SYCON-7800
SYCON-7800
The earth fault is sensed by measuring the neutral current. Normally in the three-phase system the vector sum of three-phase current is zero hence no current flows from neutral to earth. If a ground fault occurs the vector sum is not zero. If we can sense the current from neutral to earth we will get the residual current which we can say as earth fault current. Sensing this current calibrated we can compare with the set point to detect the earth’s fault.
| Order code | Current Range | Tripping Time |
|---|---|---|
| SYCON 7721 | 30 mA to 300 mA | 0.15 Sec To 3 Sec |
| SYCON 7722 | 300 mA to 3 A | 0.15 Sec To 3 Sec |
| SYCON 7723 | 1 A to 8 A | 0.15 Sec To 3 Sec |
- Solid-state
- Wide operating current range.
- Low power consumption
- Variable current and time setting
- Ideal for compliance to I E rule 61-A.
- Healthy & Fault Indication
- Site settable Current & Time
- Reset Facility
- Test Mode Facility
| Input Auxiliary Supply | 230 VAC (110 VAC & 415 VAC optional) |
|---|---|
| Current Sensitivity | Variable from 10 % to 80 % ,settable with DIP switches in three different models |
| Trip Time | From 0.15 Seconds to 3.00 seconds settable with DIP switches |
| Relay Contacts | Potential free NO-C-NC, 10Amps at 250 VAC contacts |
| Trip Indication | LED |
| Dimensions | 96(L) x 96(W) x 60(D) mm |
|---|---|
| Panel Cutout | 91 mm X 91 mm |
