Product Overview:GW4C outdoor HV AC disconnect switch
GW4C disconnect switch is a kind of outdoor HV electricity transmission equipments at three-phase Ac frequency of 50Hz/60Hz. it is used for breaking or connecting HV lines under no loads so that these 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. The switch can open and close inductance/capacitance current and is able to open and close the bus to switch current.
This product has two insulators with horizontal center breaks. i is open able in the middle and accessible to the grounding switch on one side or two sides. The disconnect switch adopts CS14G or CS11 manual operating mechanism or CJ2 motor-based operating mechanism to realize the tri-pole linkage. The earthing switch adopts CS14G manual operating mechanism to actualize tri-pole linkage.
This product has been verified by the Chinese competent authority as having uniqueness in design and reaching international advanced level of similar products.
Specifications and Parameters:
| ltem | unit | parameters | ||
| Rated voltage | kV | 252 | ||
| Raled insulating level | Rated Power Frequency Withstand Voltage(1min) | To earth /phase to phase | kV | 460 |
| Across isolating device | 460(+145) | |||
| When the shortest distance occurs in the opening and closing of grounding switch | 291 | |||
| Rated Lightening impulse withstand voltage | To earth /phase to phase | 1050 | ||
| Across isolating device | 1050(+200) | |||
| Rated Frequency | Hz | 50/60 | ||
| Rated Current | A | 1600 2500 3150 4000 | ||
| Rated short-time withstand current | kA | 50 | ||
| Rated peak withstand current | 125 | |||
| Rated duration of short circuit | s | 3 | ||
| Raled terminal mechanical load | Horizontal-longitudinal | N | 1500 | |
| Horizontal-lateral | 1000 | |||
| Vertical force | 1250 | |||
| Bus-transfer current switching capability of disconnectors | 300V,1600A,100Times | |||
| Earthing switch induction | Electromagnetic induction - type current (current/voltage) | A/kV | 160/15(80/2) | |
| Current opening/closing capacity | Electrostatic induction - type current (current/voltage) | A/kV | 10/15(3/12) | |
| Times of opening and closing | Times | 10 | ||
| Opening/closing capacity of disconnect switch |
Capacitive current | A | 1 | |
| Inductive current | A | 0.5 | ||
| Creepage distances | mm | 6300/7812 | ||
| radio interference voltage | μ v | ≤500 | ||
| Mechanical endurance | Times | 10000 | ||
| Motor operating mechanism | Model | SRCJ2 | ||
| Motor voltage | V | AC380、DC220 | ||
| Control circuit's voltage | V | AC220、DC220 | ||
| Opening time and closing time | s | 16±1 | ||
| Output shaft rotation | 180° | |||
| Manual operating mechanism | Model | SRCS | ||
| Control circuit's voltage | V | AC220 | ||
Product Features:
The conductive arm made of rectangular A-alloy pipes is characterized by high strength, light weight, large radiation area and strong resistance against corrosion.
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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