Stable insulation performance
High protection level
Good suitability
Safe & stable
Overview
Structural Features
Performance Advantages
Stable insulation performance：The vacuum interrupter is installed inside the ring main unit’s resin insulation cylinder, ensuring stable and reliable insulation performance.
High protection level：The interlocking mechanism automatically meets the “five-prevention” requirements, improving operational safety and preventing misoperation.
Good suitability：The vacuum switch is capable of breaking a 20 kA short-circuit current. When combined with protection devices, it can realize various protection functions for different application requirements.
Safe and stable：The load switch and cabinet door are mechanically interlocked. With a visible disconnection point and high breaking capacity, the product ensures safe and stable operation.
Product Photos
Technical Parameters
| Specifications | Unit | Data | ||||
| Rated voltage | kV | 12 | ||||
| Rated lightning impulse withstand voltage (peak) | kV | 75/85 | ||||
| Rated power frequency withstand voltage（1min） | kV | 42/48 | ||||
| Rated frequency | Hz | 50 | ||||
| Rated short-circuit breaking current | kA | 20、25 | 31.5 | 40 | ||
| Rated current | A | 630 | 1250 | 1600 | 1250 | 1600 |
| 1250 | 2000 | 2500 | 2000 | 2500 | ||
| 3150 | 3150 | 4000 | ||||
| Rated short-time withstand current | kA | 20、25 | 31.5 | 40 | ||
| Rated peak withstand current | kA | 50、63 | 80 | 100 | ||
| Rated short-circuit making current (peak) | kA | 50、63 | 80 | 100 | ||
| Secondary circuit power frequency withstand voltage (min) | V | 2000 | ||||
| Rated operating sequence | / | 0-0.3s-C0-180s-C0 | ||||
| Rated short-circuit duration | S | 4 | ||||
| Rated single/back-to-back capacitor | A | 630/400 | 800/400 | |||
| bank breaking current | ||||||
| Rated capacitor bank making inrush current | kA | 12.5(frequency less than 1000Hz) | ||||
| Mechanical endurance | Cycle | 10000 | ||||
| Rated number of short-circuit current interruptions | Cycle | 30 | 20 | |||
| Accumulated thickness of wear allowed for dynamic and static contacts | mm | 3 | ||||
| Rated closing and opening operating voltage | V | AC220/110DC220/110 | ||||
| Contact opening distance, overtravel | / | Opening distance 10±1; Overtravel 3±1 | ||||
| At rated operating voltage: closing and opening time | / | Closing ≦70; Opening ≦50 | ||||
| Contact closing bounce time | ms | 2 | 3 | |||
| Three phase closing and opening synchronization | / | 2 | ||||
| Average opening speed | m/s | 0.9~1.3 | ||||
| Average closing speed | m/s | 0.4~0.8 | ||||
| Main circuit resistance | μΩ | 630A:50 1250A:45 | ||||
| 1600, 2000A:40 | ||||||
| Above 2500A:30 | ||||||
Send Inquiry
Room 1102, Block A, Building 6, Expo Bay Zhonggang Plaza, No. 83 Zhanjing Rd, Bao’an District, Shenzhen, China 518103
+86 180 9898 3521
sales@euepower.com
Mon - Fri: 8:30 - 17:30 BJT
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