Ningbo Tianan (Group) Co.,Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 14500 PCS/year |
| Delivery Time | 40 work days |
| Packaging Details | Wooden Case |
| Structure | Double-column Disconnector |
| Installation | Outdoor High-voltage |
| Movement Mode | Horizontal Rotary Type |
| Structure of Operating | Electric |
| Brand Name | Tianan Electric |
| Model Number | GW4A-145 |
| Certification | RoHS CE |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 14500 PCS/year |
| Delivery Time | 40 work days | Packaging Details | Wooden Case |
| Structure | Double-column Disconnector | Installation | Outdoor High-voltage |
| Movement Mode | Horizontal Rotary Type | Structure of Operating | Electric |
| Brand Name | Tianan Electric | Model Number | GW4A-145 |
| Certification | RoHS CE | Place of Origin | China |
| High Light | hv disconnect switch ，outdoor disconnect switch | ||
145kV Outdoor Disconnect Switch Substation Double Side Break Disconnector
General:
GW7B isolating switch is a kind of outdoor HV electricity transmission equipments at three-phase AC frequency of 50/60Hz. 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.
Quick Details:
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 the bus to switch current.This product has three posts with horizontal open breaks. JW10 grounding switches may be attached to the product at one or two sides. 72.5~252kV isoalting siwtch adopts CJ2 or class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 manual actuator to realize the tri-ole linkage. The grounding switch adopts CS11 or class="lazy" src="/myres/images/load_icon.gif" data-originalS manual actuator to actualize tri-pole linkage. 363kV isoalting switch adopts class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 motor's actuator to realize the single pole operation; while the grounding switch takes class="lazy" src="/myres/images/load_icon.gif" data-originalS manual actuator or class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 motor's actuator to realize the single pole operation and also tri-pole linkage.
Technical Data:
| S/N | Item | Unit | Parameter | ||||
| 1 | Rated voltage | kV | 72.5 | 145 | 252 | 363 | 420 |
| 2 | Rated insulation level | ||||||
| 3 | Rated power frequency withstand voltage (1 min) | ||||||
| 4 | To earth | kV | 160 | 275 | 460 | 210 | 520 |
| 5 | Across open breaks | kV | 200 | 275+85 | 460+145 | 210+210 | 610 |
| 6 | Rated lightning impulse withstand voltage | ||||||
| 7 | To earth | kV | 350 | 650 | 1050 | 1175 | 1425 |
| 8 | Across open breaks | kV | 410 | 650+120 | 1050+200 | 1175+295 | 1425+240 |
| 9 | Rated switch impulse withstand voltage (peak) | ||||||
| 10 | between phase/ to earth | kV | -- | -- | -- | 1425/950 | 1574/1050 |
| 11 | Across open breaks | kV | -- | -- | -- | 850+295 | 900+345 |
| 12 | Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| 13 | Rated current | A | 1250 2000 2500 3150 4000 | 1250/2000 | 2000 2500 3150 4000 5000 | 31,505,000 | 3150 |
| 14 | Rated short-time withstand current | kA | 40 50 | 31.5/40 | 50/63 | 160 | 160 |
| 15 | Rated peak withstand current | kA | 100 125 | 80/100 | 125/160 | 63 | 63 |
| 16 | Rated duration of short circuit | s | 4 | 4 | 3 | 3 | 2 |
| 17 | Rated terminal mechanical load | ||||||
| 18 | Horizontal -logntitudinal | N | 750/1000 | 1250 | 1500 | 2500 | 2000 |
| 19 | Horizontal- vertical | N | 500/750 | 750 | 1000 | 2000 | 660 |
| 20 | Vertical force | N | 750 | 1000 | 1250 | 1500 | 1500 |
| 21 | Isolating switch bus capacity of switching currents and opening/ closing | 100V, 1600A, 100 times | 100V, 1600A, 100 times | 300V, 1600A, 100 times | 450V, 3200A, 3times 400V, 1600A, 100 times | 300V, 1600A, 100 times | |
| 22 | Grounding switch induction current open/ closing capacity | ||||||
| 23 | Electromagnetic induction-typ current (current/ voltage) | A/kV | 100/4 (80/2) | 100/6 (80/2) | 160/15 (80/3) | 1250/35 (160/10) | 160/10 (80/2) |
| 24 | electrostatic induction current (current/ voltage) | A/kV | 2/6 | 5/6 (2/6) | 10/15 (3/12) | 50/50 (18/17) | 18/20 (1.25/5) |
| 25 | Times of opening and closing | times | 10 | 10 | 10 | 10 | 10 |
| 26 | isolating switch small current open/ closing capacity | ||||||
| 27 | capacitive current | A | -- | 1 | 1 | 1 | 1 |
| 28 | Inductive current | A | -- | 0.5 | 0.5 | 0.5 | 0.5 |
| 29 | RIV radio interference voltage | uV | <500 | <500 | <500 | <500 | <500 |
| 30 | Creepage distance | mm | >1813 2248 | >3625 4495 | >6300 7812 | >9450 | >10500 |
| 31 | Mechnical endurance | times | 5000 | 5000 | 1000 | 5000 | 10000 |
| 32 | Applicable altitudes | <2000 | <2000 | <2000 | <3000 | <1000 | |
| 33 | Motor operating mechanism | ||||||
| 34 | Model | CJ2 | CJ2 | class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 | class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 | class="lazy" src="/myres/images/load_icon.gif" data-originalJ2 | |
| 35 | Motor voltage | V | AC 380 DC220 | AC 380 DC220 | AC 380 DC220 | AC 380 DC220 | AC 380 DC220 |
| 36 | Control circuit's voltage | V | AC 220 DC220 DC110 | AC 220 DC220 DC110 | AC 220 DC220 DC110 | AC 220 DC220 DC110 | AC 220 DC220 DC110 |
| 37 | Opening time and closing time | s | 7+1 | 7+1 | 16+1 | 16+1 | 16+1 |
| 38 | Output shaft rotation | 180 | 180 | 180 | 180 | 180 | |
| 39 | Manual operating mechanism | ||||||
| 40 | Model | CS11 | CS11 | class="lazy" src="/myres/images/load_icon.gif" data-originalS | class="lazy" src="/myres/images/load_icon.gif" data-originalS | class="lazy" src="/myres/images/load_icon.gif" data-originalS | |
| 41 | control circuit voltage | V | AC 220 | AC 220 | AC 220 | AC 220 | AC 220 |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1969
Total Annual:
250000000-300000000
Employee Number:
3000~3500
Ecer Certification：
Verified Supplier
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office... Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office...
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