Product Overview:GW5A outdoor HV AC disconnect switch
GW5A disconnect switch is a kind of outdoor HV electricity transmission equipment at three-phase Ac frequency of 50Hz/60Hz. it is used for breaking or connecting HV lines under no loads so that the power lines can be changed and connected and the way the electricity runs is changed, in addition, it can be used to exercise safe electrical insulation for such HV electric apparatuses as bus and breaker.
This product has two posts with horizontal open breaks. it is openable in the middle and accessible to the grounding switch on one side or two sides, 90"drive's isolating switch and grounding switches adopt cs11 manual operating mechanism to execute the tri-pole linkage 180⁰drive's isolating switch adopts cs11 manual operating mechanism or cs14g manual to execute the tri-pole linkage; the grounding switch adopts cs11 manual actuator to realize the tri-pole linkage.
Specifications and Parameters:
| ltem | unit | parameters | ||||
| Rated voltage | kV | 40.5 | 72.5 | 126 | ||
| Rated insulating level | Rated Power Frequency Withstand Voltage(1min) | To earth / phase lo phase | kV | 95 | 160 | 230 |
| Across isolating device | kV | 118 | 160(+42) | 230(+70) | ||
| Rated Lightening impulse withstand voltage | To earth / phase lo phase | kV | 185 | 350 | 550 | |
| Across isolating device | kV | 215 | 410 | 550(+100) | ||
| Rated Frequency | Hz | 50/60 | ||||
| Rated Current | A | 630.1250.2000. 2500.4000 |
1250.2000.2500.3150.4000 | 1250.2000. 2500.3150 |
||
| Rated short-time withstand current | kA | 20 | 40 | 50 | ||
| Raled peak withstand current | kA | 50 | 100 | 125 | ||
| Rated duration of short circuit | Primary switch/earthing switch | s | 4/4 | 3/2 | ||
| Rated terminal mechanical load | Horizontal-longitudinal | N | 750 | 1000 | 1000 | |
| Horizontal-lateral | N | 500 | 750 | 750 | ||
| Vertical force | N | 750 | 750 | 1000 | ||
| Creepage distances | mm | 1013,1256 | 1813,2248 | 3150,3906 | ||
| RiV (radio interference voitage) level | μv | —— | —— | ≤500 | ||
| Mechanical endurance | Times | 10000 | ||||
| Applicable altitudes (no more than) | m | 2000 | 2000 | 2000 | ||
| Motor operating mechanism | Model | CJ2 | ||||
| Motor voltage | V | AC380,DC220,DC110 | ||||
| Control circuit's voltage | V | AC220,AC380,DC220,DC110 | ||||
| Manual operating mechanism | Model | ES:CS11,DS,CS14G | ||||
| Electromagnetic lock's voltage | V | AC220,DC110,DC220 | ||||
Product Features:
The conductive arm made of rectangular Al-alloy pipes is characterized by high strength, light weight, large radiation area and strong resistance against corruption.
GW5A adopts particular copper alloy to develop the self-contained contact. The contact point is tightened by the elastic force of the contact itself. The contact spring is eliminated to avoid possible drop of the contact in gripping force due to the spring's corrosion and shunting, possible heating and annealing, possible increment in contact resistance, and possible vicious cycle of the growing heat of the contact. The contact is made of curved copper plate, forming a large connection area with the conductive arm. in the opening and closing processes, there is a short trip of friction between the contact and the finger and the required operating force is small. The conductive part has been acknowledged by the Chinese competent authority as a new and practical patent.
We offer the most advanced engineering design solutions and product technology solutions to global power customers, and continue to create value for the commercial success of global power customers.
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