Automatic re-closing
Clears transient faults with programmable open-close sequences — supply is restored in seconds.
- Multi-shot O-C-O sequences
- Configurable dead times
- Most faults self-heal
Product · Feeder automation
Automatic MV reclosers for self-healing feeders.
Pole-mounted reclosers with an intelligent controller that clear transient faults automatically and lock out on permanent faults. They isolate the faulted section and restore supply to the healthy part of the feeder in seconds — without dispatching a crew — and coordinate with the rest of your protection scheme.
Key specifications
- Voltage: MV 12–38 kV overhead feeders
- Function: auto-reclose + permanent-fault lockout
- Control: intelligent controller with integrated RTU
- Comms: telecontrol & monitoring via SCADA
Capabilities
Most faults are temporary — so most outages are avoidable.
The majority of MV overhead faults are transient (a branch, a bird, a flashover). A recloser rides through them automatically, so customers never see an outage; only permanent faults trigger a lockout.
Permanent-fault lockout
After repeated attempts the recloser locks out, isolating only the faulted section.
- Selective isolation
- Healthy sections stay energised
- Faster fault-finding
Feeder automation
The core building block of self-healing networks and FLISR schemes.
- Sectionalising along the feeder
- Lower SAIDI / SAIFI
- Automatic service restoration
Protection coordination
Works in step with fuses, sectionalisers and other reclosers on the network.
- Fuse-saving schemes
- Recloser-to-recloser coordination
- Selective time/current curves
Intelligent controller & RTU
Built-in protection and telecontrol — overcurrent, earth fault and directional logic.
- Integrated CTs / VTs measurement
- Event and fault logging
- Local & remote configuration
SCADA remote control
Open, close and monitor the recloser from the control centre in real time.
- Remote open / close
- Live status & alarms
- Cellular / fibre / serial link
Technical selection
Typical specifications.
Indicative characteristics — exact values depend on the selected Four-Faith model (e.g. F-NR300). Ask us for the datasheet matched to your network.
| Characteristic | Typical value |
|---|---|
| Network voltage | MV 12 / 24 / 38 kV overhead feeders (model-dependent) |
| Interruption | Vacuum interrupter |
| Reclose sequence | Programmable, multi-shot (open-close-open) |
| Measurement | Integrated current and voltage sensors (CT / VT) |
| Protection | Overcurrent, earth fault, directional (model-dependent) |
| Control | Intelligent controller with integrated RTU |
| Communication | Cellular, fibre or serial uplink to SCADA |
| Remote control | Open / close, telecontrol, event logging |
| Mounting | Pole-mounted, in-line on overhead feeders |
| Power supply | Mains tap with backup battery |
How it works
Trip, wait, re-close — then lock out.
On a fault, the recloser trips, waits a set dead time and re-closes. If the fault has cleared, supply is back and nobody noticed. If it persists after the programmed shots, it locks out — isolating only the faulted section.
/01
Transient fault
The recloser trips instantly to interrupt the fault current.
/02
Auto re-close
After a short dead time it re-closes; if the fault is gone, supply is restored.
/03
Lockout & report
On a permanent fault it locks out and reports the event to SCADA.
300+
Fault detectors deployed on the CI-ENERGIES network
As part of the NEDA project (World Bank funding), more than 300 fault detectors were installed on the Ivorian distribution network — proof, at scale, of what distribution automation delivers, delivered by the ENERTEC group.
NEDA PROJECTCI-ENERGIES
WORLD BANKFunding
WORLD BANKFunding