FL(R)N36-12D indoor high-voltage SF6 load circuit breaker is an indoor switchgear with a rated voltage of 12KV. It uses SF6 gas as arc extinguishing and insulation medium. It includes three positions: closing, opening and grounding. It has the characteristics of small size, easy installation and use, and strong environmental adaptability.
FLN36-12 AG High Voltage SF6 Load Break Switch Spacing 210mm
Description
- FL(R)N36-12D indoor high-voltage SF6 load circuit breaker is an indoor switchgear with a rated voltage of 12KV. It uses SF6 gas as arc extinguishing and insulation medium. It includes three positions: closing, opening and grounding. It has the characteristics of small size, easy installation and use, and strong environmental adaptability.
- Combining FL(R)N36-12D indoor high-voltage SF6 load circuit breaker with other electrical components can realize control and protection functions. It can be used for control and protection of electrical equipment in industrial and mining enterprises, civil power supply and secondary substations. Among them, the load switch-fuse combination electrical appliance matches the transformer protection characteristics, which is particularly suitable for ring network power supply units.
- FLN36-12D/630-20 indoor high-voltage SF6 load circuit breaker (hereinafter referred to as load switch) and FL(R)N36-12D/100-50 combination electrical appliance (hereinafter referred to as combination electrical appliance) comply with national standards GB3804 “3~63KV AC high-voltage load switch” (EQVIEC60265-1) and GBL6926 “AC high-voltage load switch-fuse combination electrical appliance” (EQVIEC420).
- Operating environment
- Altitude: The maximum altitude of the equipment installation site is 1000m;
- Ambient air temperature: upper limit +40C, lower limit -15C;
- Ambient humidity: daily average relative humidity is not more than 95%, monthly average relative humidity is not more than 90%;
Earthquake: earthquake intensity does not exceed 8 degrees; - Ambient air should not be obviously polluted by corrosive and flammable gases, water vapor, etc., and there should be no frequent severe vibrations.
| No. | Item | Unit | Data | ||
| FLN36-12D(24D) | FLRN36-12D(24D) | ||||
| 1 | Rated voltage | kV | 12(24) | 12(24) | |
| 2 | Rated frequency | Hz | 50(50) | 50(50) | |
| 3 | Rated current | A | 630(630) | 125(125) | |
| 4 | Rated short time withstand current of load break
switch/rated duration of short-circuit |
kA/s | 20/3(20/3) | – | |
| Rated short time withstand current of earthing switch/ rated duration of short-circuit | kA/s | 20/2(20/2) | – | ||
| 5 | Rated peak withstand current and Rated Short circuit Making Current | kA | 50(50) | 125(Expected)(125) | |
| 6 | Rated breaking current | Active load breaking current | A | 630(630) | – |
| Closed loop breaking current | A | 630(630) | – | ||
| 5% rated active load breaking current | A | 31.5(31.5) | – | ||
| Breaking cable charging current | A | 10(10) | – | ||
| Breaking non-load transformer capacity | kVA | 1250(2000) | 1250(2000) | ||
| Breaking transfer current | A | – | 1700(1700) | ||
| Expected short circuit breaking current | kA | – | 20(50) | ||
| 7 | Rated insulation levels | 1 min P.F. withstand voltage,phase to phase,earth/across open contacts | kV | 42/48(65/79) | 42/48(65/79) |
| Lightning impulse withstand voltage,phase to phase, earth/across open contacts | kV | 75/85(125/145) | 75/85(125/145) | ||
| 8 | Mechanical life | 5000(5000) | 5000(5000) | ||
| 9 | Rated pressure of SF6(20℃,gauge pressure) | MPa | 0.04~0.05(0.04~0.05) | 0.04~0.05(0.04~0.05) | |
