2.the model and name meaning

3.Standards

High Voltage AC Circuit Breaker GB3804-2003
Mechanical testing of high - voltage switchgear at room temperature GB3309-1989
High - voltage electrical equipment - Insulation contamination grade GB5582-1993
GB / T11022-1999 Common technical requirements for high voltage switchgear and control equipment standards
Technical requirements for ordering of high - voltage AC circuit breakers for DL / T402-2007
Technical guide for common order for high - voltage switchgear
GB3855-2008 10kV indoor high voltage vacuum circuit breaker general technical conditions

4.Use of environmental conditions

4.1 ambient air temperature: -45 ℃ ~ +40 ℃; day temperature difference: the daily variation is not greater than 25 ℃;
4.2 altitude of not more than 1000 meters, 2000 meters;
4.3 wind speed is not greater than 35m / s (equivalent to 700Pa on the cylindrical surface);
4.4 icing thickness of not more than 10mm;
4.5 sunshine intensity is not greater than 1000W / m2;
4.6 pollution level does not exceed GB5582 Ⅳ level;
4.7 earthquake crack does not exceed 8;
4.8 Locations subject to non-flammable, explosive hazards, chemical corrosion and severe vibration;
4.9 If the conditions of use of the product exceed the above requirements, the user and the manufacturer to determine the consultation.

5.Technical parameters and mechanical characteristics

5.1 Technical parameters See Table 1:
5.2 Mechanical characteristics of the parameters in Table 2.
5.2 Mechanical characteristics of the parameters in Table 2.
5.3 5.3 ZW32-12 / 630-20 vacuum circuit breaker with isolation switch rated parameters in Table 3.
5.4 Permanent magnetic mechanism of the main technical parameters in Table 4, the wiring principle shown in Figure 1.

6. structural characteristics

Circuit breaker by the circuit breaker body and the controller composed of two parts, you can also equipped with disconnector. The structure of the circuit breaker body is three-phase pillar of the box body, mainly composed of six parts: conductive arc extinguishing system, insulation system, current transformer, transmission system, permanent magnet mechanism and shell.
The shape and installation dimensions of the circuit breaker are shown in Fig.
External PT shape and installation dimensions shown in Figure III.
Permanent magnet controller shape and installation dimensions shown in Figure IV.


6.1 The circuit breaker with vacuum interrupter is stable and reliable. It has the characteristics of no combustion and explosion, safe, maintenance-free, small size, light weight and long service life.
6.2 circuit breaker with a fully enclosed structure, good sealing performance, help to improve the moisture, anti-condensation performance, adapted to use in high temperature and humidity areas.
6.3 current transformers using external current transformer, can be installed 2 to 3 groups, each 1 to 2, for protection and measurement. Current ratio 150/5 ~ 1250/5, the measurement accuracy: 0.5, capacity: 10VA; protection accuracy: 10P10, capacity: 15VA.
6.4 The actuator adopts the new CDY permanent magnet type operating mechanism, which is installed inside the switch box, which can effectively avoid the corrosion of the mechanism caused by the long-term outdoor environment. Operating mechanism novel, simple, reliable action, small size, mechanical life of up to 10,000 times more.
CDY-type permanent magnet to keep the DC electromagnetic actuator is a direct push, magnetic retention (lock) type mechanism. The upper part of the shaft is composed of shaft output system, handle and output shaft. The lower part of the permanent magnet drive system, by the permanent magnet, outer yoke, static core, moving core, split gate and manual tight
The characteristics of the magnetic circuit are synchronous eutopic dual - shot, monostable, permanent magnet, and electromagnetic composite structure. The mechanism can be electrically divided, closed and manually opened.
6.5 controller using the newly developed XY-V inrush current controller, the service life of up to 20 years. (See the controller instruction manual)
6.5.1 Eliminate the malfunction caused by the inrush current during closing.
6.5.2 Eliminate malfunctions caused by inrush current during operation.
6.5.3 with over-current and quick-break protection.
6.5.4 with remote control function.
6.5.5 with remote control function.
6.5.6 has a single coil permanent magnet circuit breaker control function, can be directly on the permanent magnet circuit breaker sub-closing operation. 6.5.7 After the controller capacitor is charged, the "O-0.3s-CO" operation can be performed once the power supply disappears.
6.5.8 GSM, GPRS communication and background monitoring, control functions. (Optional)
6.6 auxiliary switch has six pairs of normally open, normally closed auxiliary contacts.
6.7 can be installed outdoor isolation switch and circuit breaker to form an integrated circuit breaker and disconnector has a reliable mechanical interlock device.

7.Working principle

7.1 Charging: After switching off (opening), the closing (opening) capacitor has no power, the controller will charge the capacitor, the time of full charge is less than the time specified in Table 1, the charging process can not be repeated.
7.2 closing: the circuit breaker in the sub-gate state, the operation of the controller closing button or remote closing button, the controller connected to the closing circuit, closing capacitor output closing current to the permanent magnet mechanism of the sub-gate coil, Gate coil electromagnetic energy into the core of the kinetic energy to promote the spindle movement, through the four-link mechanism to drive the insulation rod and vacuum interrupter moving end to complete the closing operation. Closing the position, relying on the permanent magnet mechanism of the moving core and the static core of the magnetic force to offset the over-spring and sub-gate spring force to keep the circuit breaker in the closed state.
7.3 reclosing operation: circuit breaker in the closed state, when the closing capacitor is fully charged, you can achieve "points -0.3s - points" a reclosing operation.
7.4 opening operation: the circuit breaker in the closed state, pull the manual opening handle or operating controller opening button or remote control sub-button, the controller connected to the sub-gate circuit, sub-gate capacitor output bypass current to the permanent magnet mechanism The main shaft is driven by the overtravel spring and the sub-gate spring force, and the insulation rod and the vacuum interrupter are driven by the four-bar linkage mechanism. , Complete the opening operation.
7.5 over-current trip process: When the controller detects the current transformer through the secondary current reaches 5 ± 0.5A, and reaches the set delay time, the output opening instructions to join, sub-gate, complete gate action.

8.installation, use and maintenance

8.1 out of the box should check the circuit breaker insulation straight without rupture, product nameplate, certificate is consistent with the order, packing list is consistent with the physical.
8.2 Before the circuit breaker is put into operation, it should carefully check the rated voltage of each operating element, the rated current and the actual situation is consistent. And with the institutions have the co-opening way to try to check the indicators are correct.
8.3 circuit breaker can be single-pole installation, but also double-bar installation, installation diagram shown in Figure 5, Figure 6, Figure 7, Figure 8.
8.4 circuit breaker because of its special design structure to ensure that users in the use of long-term maintenance-free, only about every three years to conduct a frequency withstand voltage test.
8.5 Users may not use the electrical components that are inconsistent with the original model specifications.
8.6 Operators should initially understand the performance and installation of the organization to adjust, maintain knowledge, the operation of the problem should be recorded, if necessary, notify the manufacturer.

9.Transport, acceptance and storage

9.1 Transport
The entire switch must be packed into a closed box to be fixed, the transport process shall not be reversed, tilt, need to take shock measures.

9.2 Acceptance
After the user receives the circuit breaker, the following work should be carried out

9.2.1 Check if the package is damaged.
9.2.2 Checking the packing list is complete, the accessories and spare parts are complete.
9.2.3 Check the technical parameters on the nameplate of the circuit breaker and whether the product certificate meets the order requirements.
9.3 Storage
The circuit breaker should be stored in a dry, ventilated, moisture and anti-harmful gas invasion of the indoor, long-term storage should be regularly checked whether the environment meets the requirements. Boxing, unpacking and storage should be in the dry room, the product and the parts to be checked whether the integrity and consistency.

10.Ordering instructions

10.1 Welcome to order ZW32-12 / 630-20 vacuum circuit breaker, the order should specify the product model (such as the rated current of the circuit breaker, rated short-circuit breaking current, whether with the isolation switch, whether with the current transformer and its number, Power supply, etc.), name, quantity and required current transformer ratio, accuracy, capacity.
10.2 The user shall submit the installation method and select the appropriate fastening accessory.
10.3 The user can select the corresponding function according to the requirements, such as: the controller with GPRS function or other user specified function.

11.Factory documents

11.1 ZW32-12 / 630-20 vacuum circuit breaker product certification.
11.2 ZW32-12 / 630-20 vacuum circuit breaker installation manual.
11.3 packing list.
11.4 Factory inspection report.