Reclosers
Hughes ACR series of reclosers is clearly the most advanced and safest product of its kind on today's market. It is built to remain in operation for more than 30 years without major maintenance. The model range is available for 6/15, 22/27 and 33/40kV.
- Non enclosed switch for extra safety
- Integrated disconnector for personal safety
- Solid insulated. No harmful SF6 gas
- Operation On and Off with full load without electric power
- Core balance transformer for detecting low earth faults
- Frame of "Marine grade" premium stainless steel
ACR240 RECLOSER SERIESDESCRIPTION
Hughes ACR240 series of recloser is designed for use on overhead distribution lines with the voltage range 22-27kV, in distribution substation applications and as an advanced Smart Grid building block.
The ACR240 series model range:
- ACR240 model has the OVX240 vacuum circuit breaker equipped with 24kV bushings, built-in disconnector and voltage sensors on the load side;
- ACR241 model has the OVX241 vacuum circuit breaker equipped with 27kV bushings and with 1 or 2 sets of voltage sensors on feed and/or load side;
ACR240 RECLOSER SERIESACR240 MODEL
The ACR240 recloser set includes:
- OVX240 vacuum circuit breaker (compulsory);
- FTU recloser control cabinet (compulsory);
- Interconnecting cable (compulsory);
- Built in components (optional);
- External accessories (optional);
The OVX240 vacuum circuit breaker components:
- 24kV bushings (1) of epoxy with silicone surface;
- Integrated and synchronized disconnector (2) with visible open points on all 3-phases;
- Integrated 3x phase current transformers (3) with built-in voltage sensors on load side;
- High current vacuum breaker element (1), AMF type for 630 or 1250A continuous line load and 20kA fault current in 3 sec
- Attachment points (6) for down pole mounted disconnector operation handle;
- Frame (7) made of 5 and 4mm stainless steel to eliminate electrochemical corrosion;
- Electrical circuit (8) made of high grade copper;
- Manual maneuvering of both vacuum interrupter and disconnector;
Optional components:
- Integrated 1x core balance CT for detecting low earth faults;
ACR240 RECLOSER SERIESACR241 MODEL
The ACR241 recloser set includes:
- OVX241 vacuum circuit breaker (compulsory);
- FTU recloser control cabinet (compulsory);
- Interconnecting cable (compulsory);
- Built in components (optional);
- External accessories (optional);
The OVX241 vacuum circuit breaker components:
- Extra insulation with 27kV bushings (1) of epoxy with silicone surfacewith built-in voltage sensors on feed side;
- Integrated 3x phase current transformers (2);
- High current vacuum breaker element (4), AMF type for 630 or 1250A continuous line load and 20kA fault current in 3 sec
- Frame (5) made of 5 and 4mm stainless steel to eliminate electrochemical corrosion;
- Electrical circuit (6) made of high grade copper;
- Manual maneuvering of vacuum interrupter;
Optional components:
- Integrated 1x core balance CT (3) for detecting low earth faults (optional);
- Voltage sensors on load side;
ACR240 RECLOSER SERIESADDITIONAL ACCESSORIES
the acr240/241 RECLOSER EXTERNAL ACCESSORIES:
- Rugged mounting brackets (1) for different pole types;
- New! Grounding system cable theft alarm (2). See details here;
- Antenna set for GSM/4G including: antenna, multi band professional glass fibre rod; pole mounted bracket for antenna; antenna cable 8M RG-213 N-N professional connectors and surge arresters for antenna N-N connectors;
- Voltage transformer for 22/27kV, phase to phase connected, epoxy insulated with pole mounting brackets;
- Insulations transformator 230/230 VAC
- Surge arresters (3) for 22/27kV with mounting brackets;
- Drop out fuses (4) for 22/27kV with mounting brackets;
Complete list of additional accessories is here.
ACR240 RECLOSER SERIESINSTALLATIONS
The ACR240/241 models of reclosers can be installed on one wooden, concrete pole or steel structures.
The standard installation includes below elements in the following sequence:
- Voltage transformer (1)
- Vacuum circuit breaker (2)
- Interconnecting cable (3)
- Recloser control cabinet (4)
ACR240 RECLOSER SERIESTECHNICAL DATA
| Description | ovx240 | ovx241 | |
| Rated operation voltage, VDC | 24-48-110 | 24-48-110 | |
| Rated maximum voltage, kV | 24 | 27 | |
| Rated basic impulse level, P>P, kV | 145 | 145 | |
| Rated basic impulse level, P>E, kV | 125 | 125 | |
| Power frequency withstand, Dry, kV | 60 | 60 | |
| Power frequency withstand, Wet, kV | 50 | 50 | |
| Rated power, W | 40 | 40 | |
| Rated continuous current, A | 630 | 1250 | |
| Rated fault making current, kA | 50 | 50 | |
| Rated fault breaking current, kA | 20 | 20 | |
| Cable charging current, A | 20 | 40 | |
| Line charging current, A | 5 | 10 | |
| Rated fault duration time, s | 3 | 3 | |
| Contact resistance, VCB, µΩ | < 35 | < 35 | |
| Contact resistance, ABI, µΩ | < 60 | NA | |
| Network frequency, Hz | 50/60 | 50/60 | |
| Description | Winding 1 | Winding 2 | Winding 3 |
| Phase CT type 1 | 200/1 | 400/1 | 600/1 |
| Core balance CT | 20/1 | ||
| Description | |||
| Design min mechanical/electrical | 20.000 | 20.000 | |
| Dimensions (LxWxH), mm | 882x772x957 | 872x370x900 | |
| Mass (weight) without air break switch - kg (lbs) | 101 (222) | 101 (222) | |
| Mass (weight) with air break switch - kg (lbs) | 125 (275) | NA | |
| Description | |||
| Operating temperature C | -45 - +70 | -45 - +70 | |
| Humidity | 100% at 25 C | 100% at 25 C | |
| Eclosure | IP55-65, non-magnetic stainless steel, optional painted in RAL or ANSI colour | ||
| Bushing type | Epoxy core with silicone surface | ||
| Phase to phase distance, mm | 280 | 280 | |
| Creep distance to ground (disconnector isolator), mm | 725 | NA | |
| Creep distance to ground (interrupter isolator), mm | 960 | 1090 | |
| Max installation altitude at rated BIL, mm | 3000 | 3000 | |
| Description | |||
| Design specification | IEC 62271-100 | ||
| Marking specification | IEEE std C37.60 | ||
| Operation sequence, no charge | 25 ms trip - 50 ms close - 25 ms trip | ||
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