Popis
Tento produkt je zastaralý.
The 2C74 relay provides high speed overcurrent protection for various items of power system plant such as frame earth leakage protection of metal clad switchgear & tank earth fault protection of sub-station power transformers. The 2C74 relay is a single phase device built in a compact size 2M draw out case suitable for rack and flush mounting. Where 3 phase monitoring is required, 3 single phase units should be employed. The relay measuring element is basically an attracted armature unit of simple & rugged construction. The operating coil of this unit is energised from a transformer which is tapped to provide seven (7) current settings. Setting is achieved using a plug bridge arrangement on the front panel.
Features
- High speed operation
- High sensitivity
- 50Hz or 60Hz operation
- Seven (7) current settings using a plug bridge
- Choose from 5 setting ranges
- <10ms operation at 5x setting
- Hand reset mechanical flag
- 2 N/O trip contacts
- Rugged attracted armature sensing element
- Use 3 independent units for 3 phase applications
- Size 2M28 draw out case
- Made in Australia