YFZRN-24 AC Hv Vacuum Load Switch with Safe and Easy Fuse
Basic Info
Model No.: YFZRN-24
Product Description
Model NO.: YFZRN-24 Structure: Reasonable& Scientific Pole: 3 Number of Switch: Multi Control Switch Environment: Indoor High Voltage Trademark: YF Function: Industry, The Power System Usage: as Independent Electrical Unit in Power System Rated Continuous Current: 630A Certification: SGS, ISO9001, CE Test Equipment: IEC Standard Origin: Jiangyin Yunfeng, China Product Overview
YFZN-24/T630-20 indoor AC HV vacuum load switch("vacuum load switch") and YFZRN-24D/T125-31.5 indoor AC HV vacuum load switch-Fuse combination unit("combination unit") are products designs and developed independently by our company according to GB3804 and GB16926. They are applied in the AC 50Hz network with the rated voltage of 24kV and are specially designed for 24kV and users and box-type substations. They can be also applied in the power system as independent electrical units. The products have reasonable and scientific structure,flexible and reliable action and obvious isolating fracture. The combination unit can be used with the series firing-pin fuse, and the fuse is safe and easy for replacement.
Model Specification
Indoor AC HV vacuum load switch-fuse combination unit
Characteristics
a.reasonable and scientific structure
b.flexible and reliable action
c.obvious isolating 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 Techincal Parameters
Main Technical Parameters of Operation Mechanism
Permanent-magnet Single-phase DC Engergy Storage Closing Motor
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YFZN-24/T630-20 indoor AC HV vacuum load switch("vacuum load switch") and YFZRN-24D/T125-31.5 indoor AC HV vacuum load switch-Fuse combination unit("combination unit") are products designs and developed independently by our company according to GB3804 and GB16926. They are applied in the AC 50Hz network with the rated voltage of 24kV and are specially designed for 24kV and users and box-type substations. They can be also applied in the power system as independent electrical units. The products have reasonable and scientific structure,flexible and reliable action and obvious isolating fracture. The combination unit can be used with the series firing-pin fuse, and the fuse is safe and easy for replacement.
Model Specification
Indoor AC HV vacuum load switch-fuse combination unit
Characteristics
a.reasonable and scientific structure
b.flexible and reliable action
c.obvious isolating 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 Techincal Parameters
Serial No. | Item | Unint | YFZRN24 Combination Unit |
1 | Rated voltage | KV | 24 |
2 | Rated frequency | Hz | 50 |
3 | Rated current | A | Rated current of fuse:125 |
4 | Rated short-circuit breaking current | kA | 20; 31.5 |
5 | Rated active load breaking current | A | --- |
6 | Rated closed loop breaking current | A | --- |
7 | Rated cable charging breaking current | A | --- |
8 | Rated short-circuit making current | kA | --- |
9 | Rated short-time withstand current ---Load switch(including disconnector) ---Earthing switch | kA/s | --- |
--- | |||
10 | Rated breaking-transfer(handover) current | A | 3150 |
11 | 1min power-frequency withstand voltage(effective value) to earth, phase-to-phase, vacuum fracture/isloating fracture | kV/kV | 65/79 |
12 | Full-wave lightning impulse withstand voltage(peak)to earth,phase-to-phase, vacuum fracture/isolating fracture | kV/kV | 125/145 |
13 | Main loop resistance | μΩ | ≤95 |
14 | Rated breaking current of single capacitor bank | A | 630 |
15 | Rated back-to-back breaking current of capacitor bank | A | 400 |
16 | Mechanical life | Time | 2000 |
17 | Clearance between open contacts | m m | 12±1 |
18 | Gross thickness of contact wear | m m | 3 |
19 | Average opening speed | m/s | 1.1-1.7 |
20 | Average closing speed | m/s | 0.8-1.2 |
21 | Rated contact pressure | N | 2500±200 |
22 | Contact closing bounce time | ms | ≤2 |
23 | Three-phase opening and closing asynchronization | ms | ≤1 |
24 | Inter-pole center distance | mm | 275±3 |
25 | Distance between live parts and of phase to earth | mm | ≥180 |
26 | Closing operation torque of vacuum arc-extinguishing chamber | N. M | ≤90 |
27 | Opening operation torque of vacuum arc-extinguishing chamber | N | ≤10 |
28 | Rated opening operation voltage | V | ≌220/110 |
Main Technical Parameters of Operation Mechanism
Permanent-magnet Single-phase DC Engergy Storage Closing Motor
Rated Voltage | Rated Output Power | Normal Operating Voltage Range |
AC/DC220V:110V | ≤70W | 85%-110% of rated voltage |
Product Categories : 24kV Indoor HV load switch
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