Solutions for Protecting andManaging the Electrical Network
ITV 7166 / 7266 / 7366 / 7466
Voltage restrained overcurrent relays
Relays in the ITV 7x66 series have been designed essentially to provide selective protection of generators in the event of over-loads and heavy internal or external faults.
These relays integrates two three-phase overcurrent units whose operating levels are function of the voltage on the terminals of the protected machine. Whilst the high-set operating unit is always of the independent time type, the low-set unit can have a time/current characteristic of dependent or independent time type, depending of the selected model.
PROTECTION FUNCTIONS
- Voltage Restrained Overcurrent [51V]
MAIN FEATURES
- Nominal current: 1 or 5 A (50 or 60 Hz)
- Nominal voltage: 100V - 110V - 120V or 380 V (50 or 60 Hz)
- Current setting ranges: low threshold I> : 0,5 - 2 In, high threshold I>> : 1 - 8 In
- Tripping time ITV 7166: t(I>): 0,5 - 30 sec, t(I>>): 0,1 - 3 sec
- Tripping time ITV 7266 / 7366 / 7466: t(I>): 0,05 - 3 sec at 10Ir, t(I>>): 0,1 - 3 sec
- Voltage unit setting range: low threshold U< : 20 - 40 - 60% Un, t(U<): 0,5 - 30 sec
- n.2 output units (2NO or 1NO+1NC contacts for each unit)
- n.2 indicators LED
DOWNLOADS
Device | Doc. Type | Lang. | Ref. | Index | |
---|---|---|---|---|---|
ITV 7x66 | Leaflet | EN / FR | -- | -- | |
ITV 7x66 | User Manual | IT | MI.1796 | B | |
ITV 7166 | Connection/Definition Diagram | EN / FR | 03A2 | B | |
ITV 7266 | Connection/Definition Diagram | EN / FR | 03A3 | B | |
ITV 7366 | Connection/Definition Diagram | EN / FR | 03A4 | B | |
ITV 7466 | Connection/definition Diagram | EN / FR | 03A5 | B |