High Voltage Insulation Members DMC & SMC Series - China Factory Suppliers for Superior Performance and Durability
High Voltage Insulation Members DMC & SMC Series - China Factory Suppliers for Superior Performance and Durability
VVP-12/1250-31.5A
| MAIN TECHNICAL DATA | ||
| 1 | Rated voltage | 12kV |
| 2 | Rated current | 1250A |
| 3 | Rated frequency | 50HZ |
| 4 | Rated short-circuit breaking current | 31.5kA |
| 5 | Operations of short-circuit breaking current interruption | 30 Times |
| 6 | Rated short-circuit making current | 80kA |
| 7 | Rated peak withstand current | 80kA |
| 8 | Rated short-time withstand current (4s) | 31.5kA |
| 9 | Rated single capacitor bank breaking current | 630A |
| 10 | Rated back-to-back capacitor breaking current | 400A |
| 11 | Short-time (1min) power-frequency withstand voltage | 42kV |
| 12 | Lighting impulse withstand voltage (peak) | 75kV |
| 13 | Circuit resistance at rated contact force | ≤25μΩ |
| 14 | Mechanical life | 30,000 Times |
| 15 | Contact closing force due to bellows and atmosphere | 120±50N |
| 16 | Counter force at rated contact stroke | 180±50N |
| 17 | Contact limit erosion | 3mm |
| 18 | Shelf life | 20 years |
| 19 | Partial discharge | ≤IPC |
| 20 | Rated operating sequence | O-0.3s-CO-180s-CO |
| MECHANICAL DATA OF CIRCUIT-BREAKING EQUIPPED WITH THE INTERRUPTERS | ||
| 1 | Rated contact stroke | 9+1mm |
| 2 | Contact connection stroke | 4±1mm |
| 3 | Average opening speed | 1.1±0.2m/s |
| 4 | Average closing speed | 0.6±0.2m/s |
| 5 | Rated operation pressure of contact | 3100+200N |
| 6 | Bounce duration of contact closing | ≤2ms |
| 7 | Out of simultaneity of contact closing and opening | ≤1ms |
| 8 | Max. Overtravel | ≤2mm |
Contact Arm Sleeve
Contact arm sleeve 630、1250A
VVP-12, 1250-31.5A — Compatible Specifications: 630-25, 1250-25, 1250-31.5A
Solid-sealed contact arm sleeves 1250, 31.5, 630, 25
VS1 Insulating Components
VS1 Insulating Pull Rod
VS1 Insulating Pull Rod
VS1-Insulated Pull Rod
VPP-12 — Compatible Specifications: 630-25, 1250-31.5A
VS1-Insulating Cylinder 630-1250A
VS1 Contact-arm-sleeve 630、1250A
ZW20-12 Components
ZW20-12 — Casing
ZW20-12 Casing (1)
ZW20-12 Casing (2)
ZW20-12, 24KV — Insulating Tie Rod
ZW20-12, 630A — Insulating Tie Rod
ZW20-12, 630A — Insulating Bracket
ZW20-12, 630A — Fixing Plate
Insulating Components & Assemblies
Insulating Components (Miniaturized) — Schematic Diagram of Internal Component Assembly of Insulating Sleeve
ZW43-12 Components
ZW43-12 — Insulated Tie Rod (Suitable for damp areas)
ZW43-12 Insulated Tie Rod
ZW43-12 Three-Post Insulating Tie Rod
ZW43-12 Insulating Sleeve
ZW32-12 Components
ZW32-12, 630A — Insulating Tie Rod
ZW32-12, 1250A — High-altitude Insulated Tie Rod (Suitable for damp areas)
ZW32-12, 630A — Bottom Outgoing Line (Double Isolation)
630A Bottom Outgoing Line (Double Isolation)
630-1250A Bottom Outgoing Line
ZW32-12, 630A — Upper & Lower Insulating Cylinder
Upper Insulating Cylinder
Lower Insulating Cylinder
CH3-12 Components
CH3-12, 190 — Rated Current 1600A
CH3-12/190 · 1600A
CH3-12/150 · 630-1250A
CH3-12/250 · 2500-3150A
TG-12 Busbar Bushing
⚠ Note: Please specify the busbar dimensions when ordering.
TG-12 / 195×180×110
TG-12 / 255×100×100
TG-12 / 235×126×126
Post Insulators — FN5 / FN7 / ZJ10-12
FN5-10, φ75×130 Post Insulator
FN5-10 φ75×130
FN7-10 φ65×140
ZJ10-12 Post Insulators
ZJ10-12 φ65×130
ZJ10-12 φ85×140
ZJ10-12 φ85×170
ZJ10-12 φ85×140 (view 2)
ZJ10-12 φ85×140 (view 3)
ZJ10-12 φ85×150
DXN-12 Indoor High Voltage Live-Line Indicators & Sensors
DXN-12 (T-type)
DXN-T (V-type)
DXN-12 Sensors
DXN-12 φ65×130 Sensor
DXN-12 φ65×140 Sensor
ZW32-12 Isolation Components
ZW32-12 Isolation Rod
ZW32-12 Isolating Insulator
HCA-12 Double-ended Bushing Socket
HCA-12 (European Style)
HCA-12 Standard
ZW8-12 Components
ZW8-12/630A Insulating Cover
ZW8-12/1250 Conductive Rod
ZW8-12/630A — Insulating Support Rod & Insulating Tie Rod
ZW8-12/630A Insulating Support Rod
ZW8-12/630A Insulating Tie Rod
ZN23-40.5A Components
ZN23-40.5A Insulator
ZN23-40.5A Support Rod
ZN23-40.5A Insulating Pull Rod
Frequently Asked Questions
Q
What is the rated voltage and current of the VVP-12/1250-31.5A vacuum interrupter?
The VVP-12/1250-31.5A vacuum interrupter has a rated voltage of 12kV and a rated current of 1250A. It is designed for medium-voltage switchgear applications and complies with standard 50Hz power system requirements.
Q
What is the mechanical life of the VVP-12/1250-31.5A vacuum interrupter?
The VVP-12/1250-31.5A has a mechanical life of 30,000 operations, making it highly durable for long-term use in high-frequency switching environments. Its shelf life is rated at 20 years.
Q
What vacuum interrupter models are compatible with VVP-12/1250-31.5A?
The VVP-12/1250-31.5A is compatible with multiple specifications including 630-25, 1250-25, and 1250-31.5A models. It is also dimensionally compatible with VPP-12 series interrupters (630-25, 1250-31.5A), providing flexible replacement options.
Q
What types of insulating components are available for ZW32-12 and ZW43-12 circuit breakers?
For ZW32-12, available insulating components include insulating tie rods (630A and 1250A high-altitude types), upper and lower insulating cylinders, bottom outgoing line assemblies (single and double isolation), and isolating insulators. For ZW43-12, insulating tie rods, three-post insulating tie rods (suitable for damp areas), and insulating sleeves are available.
Q
What should I specify when ordering TG-12 busbar bushings?
When ordering TG-12 busbar bushings, you must specify the exact busbar dimensions. Available standard sizes include 195×180×110, 255×100×100, and 235×126×126. Providing the correct busbar size ensures proper fit and electrical performance in your switchgear installation.
Q
What are the key electrical withstand ratings of the VVP-12/1250-31.5A?
The VVP-12/1250-31.5A features a short-time (1 min) power-frequency withstand voltage of 42kV and a lightning impulse withstand voltage (peak) of 75kV. The rated short-circuit breaking current is 31.5kA, with a rated peak withstand current and short-circuit making current of 80kA, ensuring reliable performance under severe fault conditions.