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Looking for a reliable manufacturing partner? Let us help you scale your business.
Contact SalesBecome a Partner
Looking for a reliable manufacturing partner? Let us help you scale your business.
Contact SalesBecome a Partner
Looking for a reliable manufacturing partner? Let us help you scale your business.
Contact SalesBecome a Partner
Looking for a reliable manufacturing partner? Let us help you scale your business.
Contact Sales
Vacuum Circuit Breaker
Overview
| No | Descriptions | unit | Standard parameter values | ||
| 1.1 | Vacuum Circuit Breaker | ||||
| 1.1.1 | Model No | ZW20-12 | |||
| 1.1.2 | Switching structure | Transformer form | External or internal | ||
| Insulating Material | A:Epoxy resin outsourced silicone rubber | ||||
| B:Outdoor epoxy resin | |||||
| 1.1.3 | Insulating and extinguishing media | SF6, Vacuum | |||
| 1.1.4 | Rated Voltage | kV | 12 | ||
| 1.1.5 | Rated Current | A | 630 | ||
| 1.1.6 | Rated cable charging and breaking current | A | 20 | ||
| 1.1.7 | Rated short-circuit breaking current | kA | 12.5, 16, 20 | ||
| 1.1.8 | Temperature rise test current | 1.1Ir | |||
| 1.1.9 | Rated frequency 1 min withstand voltage | To earth/Between | kV | 42 | |
| Across the base | kV | 48 | |||
| 1.1.10 | Rated lightning impulse withstand voltage(1.2/50μs)Peak value | To earth/Between | kV | 75 | |
| Across the base | kV | 85 | |||
| 1.1.11 | Rated short-time withstand current and duration | kA/s | 20/3 | ||
| 1.1.12 | Rated peak withstand current | kA | 50 | ||
| 1.1.13 | Rated short-circuit breaking current | kA | 20 | ||
| 1.1.14 | Rated short-circuit closing current | kA | 50 | ||
| 1.1.15 | Main circuit resistance | μΩ | 80 | ||
| 1.1.16 | Mechanical stability | times | ≥10000 No load | ||
| 1.1.17 | Minimum creepage distance for external insulation | mm | 372 | ||
| 1.1.18 | Rated short-circuit breaking current breaking times | times | ≥30times | ||
| 1.1.19 | Closing and opening not synchronized | ms | ≤2 | ||
| 1.1.20 | Contact closing bounce time | ms | ≤2 | ||
| 1.1.21 | Partial discharge（1.1Ur） | pC | ≤20 | ||
| 1.2 | Operating Mechanism | ||||
| 1.2.1 | Type or model of actuator | Spring or permanent magnet mechanism | |||
| 1.2.2 | Operating Method | Motorized with manual operation | |||
| 1.2.3 | Motor Voltage | V | Conventional DC220 | ||
| 1.2.4 | Auxiliary contact capacity | DC24V、10A | |||
| 1.2.5 | DC resistance of telecommunication circuit | After 100times operations＜1Ω | |||
| 1.3 | Transformer combination mode | Includes current transformers, electronic zero sequence voltage transformers, and electromagnetic voltage transformers or other models.. | |||
| 1.4 | Current Transformer | ||||
| 1.4.1 | Rated current ratio | (1) Phase current: 600A/5A (2) Zero sequence current: 100A/1A |
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| 1.4.2 | Accuracy Level | (1) phase current: protection class 5P10 (2) Zero sequence current: use 100A/1A Protection Class 10P30. |
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| 1.4.3 | Implementation method | Electromagnetic | |||
| 1.4.4 | Temperature range | -40℃～70℃ | |||
| 1.5 | Electromagnetic voltage transformers | ||||
| 1.5.1 | Rated Voltage Ratio | Zero sequence voltage: (10kV/)/( 6.5V/3) | |||
| 1.5.2 | Accuracy Level | Zero sequence voltage: 3P level | |||
| 1.5.3 | Temperature range | -40℃~70℃ | |||
| 1.5.4 | Partial discharge | Pc | ≤20 (1.1Um) | ||
| 1.5.5 | Load Impedance | ≥2MΩ | |||
| 1.6 | Electromagnetic voltage transformers (external) | ||||
| 1.6.1 | Quantities | Pc | 1 or 2 optional | ||
| 1.6.2 | Rated Voltage Ratio | Line voltage measurement: 10kV/0.1kV Supply voltage: 10kV/0.22kV |
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| 1.6.3 | Accuracy level | Measuring voltage winding: 0.5 level Supply voltage winding: 3 levels |
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| 1.6.4 | Capacity (VA) | Measuring voltage winding: ≥10VA Supply voltage winding: long-term capacity ≥ 50VA, short-time capacity ≥ 300VA/30s |
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| 1.7 | Mechanical property | ||||
| 1.7.1 | contact opening distance | mm | 9±1 | ||
| 1.7.2 | contact overtravel | mm | 3.5±0.5 | ||
| 1.7.3 | Average closing speed | m/s | 0.4-0.8 | ||
| 1.7.4 | Average gate opening speed | m/s | 1.0-1.4 | ||
| 1.7.5 | Closing time | mm | ≤60 | ||
| 1.7.6 | Split time | Ms | ≤ 45 | ||
| 1.7.7 | Closing Bounce Time | Ms | ≤2 | ||
| 1.7.8 | Three-phase switching non-synchronous | Ms | ≤2 | ||
| 1.7.9 | Interphase center distance | mm | 280 ±1.5 | ||
| 1.8 | Enclosure protection class | Not less than IP65 | |||
| 1.10 | Box Material | 304 or hot rolled steel | Support for surface treatment | ||
| 1.11 | Secondary equipment | ||||
| 1.11.1 | Intelligent Control Terminal | Support remote local, three protection, three remote, reclosing, SOE, can also be equipped with the statute of the communication connection backstage real-time monitoring, adjusting, issuing fixed value and other configurations, other requirements to inform when ordering | One or two times are connected by aviation plug-in, without external wiring. | ||
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