| COMMERCIAL OFFER VVK 1(2)-10-20/630 (1000) U3 SERIES VACUUM CIRCUIT BREAKERS The VVK 1(2)-10-20/630 (1000) U3 vacuum circuit breakers are three-phase electric devices with electromagnetic drive and mechanical gate ensuring reliable fixation of the device while it is operational.
Such vacuum circuit breakers are designated for commutation of electric circuits under normal as well as emergency operation modes in three-phase alternating current networks of 50 GHz frequency and 10 KV voltage. They are supposed for installation within dispatching control units and monitoring/signaling units, including the possibility of replacing the oil circuit breakers.
The devices are equipped with the vacuum arc chutes of our own manufacture. The control circuit of the electromagnetic drive of these vacuum circuit breakers is located within the housing of the device and is easy to use.
The design of the lithium caps made of a firm material of Lexan-type ensures reliable protection of the vacuum chambers against the environmental impacts. Technical Properties | Parameters | Permissible values | Nominal voltage, KV
| 10 | | Maximum operating voltage, KV | 12 | | Nominal current, A | 630 (1000) | | Electrical (transient) resistance of each terminal of the main circuit, micro Ohm, not exceeding | 75 (60) | | Nominal breaking current, KA | 20 | Normalized parameters of making current, KA:
- initial actual value of periodic component
- maximum peak |
20
52 | Normalized parameters of the short-circuit steady leakage current, KA:
- maximum peak (electrodynamics endurance current)
- mean-square value of the current over the time of its flowing (thermal endurance current for a period of three (3) seconds)
- initial actual value of periodic component |
52
20
20 | | Normalized abundance of unidirectional component, %, not exceeding | 40 | | Intrinsic turn-on time, sec, not exceeding | 0,1 | | Intrinsic disconnection time, sec, not exceeding | 0,040 | | Total disconnection time, sec, not exceeding | 0,055 | | Supply voltage of control circuit (direct or alternating), V | 220 | | Supply current of turn-on electrical magnet, A, not exceeding | 30 | | Supply current of turn-off electrical magnet, A, not exceeding | 6 | | Commutation resource (number of cycles):
- under nominal current
- under nominal breaking current |
7 5000
100 | | Range of ambient temperatures, °С | - 40 ÷+55 | | Dimensions, mm | 550 x 216 x 688 | | Weight of device, kg | 72 (74) | Our postal address: 18 Novokostiantynivska St., Kiev, 04080, Ukraine
http://www.generator.com.ua
Email: oktava@generator.com.ua
Contact phones:
+38 (044) 417-01-80 - Director General, Mr. Nikolai Zakhrabov;
+38 (044) 417-75-19 - Chief Engineer, Mr. Valentin Dziuba;
+38 (044) 417-73-85 - Deputy Director in charge of production issues, Mr. Serghey Fediayev;
+38 (044) 417-73-91 - Deputy Director in charge of special purpose equipment and general engineering, Mr. Valeriy Ivanchenko;
+38 (044) 417-70-20 - Deputy Director in charge of marketing issues, Mr. Dmitriy Safonov;
+38 (044) 413-94-24 - Deputy Director, Mr. Ivan Landich;
+38 (044) 413-94-05 - Deputy Chief Engineer, Mr. Vladimir Lozinskiy;
+38 (044) 417-55-55 417-84-24 - Marketing Department;
+38 (044) 417-61-35 - Supply Department;
Fax:
+38 (044) 417-70-20 +38 (044) 417-53-58 +38 (044) 412-04-20
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