Three-phase outdoor vacuum Smart recloser/Reclosure 6.6kV 11kV 15kV
Key attributes
| Brand | ROCKWILL |
| Series | RCW |
| Rated voltage | 6.6kV 11kV 15kV |
| Rated current | 400A 630A 800A 1250A |
| Rated short-circuit breaking current | 12.5kA 16kA 20kA 25kA |
| Power frequency withstand voltage | 45kV/min |
| Rated lightning impulse voltage | 125kV |
| Standard | IEC 62271‑1 IEC 62271-111 |
Description
Description
Core Technical Advantages
- Millisecond-Level Fault Self-Healing (FDIR/FLISR): The built-in intelligent recloser controller captures changes in zero-sequence and phase currents with a timing precision of ±10 ms. Utilizing a four-tier protection coordination mechanism, the system automatically isolates permanent short-circuit faults within milliseconds. Field operations prove this limits feeder outage scopes by over 85%.
- Channelless Topology Reconfiguration: The system natively supports virtual sectioning technology, eliminating the need to deploy expensive fiber-optic networks or physical switches along the line. Upon detecting transient faults (e.g., tree branches or bird strikes), the controller auto-reconfigures the topology and executes reclosing within 2 seconds to instantly restore power to unfaulted segments.
- High-Sampling Diagnostic & Adaptive Protection: The integrated high-frequency transient recorder features a high sampling rate of 128 points per cycle, processed via microprocessor diagnostic algorithms. Beyond standard overcurrent protection, it precisely identifies 32 complex grid fault profiles, including low-current grounding faults, high-resistance faults, and intermittent arcing grounds, allowing for adaptive zero-sequence protection.
Parameters
The voltage classes of some of these Automatic Reclosers include 6kV to 69kV. Rated Short-Circuit Breaking Current includes 8kA to 31.5kA and customization is available.
| Parameter Item | Value |
|---|---|
| Rated Peak Withstand Current | 31.5kA |
| Rated Lightning‑impulse Withstand Voltage
|
120kV |
| Operating Sequence | C‑0.5‑CO‑2‑CO‑5‑CO (Magnetic Actuator) |
| Mechanical Life | 30000 times (Magnetic Actuator) |
| Power Supply & Operating Voltage | 110/220V (Customized) |
| Current Transformer Ratio | 400/1A (Customized) |
| Number of Voltage Sensors
|
≤3 |
| Opening Time | ≤30ms (Magnetic Actuator) |
Environmental requirement
| Parameter | Value |
|---|---|
| Maximum Temperature | +40°C |
| Minimum Temperature | -30°C |
| Monthly Average Humidity | 95% |
| Relative Humidity | 90% |
| Altitude Above Sea Level | ≤2500 m |
| Ambient Air Condition | Free from obvious pollution of corrosive and flammable gases or vapors |
Environmental & Operational Experience
- Thermal Cycle & Submersion Durability: Rockwill core components have cleared 100,000 continuous mechanical operations. Under extreme thermal testing -40°C - +75°C and IP68 submersion protocols, the PM mechanism and terminal control box operated with zero mechanical sticking, while heavy-duty aviation plugs blocked all moisture ingress.
- Low-Carbon Compliance Audits: By utilizing solid insulation encapsulation and vacuum interrupters, the RCW series 100% eliminates the use of SF6 (Sulfur Hexafluoride). In international grid modernization tenders, this design has helped utilities pass stringent environmental audits, while removing long-term gas pressure maintenance overheads.
- Anti-Misoperation & Surge Immunity: To address lightning-prone environments, we integrated an enhanced dual-layer surge absorption loop into both the power input and signal processing terminals. In the field, the circuit has successfully neutralized close-range high-voltage induced lightning surges, preventing electronic component breakdowns and nuisance tripping.
Typical Application Scenarios
- High-Altitude & Remote Overhead Networks: Automatic fault sectioning, localization, and physical isolation along long-distance mountain or desert distribution lines.
- Distributed Renewable Grid-Tied Nodes: Medium-voltage side protection for centralized solar PV plants and onshore wind farms, providing real-time power quality monitoring and reverse active/reactive power protection.
- Heavy Industrial Dedicated Feeders: Sub-station distribution centers for semiconductor fabs, petrochemical complexes, and manufacturing hubs requiring sub-second fault self-healing.
Solutions for Auto Circuit vacuum recloser
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High-Load Intelligent Recloser Solution for Nigeria's Industrial ZonesReclosers: Powering Nigeria’s Industrial Resurgence with Smart Grid ResilienceNigeria’s "re-industrialization" drive—spanning automotive manufacturing, mineral processing, and energy-intensive sectors—faces crippling grid constraints. Industrial zones grapple with three critical challenges:Chronic Power InstabilityAging infrastructure triggers frequent faults (e.g., short circuits in Lagos factories, overloads in Delta State gas hubs). Traditional fuses and circuit bre
Reference Projects for Auto Circuit vacuum recloser
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Successful Case of 170 Sets of 11kV Automatic Recloser Project in KenyaAgainst the backdrop of quality upgrading for Kenya’s urban and rural power grids, 11kV auto-reclosers deliver reliable performance to suit local climates and grid conditions. It enables rapid fault isolation and efficient operation and maintenance, forming a core safeguard for the upgrading of Kenya’s urban and rural distribution networks.01 Project Overview1.1 Project BackgroundIn May 2023, 170 sets of 11kV Automatic Reclosers (Model: RCW12M) were officially supplied and applied to
Documentation Resource Library Auto Circuit vacuum recloser
Certifications Auto Circuit vacuum recloser
FAQ for Auto Circuit vacuum recloser
The three-phase outdoor vacuum smart recloser features advanced automatic fault isolation that identifies and isolates permanent faults within milliseconds. By accurately localizing the issue, it can reduce the scope of a power outage by over 85%, ensuring that only the affected section of the grid is disconnected.
Q:What smart restoration capabilities does this three-phase outdoor vacuum smart recloser offer?
A:Equipped with intelligent topology reconfiguration, the three-phase outdoor vacuum smart recloser can restore power to non-faulted sections of the grid in under 2 seconds. This automatic service restoration is critical for maintaining the continuous operation of hospitals, data centers, and other vital infrastructure.
Q: How does the three-phase outdoor vacuum smart recloser utilize AI for grid protection?
A:This three-phase outdoor vacuum smart recloser employs high-frequency transient recording and AI diagnostics to detect up to 32 different types of fault characteristics. This allows for adaptive protection and high-precision sectionalizing with ±10ms timing accuracy, eliminating the need for extra physical switches in the network.
Q:Is the three-phase outdoor vacuum smart recloser environmentally friendly and durable?
A:Yes. The three-phase outdoor vacuum smart recloser is a sustainable solution that uses vacuum arc-extinguishing technology with zero SF6 gas. It is built for extreme durability, with core components validated for 100,000 mechanical operations and an IP68 protection rating that allows it to operate in temperatures from -40°C up to 75°C.
