CHAPTER 1: OVERVIEW
MIV AND MIV II RELAYS
3 SERIES RETROFIT – INSTRUCTION MANUAL
5
1.3
MIV and MIV II relays
MIV and MIV II features are available in 350 relays as described in the table below:
Installed Relay
Retrofit Relay
MIV II Voltage/Frequency Relay
MIV Voltage/Frequency Relay
350 Feeder Protection System
Feature
MIV
MIV II
350
1
Protection &
Control
UV: 27(2)
OV: 59(2), 59N(2)
Underfrequency: 81U(2)
Overfrequency: 81O(2)
Phase reversal: 47(1)
UV: 27P(4)
OV: 59P(4), 59N(4)
Underfrequency: 81U(4)
Overfrequency: 81O(4)
Phase reversal: 47(1)
Note: the number of elements
differs for different MIV II options.
Maximum numbers are shown.
UV: 27P(4), 27X(1), 27P_1(1)
OV: 59P(4), 59N(4), 59X(1), 59_2(2)
Underfrequency: 81U(4)
Overfrequency: 81O(4)
Other Protection: 25(1), VTFF(1),
24(1) Volt/Hz
Oscillography
8 samples/cycle
maximum length 24 cycles
MIV 1000 & 3000:
8 samples/cycle
maximum length 24 cycles
MIV 2000:
2 samples per cycle
maximum length 432 cycles
up to 32 samples per cycle
(user-selectable)
maximum length 192 cycles
Communication
s
Serial (RS232, RS485)
protocols: Modbus RTU
Serial (RS232, RS485)
protocols: Modbus RTU
USB
Serial (RS485) protocols: Modbus RTU,
DNP 3.0, IEC 60870-5-103
Ethernet protocols: Modbus TCP/IP,
DNP 3.0, IEC 60870-5-104, IEC 61850
GOOSE, IEC 61850, OPC-UA
Hardware
2 digital outputs
6 relay outputs
Configurable I/O
Configurable Logic
2 fixed LEDs
4 configurable LEDs
2 digital inputs
6 digital outputs
Configurable I/O
Configurable Logic
2 fixed LEDs
4 configurable LEDs
10 inputs
7 outputs (2 Form A, 5 Form C)
Configurable I/O
Configurable Logic
10 LEDs (non-programmable LEDs)
12 LEDs (programmable LEDs)
1. For additional features, refer to the
350 Instruction Manual.