This vacuum recloser adopts pole embedded technology, encapsulated vacuum bottles for the fault interruption, epoxy resin and silicon rubber for the insulation. Magnetic actuated mechanism combined with optional spring
mechanism enable both CLOSE and TRIP operations when the battery runs out during dead line. It is rated for three-phase systems up to 38kV maximum, 800A continuous and 20kA interrupting maximum. Voltage
sensors and multiple ratio CTs are encapsulated inside each pole, providing necessary signals and reading for multiple protections and meterings, also ready for future automation realization. Complete with
SOJO SJFD2000 microprocessor recloser controller, the recloser is able to perform functions as auto reclosing and sectionalizing. The recloser also has connection interfaces compatible with controller from diverse brands.
Features of Three-phase Vacuum Recloser
Reliability
1. 10,000 times mechanical endurance
2. UV resistant solid insulation material
3. 100% factory tested for partial discharge
4. Single molded design ensure longer creepage distance Maintenance-free
1. Solid insulation material enables application under high contamination environment
2. Magnetic actuated mechanisms with few moving parts
3. Painted Stainless steel enclosure and operation shaft guarantee maximum corrosion protection
4. Flexibility and Compatibility
5. Optional spring assisted magnetic actuator enables CLOSE and TRIP manually
6. Compatible with controller or relays from other brands
7. Various selections of cable connection interfaces
Smart Grid and Automation
1. Encapsulated 3 multi-ratio current transformers
2. Encapsulated 6 voltages sensors maximum
Environmentally Friendly
1. SF6 free
2. Clean and recyclable material
Internal Structure
| No. | Item | Unit | Data | |||
| 15.5kV | 27kV | 38kV | ||||
| 1 | Rated Voltage | kV | 15.5kV | 27 | 38 | |
| 2 | Rated Frequency | Hz | 50/60 | 50/60 | 50/60 | |
| 3 | Rated Current | A | 630 1250 | 630 | 630 800 | |
| 4 | Rated Short Circuit Breaking Current | kA | 20 25 | 20 | 12.5 16 20 | |
| 5 | Breaking Times | Time | 30 | 30 | 30 | |
| 6 | Rated Peak Withstand Current | kA | 50 63 | 50 | 50 63 | |
| 7 | Rated Short Time Withstand Current / Duration | kA/s | 20/4 25/4 | 20/4 | 20/4 25/4 | |
| 8 | Rated Short-circuit Making Current (peak) | kA | 50 63 | 50 | 50 63 | |
| 9 | Mechanism Endurance | Time | 10000 | 10000 | 10000 | |
| 10 | 1 min Power Frequency Withstand Voltage | Wet | kV | 45 | 50 | 60 |
| dry | kV | 50 | 60 | 70 | ||
| 11 | Lightning Impulse Withstand Voltage | kV | 110 | 125 | 170 | |
| 12 | Secondary Circuit 1 min Power Frequency Voltage | V | 2000 | 2000 | 2000 | |
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