Dingli Electric's main products include five series: environmentally friendly ring network cabinets, environmentally friendly high-voltage metering cabinets, deeply integrated pole-mounted switches, European-style box-type transformers, Siemens-authorized NXAirsLP medium-voltage cabinets and SIVACON 8PT low-voltage cabinets, and Eaton-authorized RVAC series ring network cabinets, etc.
ZW32-12/T630-20
Outdoor high-voltage vacuum circuit breaker
The ZW32-12/T630-20 outdoor AC high-voltage vacuum circuit breaker is a three-phase AC 50Hz outdoor power distribution device with a rated voltage of 12KV. It is mainly used for switching on and off load current, overload current, and short-circuit current in the power system. It is suitable for substations, rural and urban grid renovations, and places with frequent operations, such as industrial and mining enterprises. When used with different models of intelligent controllers, it can be used as an automatic recloser and intelligent sectionalizing circuit breaker, and can achieve distribution network automation.
Product Classification:
Key words:
- Product Overview
The ZW32-12/T630-20 outdoor AC high-voltage vacuum circuit breaker is a 12KV rated voltage, three-phase AC 50Hz outdoor power distribution equipment. It is mainly used for opening and closing load current, overload current and short-circuit current in the power system. It is suitable for substations, rural and urban power grid renovation, and frequent operation sites such as industrial and mining enterprises. When used with different types of intelligent controllers, it can be used as an automatic recloser and intelligent sectionalizing circuit breaker, and realize power grid automation.
- Product Features
●The pole studs are cast with liquid silicone rubber, which has the characteristics of high temperature resistance, UV resistance, and aging resistance.
● The breaking performance is stable and reliable, with no risk of combustion or explosion. It features maintenance-free operation, small size, light weight, and long service life.
● Fully sealed structure, good moisture and dew condensation prevention, the operating mechanism has no rust problems, suitable for cold and humid areas.
● Complete and diverse structural forms, can realize internal and external capacitor power supply, installation of electronic and electromagnetic current transformers,
● It can be equipped with a three-phase interlocking isolator, and there is a reliable anti-misoperation interlock device between it and the circuit breaker body.
● It can be compatible with box-type FTU and hood-type FTU from various domestic manufacturers, meeting the requirements of primary and secondary integration and deep integration functions, and meeting the needs of different users.
- Selection Specification Table
Serial Number | Phase Spacing (mm) | Capacitor Power Supply Method | Transformer Type | Isolator Switch | Installation Dimensions |
1 | 340 | None | None | None | 920×160 |
Built-in | Electromagnetic | ||||
External | Electronic | ||||
2 | 340 | None | None | None | 1220×160 |
Built-in | Electromagnetic | ||||
External | Electronic | ||||
3 | 340 | None | None | None | 1000×160 |
Built-in | Electromagnetic | ||||
External | Electronic |
- Product Parameters
Serial Number | Item Name | Unit | Parameter Value |
1 | Rated Voltage | kV | 12 |
2 | Rated Current | A | 630 |
3 | 1min Power Frequency Withstand Voltage | kV | Dry Test (Phase-to-Phase, Ground Break) 42/48 |
Wet Test (Phase-to-Phase, Ground Break) 30/36 | |||
4 | Lightning Impulse Withstand Voltage | kV | Dry Test (Phase-to-Phase, Ground Break) 75/85 |
5 | Rated Short-Circuit Breaking Current | kA | 20（25） |
6 | Rated Short-Circuit Making Current | kA | 20（63） |
7 | Rated Peak Withstand Current | kA | 50（63） |
8 | 3s Short-Time Withstand Current | kA | 20（25） |
9 | Operating Sequence |
| Open-0.3s-Open-Close-180s-Open-Close |
10 | Rated Short-Circuit Current Breaking Times | Times | 30 |
11 | Mechanical Life | Times | 10000 |
12 | Contact Gap | mm | 9±1 |
13 | Contact Overtravel | mm | 2~3 |
14 | Average Closing Speed | m/s | 0.8±0.2 |
15 | Average Opening Speed | m/s | 1.2±0.2 |
16 | Closing Bounce Time | ms | ≤2 |
17 | Three-Phase Opening Asynchronous | ms | ≤2 |
18 | Closing Time | ms | ≤60 |
19 | Opening Time | ms | ≤45 |
20 | Per Phase Loop Resistance (Without Isolation) μΩ |
| ≤120 |
21 | Net Weight | kg | 190 |
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The main products of Dingli Electric are five series: environment-friendly ring network cabinet, environment-friendly high-voltage metering cabinet, deep fusion column switch, European box transformer, Siemens authorized NXAirsLP medium-voltage cabinet and SIVACON 8PT low-voltage cabinet, Eaton authorized RVAC series ring network cabinet, etc.
