Description
Ab-3s-12 series circuit breaker is a new generation of intelligent vacuum circuit breaker on column developed by our company by integrating advanced technology at home and abroad, absorbing the advantages of many families, adopting new design concept, using high-tech means. The product can be used as the switch on the 10kV side and 10kV outgoing line of the main transformer of the 35kV substation, or as the column switch of the distribution network. Combined with various control units produced by the company, it can easily realize control, protection, measurement and communication. It is the preferred equipment to realize the automation and miniaturization of the distribution network.
Information about the new red and brown ZW7-40.5 outdoor vacuum circuit breaker and LZZBJ4-35 pillar current transformer is as follows:
ZW7-40.5 outdoor high voltage vacuum circuit breaker
Product Overview:
ZW7-40.5 series outdoor high voltage AC vacuum circuit breaker is a three-phase AC 50Hz outdoor high voltage switchgear, suitable for control and protection of 35kV power transmission and distribution system
ZW7-40.5 series outdoor high voltage AC vacuum circuit breaker is three-phase AC 50Hz outdoor high voltage switchgear, suitable for control and protection of 35kV power transmission and distribution system.
Technical Parameters:
Rated voltage: 40.5kV
Rated insulation level: 1min frequency withstand voltage dry 95kV, wet 80kV; rated lightning impulse withstand voltage (peak) 185kV
Rated current: 1250A, 1600A, 2000A
Rated short-circuit breaking current: 20kA, 25kA, 31.5kA
Mechanical life: 10000 times
Adopting vacuum arc extinguishing, strong breaking capacity and long electric life.
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Product features:
Reasonable structure, easy maintenance, can be equipped with optional power transformer, to realize multi-variable, multi-winding, to meet the needs of measurement, measurement, protection of multiple aspects
The product adopts new insulating material to achieve arc extinguishing.
Adopting new insulating materials to achieve no condensation on the outside of the arc extinguishing chamber and the inner wall of the porcelain sleeve.
LZZBJ4-35
LZZBJ4-35 Pillar Current Transformer
Product Overview:
LZZBJ4-35 current transformer for epoxy resin casting fully closed structure, suitable for rated frequency 50Hz or 60Hz, rated voltage 35kV power system, for power measurement, current measurement and relay protection.
It is suitable for power measurement, current measurement and relay protection in power system with rated frequency 50Hz or 60Hz and rated voltage 35kV.
Technical parameters:
Rated insulation level: 40.5/95/185 kV;
Rated secondary current: 5A,1A;
Partial discharge level in accordance with GB1208 "current transformer" standard;
Obscurity level: Grade II;
Non-standard products can be customized according to the user
The product can be customized according to the user's non-standard products.
Product features:
Totally enclosed pillar structure, is ZW7-40.5 switch special transformer, with small size, light weight, high insulation strength, moisture resistance, maintenance-free and so on.
Features.
The above information provides the basic characteristics, technical parameters and product features of ZW7-40.5 outdoor high voltage vacuum circuit breaker and LZZBJ4-35 pillar type current transformer. We hope this information can help you better understand these two products.
Conditions of Use
a. Working environment temperature: no more than 40 ° C; The daily average temperature shall not exceed 35 ° C; The minimum ambient air temperature is - 25 ° C;
b. Relative air humidity: the daily average value shall not be greater than 95%, and the monthly average value shall not be greater than 90%; The daily average value of water vapor pressure shall not be greater than 2.2kpa; The monthly average value shall not be greater than 1.8kpa;
c. Altitude: no more than 2000m;
d. There is no obvious pollution around by dust, smoke, corrosive and / or combustible gas, vapor or smoke;
e. Vibration or ground motion from the outside of switching equipment and control equipment can be ignored;
f. The amplitude of induced electromagnetic interference in the secondary system shall not exceed 1.6kv
The main function
a. Protection: whether there is a time limit current quick-break, timing overcurrent, inverse time limit overcurrent, directional overcurrent, overvoltage, undervoltage protection;
b. Control: It can be operated locally and remotely, or it can be operated in accordance with a pre-set plan
c. Automation: It can automatically realize line fault location, fault isolation, power supply restoration, parameter analysis, etc.
d. It can automatically realize low-frequency load shedding, automatic capacitor switching, etc. according to requirements, and report fault information in time through GPRS or dedicated communication network
e. Communication: support TCP/IP protocol, support GPRS, provide CAN, RS232/485 communication ports, and support multiple communication protocols (DNP3.0JEC101, etc.)
f. It can record and store parameters such as operation, operation and failure, and the protection fixed value parameter setting can be programmed on-site and remotely;
g. The mechanical parameters of the device and the operation status of the arc extinguishing chamber can be monitored online;
h. Synchronous closing of the circuit breaker can be realized, effectively suppressing operating overvoltage and inrush current, especially suitable for the operation of capacitors
Description
The ZW7 40.5 household external high voltage vacuum circuit breaker is used in a three-phase power system with an AC 50Hz and a voltage of 40.5kV. It is used for breaking and closing load currents, overload currents and short-circuit currents.
The main function
a. Using vacuum arc extinguishing, strong breaking capacity, long electrical life, and mechanical life of 10,000 times;
b. The structure is simple, maintenance-free, and non-overhaul period is long;
c. Good insulation performance and strong anti-pollution ability;
d. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazards;
e. Built-in current transformer, accuracy of 0.2 level, can realize three mutual protection;
f. Condensation controller is included, which can keep the circuit breaker running reliably at a certain temperature and humidity.
Use environmental conditions
a. Ambient air temperature: upper limit ten 40ºC, lower limit -30ºC;
b. Altitude: at 2000m (if the altitude needs to be increased, the rated insulation level shall be increased accordingly)
c. Wind pressure: no more than 700Pa (equivalent to wind speed 34m/s)
d. Amplitude: earthquake intensity 8 degrees;
e Refining pollution level: Level III;
f. The maximum temperature difference: no more than 25T
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Description
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