The main purpose ZW32-12 series outdoor high voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") for AC 50Hz, rated voltage 12kV three-phase power system, as the sub-load current, overload current and short circuit current. The circuit breaker can be configured to coincide with the controller to identify the current characteristics and to achieve multiple automatic reclosing or permanent fault isolation; own PT as a power supply, a voltage and current signal output and control of the intelligent circuit breaker; by the electronic PT power supply And can complete the over-current delay, surge delay, short-circuit quick-break three-band composite protection. Features Can be equipped with spring operating mechanism, with breaking off load current, overload current and short circuit current and other basic functions, ZW32-12 series is the basic type. The circuit breaker is used in conjunction with a disconnector to form a "combined circuit breaker" (hereinafter referred to as "combined circuit breaker") with a clear fracture. In the isolation switch for users to choose to use silicone rubber insulation jacket, the jacket with rain and snow sand, anti-pollution characteristics, can effectively avoid the isolation switch freezing and oxidation. Circuit breakers can be equipped with arrester, arrester can be installed according to user requirements in the inlet and outlet arbitrary side; circuit breaker can be equipped with inrush controller, so that it has the function of hiding and overcurrent breaking; circuit breaker can be installed 2 to 3 Measuring or measuring the transformer. The reclosable controller can be used to form a recloser type intelligent circuit breaker. Basic type and coincidence controller for easy access to power occasions, PT type and coincidence controller with no power for the occasion, intelligent circuit breakers for radiation-type power supply and ring network power supply system to help the system to eliminate instantaneous failure, automatic Restore power supply, but also isolated permanent failure, to achieve distribution network automation. So that the circuit breaker with 1 to 3 reclosing function, and recloser parameters can be set. The intelligent circuit breaker has the functions of closing the inrush current control, overcurrent protection and short circuit breaking, and the parameters can be set continuously. The intelligent circuit breaker has the function of small current grounding protection and the parameters can be set continuously. The intelligent circuit breaker can be realized Wired remote control, but also under the rod wireless remote control. Can be equipped with voltage transformer, the voltage transformer from the line high voltage side of the power, according to the need to provide itself or other control equipment 220V, 110V, 100V voltage; the circuit breaker (small hydropower type) can be used for line voltage monitoring, When the over voltage or under voltage, the controller automatically disconnect the circuit breaker, can be widely used in small hydropower branch and the main power grid and branch, to achieve network monitoring and fault isolation; the circuit breaker (metering) Can output 0.2 precision voltage, current signal, is the rural power grid substation, station outside the point switch and simple measurement switch ideal. Can be equipped with electronic PT, from the CT power to charge the battery, in the state of loss of pressure can be a number of energy storage and sub-closing operation, and can provide the external device operating voltage; with closing surge control, overcurrent protection and Short-circuit quick-break three-section composite protection function, the protection parameters can be set by the user continuous; both can achieve remote control of the cable, but also under the rod wireless remote control. Use environmental conditions A. Ambient air temperature: upper limit + 45 ℃, lower limit -30 ℃. B. Elevation of not more than 2000M; (if the increase in altitude can be a corresponding increase in insulation strength or installation of equipment) C. Wind pressure does not exceed 700Pa (equivalent to wind speed 34m / s). D. No frequent severe vibration, the earthquake level does not exceed 8. Pollution level: Class III. Product structure and working principle 1 circuit breaker overall use of small design, the use of fully enclosed structure. The spring operating mechanism is sealed inside the box. 2 circuit breaker body is mainly composed of conductor circuit, transmission system, insulation system and other components. (see picture 1) 2.1 conductive circuit mainly by the inlet and outlet conductive rod, conductive bracket, vacuum interrupter and other components, vacuum interrupter is the main components of the circuit breaker, the use of ceramic shell, cup longitudinal magnetic field contact structure, copper and chromium contact material, with Good breaking and closing short-circuit current capability, long electrical life. To avoid the oil, inflated a series of problems. 2.2 transmission system mainly by the three-phase spindle, insulation rod, arm, contact spring and sub-gate spring and other components. 2.3 circuit breaker can be equipped with two-phase current transformer, according to user needs can be installed 50 / 5,100 / 5,150 / 5,200 / 5,400 / 5,630 / 5 and other specifications. 3 circuit breaker operating mechanism by the closing spring, energy storage system, over-current release, sub-closing system and other components, can be divided into two manual electric operation. 3.1 manual operation with manual energy storage, manual points, closing and overcurrent protection, such as the user needs to install the surge current delay protection, that is, with over-current delay protection. 3.2 electric operating mechanism shall be powered by an independent power supply, in addition to electric energy storage, electric points, closing and over-current protection, but also has a manual energy storage, manual closing and over-current protection. If the user needs to install the surge current delay protection device, that is, with over-current delay protection. 4 circuit breaker can also be equipped with intelligent switching controller, with three-stage current protection, zero sequence protection reclosing. Quick protection and other protection functions. It supports a variety of communication protocols, allowing the use of a variety of communication methods constitute a communication network, you can switch the local manual or remote operation, but also through the communication network to achieve remote control. Such as with the corresponding overlap or sub-control device, can be used as a recloser or splitter. 5 circuit breaker installation method using column mounted on the seat. working principle 1 operating mechanism working principle 2 Energy storage process Pull the body to manually store the pull ring, or to the mechanism of electric energy storage signal, the motor drive energy storage arm to the storage spring energy storage, through the energy storage link to maintain this energy. 3 closing process When closing, pull the body manually closing the pull ring or to the mechanism of electric closing signal, closing the spring energy release, the body output shaft rotation, through the arm, the bar to drive the arc chamber moving contact upward movement, and the static contact Contact, and provide contact pressure, while the sub-gate spring energy storage, through the closure of the body to keep the link normally to keep the circuit breaker closed state. 4 sub-gate process When the gate is opened, the pulling mechanism is manually opened or the mechanism is electrically opened. The closing of the mechanism is carried out. If the contact pressure spring and the sub-gate spring are used, the mechanism output shaft is rotated in the reverse direction. Bar, arm driven arc chamber contact downward movement, static and dynamic contact separation, circuit breaker sub-gate. The opening condition is maintained by the switch opening spring. 5 overcurrent protection process When the circuit current flowing through the main circuit of the circuit breaker exceeds the transformer rated value, 5A current is output through the secondary side of the transformer, the overcurrent release device in the drive mechanism and the circuit breaker are opened. 6 delay protector Can be closed in the circuit breaker to avoid inrush current on the circuit breaker malfunction, to ensure that the circuit breaker when the surge in the case of inrush current delay 0 ~ 1.8s (adjustable) does not trip, and in normal work State, accurately determine the breaking and closing of the working state and whether there is a large current fault, but also to ensure reliable operation of the trip part. Circuit breaker in the event of short circuit protection trip, the delay protector self-recovery. Inrush current delay protection wiring diagram see annex drawings. Installation and maintenance 1 pre-installation check To ensure safe and reliable operation of the circuit breaker, a thorough inspection must be carried out before installation. 1.1 After the removal of the package, first check the appearance of the circuit breaker, such as conductive rod insulation layer is intact, with or without cracks and other defects, the shell surface, whether due to transport causes damage, nameplate data and order requirements are consistent. 1.2 Check whether the supplied accessories, spare parts and files are complete. 1.3 manual test operation 5 to 10 times, check the operation of the circuit breaker operating performance, should be able to point, and flexible, "points", "together" and "energy storage" instructions correct. 1.4 on the circuit breaker main circuit with the pole between the inter-phase and the relative part of the 42KV / 1min power frequency withstand voltage test. 2 installation 2.1 In accordance with the installation size of the circuit breaker and power engineering requirements of the production of fixed bracket, and the circuit breaker firmly fixed on the bracket. The installation dimensions and dimensions of the circuit breaker are shown in Fig. 4 and Fig. 2.2 Connecting the wire terminals and the bolts of the terminals of the circuit breaker should be tightened to ensure good contact. 2.3 The control circuit is connected correctly by line diagram. 3 use 3.1 circuit breaker with manual operation mechanism, pull the energy storage handle, repeated operation 7 to 8 times, energy storage is completed, pull the closing handle that is to close the opening, pull the sub-gate, that is, to achieve sub-gate. 3.2 circuit breaker with electric operating mechanism, the motor power supply, that is, by the motor energy storage, energy storage can be completed after the closing button or pull the closing pull ring, that is, closing; opening, the opening Button or pull the sub-gate that is to achieve sub-gate. 3.3 Combined circuit breakers shall operate as follows: A. When opening, first break the circuit breaker, and then break off the touch knife, then the circuit breaker in the interlock device restrictions, can not be closed; B. When closing, you must first close the touch knife closing in place, then interlock device release, and then close the circuit breaker. Packaging, transportation and storage 1 package The packaging of this product is in the form of wooden box, and the following random documents and accessories should be included in the box. A certificate of product qualification; B. Installation instructions 1; C. Inspection report 1 copy D. Product wiring diagram and the second schematic diagram 1 copies E. Packing list 1 copy F. Spare parts (by order contract) 1.2 The box surface should be marked with "care", "moisture", "up" and "hoisting position". 2 transport Products in the transport and handling, shall not flip, inverted, not strong vibration and collision. 3 storage The product shall be stored in an indoor or shaded warehouse and shall not be subject to erosion of water vapor and harmful gases and shall be checked regularly. The product storage period shall not be less than 15 years. 4 circuit breakers should be in the sub-gate during packaging, transport and storage. Ordering instructions 1 should specify the product model, name, rated voltage, rated current and short circuit breaking current, should indicate the current transformer current ratio and the use of occasions, and indicate the operating mechanism and type (electric or manual) and need Current delay protection or not. 2 orders should indicate the number of orders, spare parts should also be explained.