ZCW10-126 OPEN TYPE COMBINATION APPLIANCES
Product Overview
ZCW10-126 Open Type Combination Appliances is complete set of combined equipment, using air as insulation, SF6 gas as arc extinguishing medium, for controlling and protection of three-phase AC 126kV transmission and distribution systems, suitable for industrial and mining enterprises substation, mountain substation.
1. The circuit breaker, current transformer,disconnecting switch, grounding switch, voltage transformer, lightning arrester and other components are organically combined on the ground steel structure support, compact structure.
2. Circuit breaker arc extinguishing chamber adopts the principle of self-energy arc extinguishing, with strong breaking ability, short arc burning time, long electrical life, full capacity break 20 times, simple and reliable structure. Circuit breaker matchs with CT26 type spring operating mechanism, compact structure, high reliability, low maintenance workload, mechanical life up to 10000 times, meet the “free oil” requirements.
3. The disconnector uses composite insulators, a single-arm straight- wrapping structure, and self-supporting graphite silver-plated chrome bronze contact fingers. The structure has good mechanical performance and strong flow capacity. Both the disconnector and the grounding switch are air insulated, and the movement track and working position are clearly visible.
Main Technical Parameters
| No. | Item | Unit |
Data |
||
| 1 | Rated voltage | kV | 126 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated insulation level | 1 min Power frequency withstand voltage (valid value) | To earth | kV | 230 |
| Fracture |
230+70 |
||||
| Lightning impulse withstand voltage (peak) | To earth | 550 | |||
| Fracture |
550+100 |
||||
| 4 | Rated current | A | 2000 | ||
| 5 | Rated short-circuit breaking current | kA | 40 | ||
| 6 | Rated short-time withstand current | kA | 40 | ||
| 7 | Rated short circuit duration | s | 4 | ||
| 8 | Rated peak withstand current | kA | 100 | ||
| 9 | Rated short circuit switching current | kA | 100 | ||
| 10 | Mechanical life | Times | 10000 | ||
Appearance And Installation Dimensions
| NO. | name | remarks |
| 1 | Primary terminal block | aluminium alloy |
| 2 | Casing failure | High strengthaluminum porcelain |
| 3 | Built in CT | Bushing type |
| 4 | Arc extinguishing chamber | Floor tank |
| 5 | Mechanism box | Including operating mechanism and secondary board |
| 6 | Channel steel support | Height 1200mm |
| 7 | Connect to the block | 1 per bracket |
| 8 | Heating sleeve | Configure according to ambient temperature |
