FLN36-12 Indoor AC high voltage sulfur hexafluoride load switch
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Keyword： FLN36-12 Indoor AC high voltage sulfur hexafluoride load switch
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- Commodity name: FLN36-12 Indoor AC high voltage sulfur hexafluoride load switch
Product Overview
FLN36-12D, FLRN36-12D type indoor AC high voltage sulfur hexafluoride load switch, load switch-fuse combination electrical appliances and cable head load switch are designed and developed by our company. FLN36-12D, FLRN36-12D type indoor AC and high voltage sulfur hexafluoride load switch, load switch-fuse combination electric appliance and cable head load switch are designed and developed by our company by absorbing foreign advanced technology and combining with the operation requirements of our country. The products have undergone comprehensive type tests and their performance meets the requirements of GB3804 “3～63kV AC High Voltage Load Switches”, GB16926 “High Voltage Load Switch-Fuse Combination Appliances”, IEC60265 and IEC60420 standards. The product has a “close-split-earth” three-station arc extinguishing chamber, reliable interlocking, high dielectric strength at the break, large creepage distance design, and the outlet end is protected by an even-pressure protective cover. Cable head type load switch with touchable cable front connector at the outlet end, inlet and outlet lines for installation of high-voltage cables, for use in cable branching (connection) boxes. The special dynamic sealing and fixed sealing design of the switch ensures reliable sealing, and a pressure gauge is installed at an obvious position for monitoring during operation to ensure operational safety.
This product is suitable for three-phase AC 10kV, 50Hz power system, as industrial and mining enterprises, high-rise buildings, residential neighborhoods, pre-installed substations, used to open and close the load current, fault current, control and protection of lines and distribution transformers.
Model Meaning
Normal conditions of useAmbient air temperature: -15°℃″+40°℃;
Altitude: not exceeding 1000m;
Humidity conditions: the average value of daily relative humidity does not exceed 95%, the average value of monthly relative humidity does not exceed 90%, the average value of daily water vapor pressure does not exceed 2.2kPa, the average value of monthly water vapor pressure does not exceed 1.8kPa;
The ambient air is not visibly polluted by dust, smoke, corrosive and flammable gases, vapors or salt spray;
Vibration or ground motion from outside the switchgear and control equipment is negligible;
The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV.
Special conditions of use
According to the national standard GB/T11022-1999, “Shared Technical Requirements for the Standard of High Voltage Switchgear and Control Equipment”, the circuit breaker should be under normal conditions of use and Operation. If the working conditions used by the user are different from the normal use conditions, such as: the installation location is at an altitude of more than 1000m above sea level, the ambient air temperature exceeds the limit value specified in the normal use conditions, or high humidity is prone to condensation, the user should consult with the manufacturer and obtain a consensus.
Main technical parameters
Technical parameters (see Table 1) Table 1 serial number name unit data FLN36-12D FLRN36-12D 1 Rated voltage KV 12 12 2 Rated frequency Hz 50 50 3 Rated current A 630 125 4 Load switches are rated for short-term withstand current/rated short-circuit duration that 20/3 -- Ground switches are rated for short-term withstand current/rated short-circuit duration kA/S 20/2 One 5 Rated peak withstand current and rated short-circuit closing current k A 50 125 (expected) 6 Rated
breaking
currentActive load breaks the current A 630 One Closed-loop breaking current A 630 -- 5% rated active load breaking current A 31.5 One Break the cable charging current A 10 One Split the capacity of the no-load transformer kVA 1250 1250 Interrupt the transfer current A -- 1700 Expected short circuit breaking current k A --- 50 7 rated
insulation level1 minute power frequency withstand voltage interphase, ground/disconnection k V 42/48 42/48 Lightning shock withstand voltage interphase, ground/disconnection k V 75/85 75/85 8 Mechanical life 500 500 9 SF6 Rated Air Pressure (Gauge Pressure at 20°C) MPa 0.04~0.05 0.04~0.05 Technical parameters of fuses (see Table 2) Table 2 Model Rated Voltage KV) Fuse Current Rating (A) Rated current of fuse (A) Rated Breaking Current (kA) XRNT 12 40 6.3,10,16,20,25,31.5,40 50 XRNT 12 100 50,63,71,80,100 50 XRNT 12 125 125 50
Environmentally friendly gas-insulated metal enclosed switchgear is the most commonly used three-phase intelligent gas-insulated AC cabinet and is widely used in various switchgear sets, with population concentration in the country, the power market must be supported, environmentally friendly gas-insulated switchgear will also grow with market development; market potential is yet to be tapped. At the same time, as the product integrates data collection and management, data processing and storage, online monitoring of switchgear, advanced analysis, and other multifunctions in one, network intelligent monitoring and management of the distribution network, so that the distribution network operates in a safe, reliable, high-quality, and efficient best state, to achieve remote monitoring, management, and control of the power system distribution network, to achieve network optimization, safe electricity use, power management, energy saving, and consumption reduction; at the same time, the system can be widely used in intelligent power distribution fields such as transportation, factories, hospitals, schools, buildings, residential areas, and commercial office buildings.
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