FLN36-12D, FLRN36-12D sulfur hexafluoride load switch, load switch-fuse combination and loadable cable head load switch are designed and developed by our company by absorbing foreign advanced technology and combining with the operating requirements of our country.
After comprehensive type test, the product conforms to GB3804 "3~ 63kV AC high voltage load switch", GB16926 "high voltage load switch-fuse combination", IEC60265, IEC60420 standard requirements.
The product has three positions of arc extinguishing chamber, which is reliable in interlocking, high insulation strength at
breakage, large climbing distance design, and the outlet end is protected by voltage sharing protective cover.
Install cable head type load switch, the outlet end of which is equipped with touch-type cable front connector, the inlet and
outlet line is installed with high-voltage cable, and it is equipped with cable branch (connection) box.
The switch has special dynamic seal and fixed seal design, reliable seal, and is equipped with pressure gauge in obvious position. It is a new generation of high voltage switchgear equipped with urban power grid for operation monitoring to ensure operation safety.
This product is suitable for three-phase AC 10KV, 50HZ power system, as industrial and mining enterprises, high-rise buildings, residential areas, pre-installed substation places, used to open and close the load current, fault current, control and protection lines and distribution transformers.
| The name of the | units | data | ||
| FLN36-12D | FLRN36-12D | |||
| The rated voltage | 12 | 12 | ||
| Rated frequency | 50 | 50 | ||
| Rated current | A | 630 | 125 | |
| Load switch rated short - term tolerance current/rated short - circuit duration | kA/S | 20/3 | - | |
| Ground switch rated short-time tolerance current/rated short-circuit duration | kA/S | 20/2 | - | |
| Rated peak tolerance current and rated short-circuit closing current | kA | 50 | 125(expect) | |
| rated breaking current | Active load breaking current | A | 630 | - |
| Closed-loop breaking current | A | 630 | - | |
| 5% rated active load breaking current | A | 31.5 | - | |
| Turn off the cable charging current | A | 10 | - | |
| Turn off the no-load transformer capacity | KVA | 1250 | 1250 | |
| Turn off the transfer current | A | - | 1700 | |
| Expected short circuit breaking current | kA | - | 50 | |
| Rated insulation level | 1minl frequency withstand voltage phase, to ground/off | KV | 42/48 | 42/48 |
| Lightning shock withstand voltage phase, to ground/off | KV | 75/85 | 75/85 | |
| Mechanical life | 500 | 500 | ||
| SF6 rated air pressure (gauge pressure at 20°C)" | MPa | 0.04-0.05 | 0.04-0.05 | |
ambient temperature: -15ºC~+40ºC;
Altitude: no more than 1000m;
Relative humidity: the average value of daily relative humidity shall not exceed 95%, the average value of monthly relative
humidity shall not exceed 90%, the average value of daily water vapor pressure shall not exceed 2.2kPa, and the average value of monthly water vapor pressure shall not exceed More than 1.8 kPa;
Ambient air: not visibly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray; The vibration or ground movement from the outside of the switchgear and control equipment can be ignored;
The amplitude of electromagnetic interference induced in the secondary system shall not exceed 1.6kV.
Special Service Conditions: According to the national standard GBT11022-999 "Common Technical Requirements of High Voltage Switchgear and Control Equipment Standard", the circuit breaker should be operated under normal service conditions. If the working conditions used by the user are different from the normal operating conditions, such as: the installation site is over 1000m above sea level, the ambient air temperature exceeds the limit specified in the normal operating conditions, or the high humidity where condensation is easy to occur, the user shall consult with the manufacturer and reach an agreement.
