Outdoor Pole-Mounted Fast Recloser
Product Overview
Automatic reclosers are intelligent switching devices used in distribution network automation. They are control switches that detect fault currents, interrupt the fault current within a specified time interval, and then reclose a predetermined number of times. When a short circuit occurs on the line, the recloser performs opening and closing operations in a prescribed sequence and at set time intervals. In the event of a permanent fault, after completing the predefined sequence of operations, if reclosing fails, the device locks in the open position to isolate the faulted section; once the fault is cleared, manual reset is required to unlock it. For transient faults, during the opening–closing cycle, if reclosing is unsuccessful, subsequent opening–closing operations are halted, and after a specified delay the device returns to its initial settings, ready to respond to the next fault. The recloser can execute multiple opening–closing cycles according to a preprogrammed sequence of operations.
Terms of Use
● Altitude not exceeding 2,000 meters; pollution severity level: Level IV.
● Ambient air temperature: -45°C to +40°C; daily temperature range: 25°C.
● Wind speed shall not exceed 35 m/s; seismic intensity shall not exceed Grade 8.
● Areas free from flammable, explosive, or chemically corrosive hazards.
Implementation Standard
GB 11022-1999 “Common Technical Requirements for Standards of High-Voltage Switchgear and Control Equipment”
GB 311.1-1997 “Insulation Coordination for High-Voltage Transmission and Transformation Equipment”
GB 3309-1989 “Mechanical Tests of High-Voltage Switchgear at Ambient Temperature”
GB 25284-2010 “12 kV–40.5 kV High-Voltage AC Automatic Recloser”
GB 1208-2006 “Current Transformers”
GB/T 1984-2024 “High-Voltage AC Circuit Breakers”
GB/T 11022 “Common Technical Requirements for Standards of High-Voltage Switchgear and Control Equipment”
GB/T 7261-2000 “Basic Test Methods for Relays and Devices”
GB/T 20840.7-8 “Electronic Voltage/Current Transformers”
GB/T 4208 “Ingress Protection Rating (IP Code)”
DL/T 593 “Common Technical Requirements for High-Voltage Switchgear”
DL/T 721 “Remote Terminal Units for Distribution Automation”
DL/T 844-2003 “General Technical Specifications for 12 kV Maintenance-Reduced Outdoor Distribution Switchgear”
DL403-2000 “Technical Specifications for Ordering 12–40.5 kV High-Voltage Vacuum Circuit Breakers”
IEC 62271-111:2005
Technical Specifications
Project |
Unit |
Numerical value |
|||
Rated voltage |
kilovolt |
15.5 |
27 |
38 |
40.5 |
Rated frequency |
Hertz |
50/60 |
50/60 |
50/60 |
50/60 |
Rated current |
A |
630/800 |
630/800 |
630/800 |
630/1250 |
Rated short-circuit breaking current |
kA |
12.5/16 |
12.5/16 |
12.5/16 |
12.5/16 |
Rated short-circuit making current |
kA |
32.5/41.6 |
32.5/41.6 |
32.5/41.6 |
32.5/41.6 |
Rated short-circuit breaking current |
kA |
12.5/16 |
12.5/16 |
12.5/16 |
12.5/16 |
Rated short-circuit duration |
s |
3 |
3 |
3 |
3 |
Rated Operating Sequence |
|
Open – 0.5 s – Close – 2 s – Close – 5 s – Close – Interlock |
|||
Mechanical life |
times |
10000 |
|||
Rated short-circuit breaking current breaking operations |
times |
30 |
30 |
30 |
30 |
Power-frequency withstand voltage (1 minute): phase-to-phase, phase-to-ground / break contacts |
kilovolt |
50 |
70/85 |
90/115 |
95/118 |
Rated lightning impulse withstand voltage |
kilovolt |
110 |
135/155 |
176/200 |
185/215 |
Secondary withstand voltage (1 minute) |
kilovolt |
2 |
2 | 2 | 2 |
Protection Level |
IP65 |
||||
Main Mechanical Parameters
Project |
Unit |
Numerical value |
|||
Rated voltage |
kv |
15.5 |
27 |
38 |
40.5 |
Contact opening distance |
mm |
9±1 |
12±1 |
15±1 |
16±1 |
Average tripping speed |
m/s |
1.0±0.2 |
1.2±0.3 |
1.4±0.4 |
1.4±0.4 |
Average closing speed |
m/s |
0.6±0.2 |
0.8±0.3 |
0.9±0.4 |
0.9±0.4 |
Contact closing bounce time |
m/s |
≤ 3 |
≤ 3 |
≤ 3 |
≤ 4 |
Contact closing and opening are out of phase. |
m/s |
≤ 2 |
≤ 2 |
≤ 2 |
≤ 2 |
Overtravel |
mm |
3±0.5 |
3±0.5 |
3±0.5 |
3±0.5 |
Trip time |
m/s |
≤ 45 |
≤ 45 |
≤ 45 |
≤ 45 |
Closing time |
m/s |
≤ 60 |
≤ 60 |
≤ 100 |
≤ 100 |
External mounting dimensions
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