Rezap+ / Rezap Faultmaster / Rezap Modular / Bidoyng — automatic reclosers for 400 A LV networks
Country: United Kingdom · Model: Rezap+ / Rezap Faultmaster / Rezap Modular / Bidoyng
The Rezap Faultmaster, Rezap Modular, Rezap+ and Bidoyng automatic reclosers are rated 400 A in LV cable networks, and Faultmaster is also made for 630 A. The device is installed in place of a fuse or in parallel with it on a branch feeder. After a self-clearing fault, supply returns without a crew visit, and the data remain for locating the defect.
- Rezap Faultmaster
- multiple reclosing, 400 A (630 A model), radio control up to 30 m, “burn-through” mode +20 % energy
- Rezap Modular
- compact, 400 A, fits 95 % of fuse cabinets, compatible with Bidoyng
- Rezap+
- multiple reclosing with extended fault location, separate power unit and remote
- Bidoyng
- single reclosing via a second fuse link; 400 A, tested up to 50 kA prospective fault current
Technical specifications
| Rezap Faultmaster | multiple reclosing, 400 A (630 A model), radio control up to 30 m, “burn-through” mode +20 % energy |
|---|---|
| Rezap Modular | compact, 400 A, fits 95 % of fuse cabinets, compatible with Bidoyng |
| Rezap+ | multiple reclosing with extended fault location, separate power unit and remote |
| Bidoyng | single reclosing via a second fuse link; 400 A, tested up to 50 kA prospective fault current |
| Functions | single-ended fault location (SELF), load profile, power quality |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Intermittent faults in LV cables burn fuses and repeatedly disconnect customers. After interrupting an overcurrent, Rezap Faultmaster applies voltage again after a delay and records power quality and the load profile for single-ended fault location (SELF). Staff control it by radio from up to 30 m away, without touching a live circuit. The enhanced “burn-through” mode adds 20 % energy at the fault location to clear it or to produce an audible signal for acoustic location. Rezap Modular is even more compact, rated 400 A, and fits 95 % of fuse cabinets. Rezap+ separates the power unit and the portable remote and records developing faults more precisely by measuring voltage and current. Bidoyng performs a single reclosing within a three-minute window. The main fuse works in parallel with a second fuse and a switch, and after the first one blows, the second link is switched in with a programmable delay during which moisture in the cable has time to disperse. The device is tested for a prospective fault current of 50 kA at a load of 400 A, keeps a load profile and calculates the distance to the fault, and the blown link is replaced without interrupting supply. Data from all devices are sent to a cloud analytics service for round-the-clock support of fault location.
How to choose
If multiple reclosing in a standard fuse panel is needed, take Rezap Faultmaster, and for a current of 630 A look for its separate model. Tight cabinets are covered by Rezap Modular, since it fits 95 % of fuse cabinets. Rezap+ suits developed faults and three-phase faults. When one reclosing is enough, choose Bidoyng, tested up to 50 kA. For automation with a 400 A recloser and DNP3 communication, look at Weezap.
Request a price and lead time
Rezap+ / Rezap Faultmaster / Rezap Modular / Bidoyng — automatic reclosers for 400 A LV networks. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What current are the Rezap and Bidoyng devices rated for?
Faultmaster, Modular and Bidoyng are rated 400 A. For Faultmaster there is also a 630 A model.
How does Bidoyng differ from Rezap?
Bidoyng makes one reclosing via a second link within a three-minute window, while Rezap repeats the cycle many times. Bidoyng is tested up to 50 kA of prospective fault current.
What does the “burn-through” mode of Rezap Faultmaster give?
It raises the energy at the fault location by 20 % to clear the defect or to produce a sound for acoustic location.
From what distance can Rezap Faultmaster be controlled?
The radio link works at distances up to 30 m, so the operator does not interact with a live circuit.
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