ZW7-40.5 yekunze HV vacuum circuit breaker is 3-phase AC 50Hz 40.5kV outdoor switch equipment.
♦ Kuisa nzira: kuisa nheyo;
♦ Nzira yekushanda: chitubu chekushanda uye kushandiswa kwemagetsi emagetsi;
♦ Pole zvinhu: silicone rubber, ceramic;
♦ Kushandisa: kunze kwe33kV substation, magetsi emagetsi.
♦ Current transformer: in-buit installation, kunze kwekuisa.
Product Standards
♦ IEC62271-100 Yakakwira Voltage Switchgear uye Controlgear Chikamu 100: AC Circuit-breaker
♦ GB1984 Yakakwirira Voltage AC Denderedzwa-zvipwanya
♦ GB/T11022 Zvakajairwa Zvinotsanangurwa zvePamusoro-voltage Switchgear uye Controlgear Mitemo
♦ JB/T 3855 High Voltage AC Vacuum Circuit-breakers
♦ DL/T402 Tsanangudzo yeHigh-voltage AC Circuit-breakers
Environmental Conditions
♦ Ambient tembiricha: -40°C~+40°C;
♦ Altitude:
♦ Kumhanya kwemhepo kukuru i10km/h, mhepo shoma shoma yezinga rakarongwa (132/230kv) i3.2km/h;
♦ Kudengenyeka kwepasi:
♦ Diminimum nominal creepage distance: 31mm/kV;
♦ Dhigirii yekusvibiswa kwemhepo: Kirasi IV.
Main Technical Parameters
Aihwa | Item | Unit | Value | |
1 | Rated voltage | kV | 40.5 | |
Zviri | Ratedinsulationlevel | 1 min simba frequencyDry bvunzo (kutsemuka, pakati-chikamu, pasi)Muyedzo wemvura (kunyika, kuvharisa kwekunze) | kV | 95 85 |
Mheni ine simba inomira voltage (peak) | 185 | |||
3 | Rated current | A | 1250, 1600, 2000, 2500 | |
4 | Rated short circuit breaking current | kA | 20, 25, 31.5 |
Aihwa | Item | Unit | Value |
5 | Yakatemerwa pfupi dunhu kugadzira ikozvino (peak) | kA | 50, 63, 80 |
6 | Rated peak inomira ikozvino | kA | 50, 63, 80 |
7 | Yakatemerwa nguva pfupi inomira ikozvino | kA | 20, 25, 31.5 |
8 | Rated kushanda kutevedzana | O-0.3S-CO-180S-CO | |
9 | Rated short circuit breaking current breaking number | nguva | 20 |
10 | Yakatemerwa nguva pfupi yedunhu | s | 4 |
11 | Nguva yekuzorora | s | ≤0.09 |
12 | Mechanical hupenyu | nguva | 10000 |
13 | Ichangobva kugadzirwa vacuum interrupter | Mapisarema | ≤1.33×10-3 |
Vacuum interrupter panguva ye20-gore yekuchengetedza nguva | -2 | ||
14 | Circuit breaker net huremu | kg | 800 |
15 | Clearance pakati akavhurika contacts | mm | 22±2 |
16 | Bata kufamba | mm | 4±1 |
17 | Avhareji yekuvhura kumhanya | m/s | 1.4-1.7 |
18 | Kumhanya kweavhareji yekuvhara | m/s | 0.4-0.7 |
19 | Bata yekuvhara bounce nguva | ms | ≤3 |
20 | Inter-phase kuvhura nekuvhara synchronism | ms | ≤2 |
makumi maviri nerimwe | Nguva yekuvhara | ms | 50≤t≤200 |
makumi maviri nemaviri | Nguva yekuvhura | ms | 30≤t≤60 |
makumi maviri nenhatu | Chimwe nechimwe chikamu chikuru chedunhu DC kuramba (kwete CT yemukati kuramba) | mΩ | ≤100 |
makumi maviri nemana | Dynamic uye yakamisikidzwa kubata cumulative ukobvu inobvumirwa kupfeka | mm | 3 |
25 | Rated contact pressure | N | 2500±200 |
General Structure Drawing uye Kuisa Saizi (chikamu: mm)
♦Side-mechanism mhando
♦Mid-mechanism mhando