Protective Elements
Functionality and Tripping Logic
For each of the voltage protection elements it can be defined if it picks up when over- or undervoltage is detected in
one of three, two of three or in all three phases. The dropout ratio is settable.
Functionality and tripping logic, part 1.
827
MCDLV4
DOK-HB-MCDLV4-2E
V
VProtection_Y01
V = V[1 ]...[n]
IL1
IL2
IL3
≥1
t
V .
t-delay Imin
0
&
≥1
&
active
inactive
V .
Imin release check
active
V .
Meas Circuit Superv
inactive
&
38a
38 b
≥1
12a
12b
V<
V .
Mode
V>
Device planning
True RMS
Fundamental
V .
Measuring method
Vavg
Φ
VL1
VL2
VL3
V .
Threshold Imin
V .
V< Reset%
V .
V> Reset%
V .
V<
V .
V>
Phase to Phase
V .
Measuring Mode
Phase to Ground
&
&
&
2
Please Refer To Diagram: Blockings
(Stage is not deactivated and no active blocking signals)
V . Imin release active
L1
Please Refer To Diagram: “VProtection _Y02”
L2
Please Refer To Diagram: “VProtection _Y02”
L3
Please Refer To Diagram: “VProtection _Y02”
Summary of Contents for HighPROtec MCDLV4
Page 3: ...Order Code Order Code 3 MCDLV4 DOK HB MCDLV4 2E...
Page 47: ...Installation and Connection 47 MCDLV4 DOK HB MCDLV4 2E...
Page 164: ...Input Output and LED Settings 164 MCDLV4 DOK HB MCDLV4 2E...
Page 433: ...Parameters 433 MCDLV4 DOK HB MCDLV4 2E...
Page 457: ...Device Parameters 457 MCDLV4 DOK HB MCDLV4 2E...
Page 473: ...Blockings 473 MCDLV4 DOK HB MCDLV4 2E...
Page 988: ...Protective Elements 988 MCDLV4 DOK HB MCDLV4 2E P P Q P Q P Q Q Q P S S...
Page 989: ...Protective Elements 989 MCDLV4 DOK HB MCDLV4 2E Pr Q P Q P Qr...
Page 1023: ...Protective Elements 1023 MCDLV4 DOK HB MCDLV4 2E...