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Testermeter- F-ACR Automatic Circuit Recloser
Automatic Circuit Reclosers (ACRs) are outdoor intelligent switch applied in the filed of distribution automation, usually mounted on outgoing line side of substation, tie points of ring network, trunk line of distribution grid, or at the head of important feeder lines, with short-circuit current breaking and making ability, completed with feeder terminal unit (FTU), which can realize multiple reclosing function. When a short-circuit fault occurs on the line, Automatic Circuit Recloser implements cycling operation according to the sequence and time interval. When a permanent fault occurs, after implementing preset cycling operation sequence, Automatic Circuit Recloser is keep opening and block to close to isolate the faulted section. When the fault is removed, a manual reset is needed to release blocking status and implement close operation. When a transient fault occurs, the subsequent opening and closing operations are terminated in the cyclic opening and closing operation, regardless of which reclosing is successful, and initial setting status is restored after a certain delay time.
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Technical Description:
Parameter/Type | 15kV ACR | 27kV ACR | 38kV ACR |
Rated Voltage(kV) | 2.4-14.4 | 24.9 | 34.5 |
Maximum Voltage(kV) | 15.5 | 27 | 38 |
Rated Power Frequency withstand Voltage(kV) | 50/60 | 60/70 | 70/80 |
Rated lightning impulse withstand Voltage(kV) | 110/125 | 125/150 | 150/170 |
Rated Normal Current(A) | 630/800/1000 | 630/800/1000 | 630/800/1000 |
Rated Short Circuit Breaking Current(kA) | 12.5/16 | 12.5/16 | 12.5/16 |
Rated Short Circuit Making Current(kA) | 31.5/40 | 31.5/40 | 31.5/40 |
Rated Short-time withstand Current(kA/s) | 12.5/3 16/3 | 12.5/3 16/3 | 12.5/3 16/3 |
Arc Extinguishing Medium | Vacuum | Vacuum | Vacuum |
Insulation Medium | Solid | Solid | Solid |
Operation Mechanism | Magnetic Actuator | Magnetic Actuator | Magnetic Actuator |
Bushing | Epoxy or Silicon Rubber | Epoxy or Silicon Rubber | Epoxy or Silicon Rubber |
Mechanical endurance CO | 10000 | 10000 | 10000 |
Creepage Distance(mm) | 640 | 960 | 1288 |
Pollution Level | IV (31mm/kV) | IV (31mm/kV) | IV (31mm/kV) |
Ambient air temperature range(℃) | -40..+70 | -40..+70 | -40..+70 |
Altitude(m) | 2000 | 2000 | 2000 |
Degree of Protection | IP67 | IP67 | IP67 |
Reference Standard | IEC62271-111,IEEE C37 60 | IEC62271-111,IEEE C37 60 | IEC62271-111,IEEE C37 60 |
