Product Overview:GW6B outdoor HV AC disconnect switch
GW6B disconnect switch is a kind of outdoor HV electricity transmission equipment at three-phase AC frequency of50Hz/60Hz. lt 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, n 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 is of the single-post bi-arm vertical telescope type (scissor-type) and suitable for the bus's disconnect switch it can be laid out directly under the bus, thus occupying a small area. ts effect of saving energy can be prominent at the substation where double bus lines are accompanied by the bypass bus.The disconnect switch is accompanied by a JW10 earthing switch which will be used for the bus grounding at the lower layer, The grounding of the bus line at the upper layer requires the use of an independent earthing switch. 363kV and 550kv disconnect switch and earthing switch are equipped with the sRcJ8 motor actuator for the single pole operation. Meanwhile, the tri-pole linkage can be achieved. The 126kV and 252kV disconnect switches adopt SRcJ3 motor-based actuator to realize the tri-pole linkage. The earthing switch adopts SRCS manual actuator to actualize tri-pole linkage.
This disconnect switch has passed the verification by the review procedure organized by China Machinery industry Federation that the product structure and performance satisfy the requirements on perfection, and product's performance indices have reached the internally level of the same kinds of products.
Specifications and Parameters:
| ltem | unit | parameters | ||||||
| Product model | GW6B-126D(G·W) | GW6B-145D(G·W) | GW6B-252D(G·W) | GW6B-420D(G·W) | GW6B-550D(W) | |||
| Rated voltage | kV | 126 | 145 | 252 | 420 | 550 | ||
| Rated insulating level |
Rated Power Frequency Withstand Voltage(1min) |
To earth / phase lo phase | kV | 230 | 275 | 460 | 520 | 740 |
| Across isolating device | 230+(70) | 315 | 460+(145) | 610 | 740+(315) | |||
| Rated Lightening impulse withstand voltage | To earth / phase lo phase | 550 | 650 | 1050 | 1425 | 1675 | ||
| Across isolating device | 550+(100) | 750 | 1050+(200) | 1425+(240) | 1675+(450) | |||
| Rated operating impulse withstand voltage (peak) | To earth / phase lo phase | —— | —— | —— | 1050/1575 | 1300/1950 | ||
| Across isolating device | —— | —— | —— | 900(+345) | 1175+(450) | |||
| Rated Frequency | Hz | 50/60 | ||||||
| Rated Current | A | 2000,3150 | 2000,3150 |
2000,2500,3150, 4000,5000 |
4000 | 4000 | ||
| Raled peak withstand current | kA | 125 | 104 | 125/160 | 164 | 160 | ||
| Rated short-time withstand current | kA | 50 | 40 | 50/63 | 63 | 63 | ||
| Rated duration of short circuit | s | 3 | 3 | 3 | 2 | 3 | ||
| Rated terminal Mechanical load | Horizontal-longitudinal | N | 1250 | 1250 | 2000 | 4000 | 4000 | |
| Horizontal-lateral | 750 | 800 | 1500 | 2000 | 2000 | |||
| Vertical force | 1000 | 1000 | 1250 | 1500 | 2000 | |||
| Bus-transfer current switching capability of disconnectors | mm |
100V,1600A, 100times |
100V,1600A, 100times |
435V,2400A, 100times |
350V,2400A,100times | |||
| Rated coniact area |
Longitudinal displacement of guidewires (hard guidewire/soft guidewire) |
100/100 | 100/100 | 150/200 | 150/200 | 175/200 | ||
| Horizontal offset in tolal (hard guidewire/soft guidewire) | 100/350 | 100/350 | 150/500 | 15/500 | 175/600 | |||
| Vertical offset (hard guidewire/soft guidewire) | 100/200,300 | 100/200,300 | 150/250,450 | 150/300,500 | 175/400,500 | |||
| isolating switch small Current opening/closing capacity | Capacitive current | A | 1 | 1 | 1 | 1 | 2 | |
| inductive current | A | 0.5 | 0.5 | 0.5 | 0.5 | 1 | ||
| RIV (radio interference voltage) | μv | ≤500 | ≤500 | ≤500 | ≤2500 | ≤500 | ||
| Creepage distances | mm | 3150/3906 | 3625/4495 | 6300/7812 | 10500/13020 | 13750 | ||
| Motor operating mechanism | Model | SRCJ7 | SRCJ3 | SRCJ8 | ||||
| Motor voltage | V | AC380/DC220 | ||||||
| Control circuit's voltage | V | AC220/DC22/DC110 | ||||||
| Opening time and closing time | s | 12±1 | 16±1 | |||||
| Output shaft rotation | 135° | 180° | ||||||
|
Manual operating mechanism |
Model | SRCS | ||||||
| Control circuit's voltage | V | AC220,DC220,DC110 | ||||||
Product Features:
Superior conductance system
With open structure, conductor is laid out in the middle of the transmission base while the main rod and reverse connecting rod are installed outside. Balancing spring is sealed with aluminum cover and transmission parts needing debugging are exposed for easy installation and debugging. dust prevention. Add a dust cover to bearing and adopt seal structure externally.
Contact forceps can cover a large area of rated contact, This product is in the double arm telescopic (scissor-type) structure, The forceps of the moving contact cover a large area of rated contact, particularly applicable to soft bus line, and also to hard bus line.
Open gear box, which has a good visibility, is convenient for installation, debugging and maintenance, The main crank arm is combined with operating flange to reduce the transmission link and the height of transmission base, which can improve the transmission efficiency and reliability. The rotation shaft is designed as double bearing structure so that the transmission is flexible and reliable.
Structural design: the separation of machines from power.The design concept is the separation of machines from power, that is, the conductive elements, springs and mechanical driving elements are mutually isolated to prevent current from passing through springs and mechanical driving elements. Ln this way, the stability of the driving elements can be enhanced.
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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