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Technical features :
1.It features a modular design and an integrated damping system .
2.The throttle orifice screw could be used to adjusted the opening and closing speed.
3.It is an integrated design of the low pressure oil tank and hydraulic cylinder.
4.It is convenient to install the external monitor module,power module and control module on the individual plane and sealed in assembly.
5.The charged piston is mounted inside the hydraulic cylinder independently ,which will not interfere with the piston rod,so that any leakage problem caused by non-coaxial arrangement is avoided .
6.The variable cross-section buffer system features a compact structure and smooth buffering.
7.The pressure management is a combination of fixed oil quantity and fixed force to keep a constant mechanical performance.
Technical parameters :
| Parameters | Units | Technical parameters | |
| Disc spring pressure travel when in rated value | mm | 59 ± 1.5(oil pressure 31Mpa) | |
| Dics spring pressure travel when in opening interlocking | mm | 20 ± 1.5(oil pressure 23Mpa ) | |
| Dics spring pressure travel when in closing interlocking | mm | 34 ± 1.5(oil pressure 26Mpa ) | |
| Dics spring pressure travel when in re-closing | mm | 51 ± 1.5(oil pressure 28.5Mpa ) | |
| Dics spring pressure travel when safety valve operating | mm | 61 ± 1.5(oil pressure 32Mpa ) | |
| Closing time | ms | ≤ 30 (low voltage ) ≤ 35) | |
| Opening time | ms | ≤ 70 | |
| Openng speed | m/s | 9.6 ± 1 | |
| Closing speed | m/s | 4.7 ± 0.7 | |
| Charged motor voltage | V | 220(DC/AC) | |
| Rated operating sequence | o-0.3s-co-180s-co | ||
| Auxiliary switch contact logarithm | 10K/10B | ||
Outline and installation dimension drawing :
State drawing:
Other types :
YYC1 Hydraulic spring operating mechanism for SF6 circuit breaker operating mechanism