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Disconnecting item of line POL(VVNR)-10/630
The disconnecting item of line POL(VVNR)-10/630-20U2 applied for making and breaking of load current of transmission line with a rated voltage of 6-10 kV and a rated current of 630 A and for grounding of disconnected line segments. Recloser.
Appointment of kit:
• Manual or automatic Suspending and Unsuspending of lines with the load current
• Sectioning of power lines
• Protection of lines at overloads and at short-circuit current
• Commercial electricity metering
• Connecting automated control system with data transmission
The ability to solve problems:
• Operational switching in distribution network
• Automatic shutdown of the damaged section
• Automatic reclosing
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Features and Benefits
► Full factory readiness
► Increased reliability
► All variants of schemes
► Presence of visible gap
► Possibility of using any drive -
Technical Characteristics
Table 1. Mainly technical parameters
Item, Units
Technical parameters
Rated voltage, kV
10
Maximum operating voltage, kV
12
Rated current, A
630
Rated short-circuit breaking current, kA
3
Time of inclusion (not exceed), ms
150
Tripping time (not exceed), ms
60
Current of electrodynamic resistance kA
51
Short time withstand current (1s), kA
20
Accuracy class CTs
0,5 (0,5S)
Accuracy class VTs
0,5
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Additional Information
► Included items:
The delivery for completeness is determined by the selected main current circuit diagram and customer requirements.
