Supply ZN63-12/630-25 indoor high-voltage handcart vacuum circuit breaker

ZN63 (VS1) -12/630-20 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/630-25 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/630-31.5 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1250-20 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1250-31.5 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1250-40 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1600-25 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1600-31.5 High Voltage Vacuum Circuit Breaker ZN63 (VS1) -12/1600-40 High voltage vacuum circuit breaker ZN63 (VS1) -12/2000-31.5 High voltage vacuum circuit breaker ZN63 (VS1) -12/2000-40 High voltage vacuum circuit breaker ZN63 (VS1) -12/3150-31.5 High voltage vacuum circuit breaker ZN63 (VS1) -12/3150-40 High voltage vacuum circuit breaker ZN63 (VS1) -12/4000-40 Overview: ZN63--12 (VS1) type indoor AC vacuum circuit breaker, is a three-phase AC 50HZ, rated voltage of 12 kV Indoor high-voltage distribution equipment Can be used to connect lines, cut off fault currents, and provide protection functions Especially suitable for frequent operations such as switching capacitor banks, controlling electric furnace transformers and high-voltage motors, and can also be used as a liaison 2. Structural features: The main body of the circuit breaker is located inside an insulation barrel made of epoxy resin cast using APG technology. This structure can effectively prevent external impact and the influence of environmental pollution and other external factors on the vacuum arc extinguishing chamber The circuit breaker is equipped with ZMD1410 series sealed ceramic or glass vacuum arc extinguishing chamber, and its copper chromium contacts have a ring-shaped longitudinal magnetic field contact structure, strong breaking ability, low current interception level, and long electrical life The vacuum arc extinguishing chamber is placed inside the insulation plug, making the circuit breaker maintenance free, * * *, no explosion hazard, low noise, and high insulation level The operating mechanism is a spring energy storage operating mechanism, which is equipped with a closing unit inside the mechanism box. The front panel is equipped with opening and closing buttons, manual energy storage operation holes, spring energy storage status indicators, etc The mechanism and the main body are arranged as a whole, with high transmission efficiency and good operational performance. It is suitable for frequent operation and can be installed in removable or fixed switchgear 3. Working principle: The energy required for the circuit breaker to close is supplied by a spring energy storage mechanism. The energy storage mechanism can be driven by an external power source to complete the motor, or it can be stored by a manual energy storage handle After the energy storage is completed, the energy storage indicator displays "Energy already stored" At the same time, the energy storage switch cuts off the power supply of the energy storage motor, and the circuit breaker is in a state of waiting to be closed In the closing operation, whether pressing the "closing" button by hand or remotely operating the closing electromagnet, the circuit breaker can be closed After the closing action is completed, the energy storage indicator and energy storage switch are reset, and the motor power is turned on The motor is storing energy again The closing sign displays "closed" Auxiliary switch contact conversion In the opening operation, whether pressing the "opening" button by hand or remotely operating the closing electromagnet, the circuit breaker can be opened. After the opening action is completed, the opening indicator board displays "closed" Auxiliary switch contact conversion At the same time, during the opening operation, the counter automatically enters one position, and the corresponding number can be seen from the panel observation window 4. Anti misoperation interlock: After the closing operation is completed, the circuit breaker cannot be closed again before it is opened After the completion of the circuit breaker closing operation, if the closing signal is not removed in time, the internal anti bounce control circuit of the circuit breaker will cut off the closing circuit to prevent multiple reclosing The handcart circuit breaker cannot be closed before reaching the experimental or working position If a locking circuit breaker is selected, the locking electromagnet will prevent manual closing when the secondary control circuit is not connected 5. The standards that the circuit breaker complies with: The circuit breaker complies with the relevant requirements of GB1984-2003 "Indoor AC High Voltage Circuit Breaker" and IEC62271. It passed the appraisal of the former Ministry of Machinery and Ministry of Electric Power Industry in 1998 6. Characteristics of circuit breaker: This vacuum circuit breaker has stable operating performance, high breaking current, reasonable design, and convenient secondary wiring, making it very suitable for the operation of China's power grid 7. Environmental conditions for use: Altitude: 1000m and below (special instructions should be given when exceeding altitude) Environmental temperature: -15 ℃~+40 ℃ Relative humidity: Daily average ≤ 95% Monthly average ≤ 95% In situations without pollution and severe vibrations caused by dust, smoke, corrosive and flammable gases, steam, or smoke, the amplitude of electromagnetic interference induced in auxiliary circuits should be ≤ 1.6. 8. Technical parameters: Parameter name Unit parameter value Rated voltage kV 12 Rated lightning impulse voltage kV 75 (phase to phase, relative to ground)/85 (break) Rated short-time power frequency withstand voltage (1 minute) kV 42 (phase to phase, relative to ground)/48 (break) Rated frequency HZ 50 Rated short-circuit breaking current kA 25 31.5 40 Rated current A 630 1600 2000 4000 Rated short-time withstand current kA 25 31.5 40 Rated peak withstand current kA 63 80 100 Rated short-circuit closing current (peak) kA 63 80 100 Secondary circuit power frequency withstand voltage (1 minute) V 2000 Operation sequence: -0.3S-on-off 180 S-on-off 180 S-on-off 180 S-on-off 180 rated single back-to-back capacitor group Breaking current A 630/400 (40 kA equals 800/400) Rated capacitor bank breaking inrush current kA 12.5 (frequency not exceeding 10000HZ) Mechanical lifespan 20000 rated short-circuit breaking current times 50 rated operation opening and closing voltage V AC: 110/220 DC: 110/220 energy storage motor voltage V AC: 110/220 DC: 110/220 three-phase opening and closing asynchrony ms ≤ 2 main circuit resistance μ Ω≤ 60 (630A) ≤ 50 (1250A) ≤ 45 (1600 A) ≤ 35 (2000A) ≤ 25 (above 2500)

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