Yongce Group Co., Ltd.
Complete Product Introduction
1. Product Brief Introduction
The ZW32-12(F)GM series outdoor high-voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") is an outdoor switchgear with a rated voltage of 12kV, three-phase AC 50Hz. It is mainly used for switching on and off load current, overload current and short-circuit current in power lines, with overload and short-circuit protection functions. It can meet the requirements of control and measurement, and realize remote control and monitoring functions. It is widely used in substations, industrial and mining enterprise distribution systems for control and operation, and is especially suitable for frequent operation places.
The circuit breaker complies with the technical standards of GB1984-2003, DL/T 402-2007 and IEC60056.
2. Model Meaning & Explanation
The coding of the product model contains the core structural characteristics and parameter information of the circuit breaker. The specific meaning of each part of the model is as follows:
3. Normal Operating Environment
- Ambient air may be polluted by dust, smoke, corrosive gas, steam or salt mist, and the pollution grade is Grade Ⅲ;
- Wind speed shall not exceed 34m/s (equivalent to 700Pa on the cylindrical surface);
- Special use conditions: it can be used under conditions different from the specified normal use conditions, and special requirements shall be negotiated with us.
4. Technical Parameters
| Serial No. | Item | Unit | Data |
|---|---|---|---|
| 01 | Rated voltage | kV | 12 |
| 02 | Rated current | A | 630, 1250 |
| 03 | Rated frequency | Hz | 50 |
| 04 | Rated insulation level - Power frequency withstand voltage (1min) | kV | Dry type: 42/48 (break), Wet type: 34 |
| Rated insulation level - Secondary circuit to ground | 2 | ||
| Rated insulation level - Lightning impulse withstand voltage (peak) | 75/85 (break) | ||
| 05 | Rated short-circuit closing current | kA | 50, 63 |
| 06 | Rated short-time withstand current | kA | 20, 25 |
| 07 | Rated peak withstand current | kA | 50, 63 |
| 08 | Number of rated short-circuit breaking current operations | times | 30 |
| 09 | Rated short-time duration | s | 4 |
| 10 | Rated voltage of operating circuit and auxiliary circuit | V | DC220、AC220、AC/DC220 |
| 11 | Rated operating sequence | - | Open-0.3s-Close-180s-Open |
| 12 | Overcurrent release rated current | A | 5 |
| 13 | Mechanical life | times | 10000 |
| 14 | Allowable cumulative wear thickness of moving contact head | mm | 3 |
| 15 | Overcurrent release rated current | A | 5 |
| 16 | Current transformer ratio | - | 200/5, 400/5, 600/5 |
| 17 | Contact opening distance | mm | 9±1 |
| 18 | Contact overtravel | mm | 2±0.5 |
| 19 | Average opening speed | m/s | 1.2±0.3 |
| 20 | Average closing speed | m/s | 0.6±0.2 |
| 21 | Opening time | ms | 20-40 |
| 22 | Closing time | ms | 30-60 |
| 23 | Closing bounce time | ms | ≤2 |
| 24 | Three-phase closing and opening asynchronism | ms | ≤2 |
| 25 | Three-phase loop DC resistance | μΩ | ≤80 (≤150 with isolation) |
5. Structural Characteristics
- Three-pole pillar type fully sealed structure with high sealing performance;
- Reliable opening and closing performance, no combustion and explosion hazards; maintenance-free, small size, light weight and long service life;
- Moisture-proof and anti-condensation performance, suitable for use in severe cold or humid areas;
- Imported epoxy insulating parts with high temperature resistance, UV resistance and anti-aging properties;
- High-efficiency and energy-saving spring operating mechanism;
- Energy storage motor has small power and low comprehensive energy consumption; the mechanism transmission adopts direct drive mode, with few parts and high reliability;
- The operating mechanism is placed in a sealed box, effectively preventing rust and improving the reliability of the mechanism;
- Convenient and flexible manual and automatic combination performance;
- Manual or electric opening, closing and remote control operation can be adopted;
- It can be matched with intelligent controllers to realize distribution automation, and form automatic reclosing and section switch with integrated controller;
- Two-phase or three-phase current transformers can be installed for overcurrent or short-circuit protection;
- It can provide current collection signals for intelligent controllers, and metering current transformers can be installed according to user requirements;
- It can be equipped with three-phase interlocking grounding switch with anti-misoperation device; it can be connected with lightning arrester post insulator for convenient maintenance.
6. Overall Dimensions & Installation Size
7. Ordering Notes
When placing an order for the ZW32-12(F)GM outdoor high-voltage vacuum circuit breaker, please provide the following information to ensure that the product meets the actual use requirements:
- Exact product model and specification (including rated current, short-circuit breaking current, etc.);
- Whether isolation function is required;
- Operating environmental conditions (if special requirements);
- Special technical requirements (such as current transformer ratio, remote control function, etc.).
