PRODUCT INFORMATION
EARTH-FAULT indicator
Type TERRA
The earth-fault indicator can be used in radial medium voltage networks with one input and openring networks. The network has to be solidly earthed or low resistance-earthed. The indication of the earth-fault is done by a fl ag indicator. The connection between the earth-fault sensor and the display unit is done by cable. The sensor must be mounted on screened cables. The sensor is divisible and can be retrofi tted on the cable. For the operation of the display device an auxiliary power supply is needed. The power supply can fail after the occurrence of a fault.
The earth-fault indicator type TERRA consists of:
– One display unit for displaying the earth-fault
– One sensor type SE (page 19) for detecting the earth-fault
| Order Data | ||
| Type TERRA | | panel-mounted | 26.20.10 |
| Type TERRA | | surface-mounted | 26.30.10 |
Features and Benefits
Trip currents for earth-fault 20 / 40 / 60 / 80 / 160 A
- Optional: One fixed trip current
Optional: Button to test the function of the display unit
Flag indication
Contacts for remote monitoring
Reset function:
– Optional: Manual
– Optional: by recovering auxiliary power supply
Auxiliary power: 115/230 V AC
Surface-mounted and panel-mounted housing
Optional: Blinking unit type BL4.2 for outdoor indication
