Customization: | Available |
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Electricity Type: | Vacuum |
Number of Pole: | 3 |
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AC High Voltage Vacuum Load Switch FZ(R)N25-24D
FZN25-24D/T630-20 type and FZRN25-24D/T125-31.5 type indoor ac high voltage load switch andfuse-combination unit are three-phase ac 50 Hz, rated voltage of 24kv indoor device, applicable to 24KV enduser and combined substation, can also be used as independent electrical unit in power system. This productstructure is reasonable, the spring operating mechanism developed by our company and obtains the nationainvention patent of secondary transmission mechanism, the operation is simple and reliable. The protectioneffect of the load switch and fuse-combination unit is more reliable and more economic than circuit breaker tothe transformer and other electrical equipment. Manual opening and closing operation is normally on the rightside of the load switch, and the front or left side operation can be provided according to the user's reguirements.
No | Item | Unit | FZN25-24D/T630-20 | FZRN25-24D/T125-31.5 | |||||
Rated Voltage | KV | 24 | |||||||
2 | Rated frequeney | Hz | 50 | ||||||
3 | Rated current | A | 630 | Rated current offuse 125 | |||||
4 | Rated insulation level | Short-timefrequencypower withstand voltage(lmin) | KV | Vacuum interrupter fracture 65 | |||||
Valid | Over the ground,phase 66 Isolating fracture 79 |
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Rated lightning impulse withstand voltage (peak) | Over the ground,phase 125 Isolating fracture 145; |
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5 | Rated short circuit breaking current | KA | 31.5 | ||||||
6 | Rated short time current and duration | KA/S | 20/4 | ||||||
7 | Rated active load breaking current | A | 630 | ||||||
8 | Rated closed-loop breaking current | A | 630 | ||||||
9 | Rated cable-charging breaking current | A | 16 | ||||||
10 | Rated breaking:no-loadtransformer capacity | A | 63 | ||||||
11 | Rated breaking transfer current | A | 3150 | ||||||
12 | Main circuit resistance | μΩ | <80 | <95 | |||||
13 | Phase spacing | mm | 275±3 | ||||||
14 | Rated short-cireuit making current | KA | 50 | ||||||
15 | Ratedbreaking current of a single capacitor | A | 630 | ||||||
16 | Rated breaking current of back toback capacitor | A | 400 | ||||||
17 | Rated voltage of auxiliary loop | V | AC,DC220 AC,DC110 |
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18 | Mechanical life | times | 20000 | ||||||
19 | Closing torque of vacuum interrupter | N.m | <90 | ||||||
20 | Opening force of vacuum interrupter | N | <10 |
Xiaogan Hanguang Senyuan Electric Co., Ltd, The former state-owned ndustrial enterprise which wasrestructured as a joint-stock enterprise, ls located in high technical development zone in Xiaogan cit, Hubei provinceSince the company had successfully developed ZN28A-12, ZN23 -40.5 series of a vacuum circuit breaker in1995, The company continuously engaged in development and produce 40. 5kv and lower voltage vacuum circuitbreaker, Vacuum contacto, Vacuum load break switch all along. Our 12-40.5kv vacuum circuit breakers arepublished in Recommend devices and manufactures for national urban and rural power grid construction and reformissued by State Economic and Trade Commission.
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