11kv Vacuum Arc Extinction Load Break Switch Indoor Use-Fzn21
Basic Info
Model No.: FZN21-12D/T630-20
Product Description
Model NO.: FZN21-12D/T630-20 Test Equipment: IEC Standard Fuction: Breaking and Making The Load Current Trademark: YF Environment: Indoor High Voltage Application: Indoor Power Distribution Net Certification: ISO9001,SGS,Ce Origin: Jiangyin Yunfeng, China Product Overview
YFZN21(FZN21)-12 indoor AC HV load switch and load switch-fuse combination unit is applied in the indoor power distribution net with the rated voltage of 12kV and frequency of 50Hz for breaking and making the load current. It has advantages of compact structure, long electrical endurance, availability for frequent operation, basically no maintenance, strong breaking and making capacity, safety, reliability and obvious isolating fracture, ect. Its performance meets requirements of GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009 High-voltage alternating current switch-fuse combinations.
Model Specification
Indoor AC HV Vacuum Load Switch
Characteristics:
---compact structure
---long electrical endurance
---availability for frequent operation
---basically no maintenance
---strong breaking and making capacity
---safety, reliability and obvious isloating fracture
Service Conditions
1.Altitude≤1000m;
2.Ambient temperature-25ºC-+ 40ºC;
3.The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be larger than 90%:
4.The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and steam;
5.The site without fire hazards and explosion hazards;
6.The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°
Main Technical Paramenters
Note: The sensor with live display can be used for the Switch Insulator
Selection of HV current-limiting fuse
The model of recommended fuse is XRNT-12HV current-limiting fuse;
The impact output energy of recommended fuse is:1J(Joule) middle-sized.
Contact us if you need more details on Load Break Switch. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about Vacuum Arc Extinction Principle、Switchgear. If these products fail to match your need, please contact us and we would like to provide relevant information.
YFZN21(FZN21)-12 indoor AC HV load switch and load switch-fuse combination unit is applied in the indoor power distribution net with the rated voltage of 12kV and frequency of 50Hz for breaking and making the load current. It has advantages of compact structure, long electrical endurance, availability for frequent operation, basically no maintenance, strong breaking and making capacity, safety, reliability and obvious isolating fracture, ect. Its performance meets requirements of GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009 High-voltage alternating current switch-fuse combinations.
Model Specification
Indoor AC HV Vacuum Load Switch
Characteristics:
---compact structure
---long electrical endurance
---availability for frequent operation
---basically no maintenance
---strong breaking and making capacity
---safety, reliability and obvious isloating fracture
Service Conditions
1.Altitude≤1000m;
2.Ambient temperature-25ºC-+ 40ºC;
3.The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be larger than 90%:
4.The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and steam;
5.The site without fire hazards and explosion hazards;
6.The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°
Main Technical Paramenters
Serial No. | Item | Unit | YFZN21-12 HV Load Switch |
1 | Rated voltage | kV | 12 |
2 | Rated frequency | Hz | 50 |
3 | Rated current | A | 630; |
4 | Rated short-circuit breaking current of fuse | kA | --- |
5 | Rated breaking-transfer(handover)current | A | --- |
6 | Rated active load breaking current | A | 630 |
7 | 5% rated active load breaking current | A | 31.5 |
8 | Rated closed loop breaking current | A | 630 |
9 | Rated cable charging breaking current | A | 10 |
10 | Rated line charging breaking current | A | 1 |
11 | Rated earthing fault breaking current | A | 30 |
12 | Rated cable charging breaking current under earthing fault conditions | A | 17.4 |
13 | Rated short-time withstand current(thermal ---Load switch(including disconnector) | kA/s | 20/4 |
stability current) ---Earthing Switch | kA/s | 20/2 | |
14 | Rated short-circuit making current | kA | 50 |
15 | Rated peak withstand current(dynamic current) | kA | 50 |
16 | 1 min power-frequency withstand voltage(effective value)to earth,phase-to-phase,vacuum fracture/isolating fracture | kV/kV | 42/48 |
17 | Full-wave lightning impluse withstand voltage(peak) to earth,phase-to-phase,vacuum fracture/isolating fracture | kV/kV | 75/85 |
18 | Main loop resistance | μΩ | ≤100 |
19 | Mechanical life | Time | 10000 |
20 | Clearance between open contacts | mm | 9±1 |
21 | Overtravel(compression length of contact spring) | mm | |
22 | Gross thickness of contact wear | mm | 3 |
23 | Average opening speed | m/s | 0.8~1.2 |
24 | Average closing speed | m/s | 0.45~0.85 |
25 | Rated contact pressure | N | 900±200 |
26 | Connact closing bounce time | ms | ≤2 |
27 | Three-phase opening and closing asynchronization | ms | ≤1 |
28 | Inter-pole center distance | mm | 210±3 |
29 | Distance between live parts and of phase to earth | mm | ≥125 |
30 | Closing operation torque of vacuum arc-extinguishing chamber | N.m | ≤80 |
31 | Opening operation force of vacuum arc-extinguishing chamber | N | ≤10 |
32 | Rated closing operation voltage | V | ≌220/110 |
33 | Rated opening operation voltage | V | ≌220/110 |
34 | Time of switch opening triggered by breaking of fuse | ms | --- |
35 | Impact output energy at breaking of fuse | J(Joule) | --- |
Selection of HV current-limiting fuse
Transformer capacity(kVA) | 100 | 125 | 160 | 200 | 250 | 300/315 | 400 | 500 | 630 | 750/850 | 1000 | 1250 | 1600 | 2000 | 2500 |
Rated current of fuse(A) | 16 | 16 | 16 | 20 | 25 | 31.5 | 40 | 50 | 63 | 80 | 80 | 100 | 125 | 160 | 200 |
The model of recommended fuse is XRNT-12HV current-limiting fuse;
The impact output energy of recommended fuse is:1J(Joule) middle-sized.
Contact us if you need more details on Load Break Switch. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about Vacuum Arc Extinction Principle、Switchgear. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : 12kV Indoor HV Load Switch
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