Ningbo Tian'an Jinghua Power Technology Co., Ltd.
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| Place of Origin: | Ningbo,China |
| Brand Name: | Tianan Electric |
| Certification: | ISO9001，IEC |
| Model Number: | GW23 (GT9) |
| Minimum Order Quantity: | 1sets |
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| Price: | Pending |
| Packaging Details: | International package |
| Delivery Time: | 30 days |
| Payment Terms: | T/T, L/C, D/A, D/P |
| Supply Ability: | 5000 setss per year |
| Rated Voltage: | 252kv 363kv | Rated Current: | 2500A |
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| Withstand Current(peak): | 125KA | Service Condition: | Outdoor |
| Type: | High-voltage | Product Name: | DC 252kv 125KA HV Disconnect Switch Loop Overheating Loop Overheating |
| High Light: | 252kv HV Disconnect Switch 125KA,125KA HV Disconnect Switch,DC disconnect switch loop overheating |
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DC 252kv 125KA HV Disconnect Switch Loop Overheating Loop Overheating
General overview
GW23 (GT9) 252D/2500-50 Type Double Column Outdoor AC HV Disconnector is developed on the basis of aiming at existing defects about disconnector conducting loop overheating, operating mechanism failure, metal material corrosion serious, and then making great improvement.
DC 252kv 125KA HV Disconnect Switch Loop Overheating Loop Overheating Characteristic:
1. Application of friction type contacting structure in main knife moving conductive contact surface
2. Auto-locking device of breaking and closing positions effectively prevents the separation of dynamic/static contacts due to wind or electric motive force
3. The application of non-oil bearing and copper alloy sleeve on rotating point making it have auto-lubrication function and conquers the corrosion and seizure of the rotating point
4. Application of advanced surface processing technique and anti-rust aluminum, stainless steel greatly enhances surface anti-rust property
5. Three-pole linkage and electric/manual operation of main switch
6. Fitted with earthing switch that has the same short-circuit current withstand capability as disconnector
7. Effective prevention of mal-operation by electric/mechanical dual interlock between disconnector and earthing switch
DC 252kv 125KA HV Disconnect Switch Loop Overheating Loop Overheating Technical parameters
| S/N | Name | Unit | Parameters | |
| 1 | Rated voltage | kV | 252 | |
| 2 | Rated current | A | 2500 | |
| 3 | Peak withstand current of disconnector and earthing switch (peak) | kA | 125 | |
| 4 | 3s short-time withstand current of disconnector and earthing switch (r.m.s) | kA | 50 | |
| 5 | Main circuit resistance of disconnector | μΩ | ≤130 | |
| 6 | 1min power frequency withstand voltage(r.m.s) | Phase-to earth(dry, wet) | kV | 395 |
| Fracture | 460 | |||
| 7 | Lightning impulse withstand voltage (1.2/50μs) | Phase-to earth | kV | 950 |
| Fracture | 1050 | |||
| 8 | Mechanical endurance test of disconnector and earthing switch | Times | 2000 for each | |
Contact Person: admin
Tel: +8613858385873
