80...200000 ms
80...200000 ms
80...200000 ms
80...200000 ms
80...200000 ms
Operate Tm df/dt
FRPFRQ
120...200000 ms
120...200000 ms
120...200000 ms
120...200000 ms
120...200000 ms
120...200000 ms
120...200000 ms
13
Negative-sequence overvoltage protection (NSPTOV) main settings
Start value
NSPTOV
0.010...1.000 × Un 0.010...1.000 × Un
155-15500
0.010...1.000 × Un 270-27000V
0.010...1.000 × Un 380-38000V
Operate delay time
NSPTOV
40...120000 ms
40...120000 ms
40...120000 ms
40...120000 ms
40...120000 ms
40...120000 ms
40...120000 ms
14
Residual overvoltage protection (ROVPTOV) main settings
Start value
ROVPTOV
0.010...1.000 × Un 0.010...1.000 × Un
155-15500
0.010...1.000 × Un 270-27000V
0.010...1.000 × Un 380-38000V
Operate delay time
ROVPTOV
40...300000 ms
40...300000 ms
40...120000 ms
40...300000 ms
40...120000 ms
40...300000 ms
40...120000 ms
15
Negative phase-sequence overcurrent protection (NSPTOC) main settings
Start value
NSPTOC
0.01...5.00 × In
0.01...5.00 × In
6-3000A
0.01...5.00 × In
6-3000A
0.01...5.00 × In
6-3000A
Time multiplier
NSPTOC
0.05...15.00
0.05...15.00
0.05...15.00
0.05...15.00
0.05...15.00
0.05...15.00
0.05...15.00
Operate delay time
NSPTOC
40...200000 ms
40...200000 ms
40...200000 ms
40...200000 ms
40...200000 ms
40...200000 ms
40...200000 ms
16
Phase discontinuity protection (PDNSPTOC) main settings
Start value (Current ratio setting
I2/I1)
PDNSPTOC
10...100%
10...100%
10...100%
10...100%
10...100%
10...100%
10...100%
Operate delay time
PDNSPTOC
100...30000 ms
100...30000 ms
100...30000 ms
100...30000 ms
100...30000 ms
100...30000 ms
100...30000 ms
Min phase current
PDNSPTOC
0.05...0.30 × In
0.05...0.30 × In
30-180A
0.05...0.30 × In
30-180A
0.05...0.30 × In
30-180A
17
Circuit breaker failure protection (CCBRBRF) main settings
Current value (Operating phase
current)
CCBRBRF
0.05...1.00 × In
0.05...1.00 × In
30-600A
0.05...1.00 × In
30-600A
0.05...1.00 × In
30-600A
Current value Res (Operating residual
current)
CCBRBRF
0.05...1.00 × In
0.05...1.00 × In
30-600A ( with I0
setting=1A) ; 6-
120A (with I0
setting=0.2A)
0.05...1.00 × In
30-600A ( with I0
setting=1A) ; 6-
120A (with I0
setting=0.2A)
0.05...1.00 × In
30-600A ( with I0
setting=1A) ; 6-
120A (with I0
setting=0.2A)