Products
Automatic Sectionalizer
Key Features
Naten is top china manufacturer of Pole Mounted Drop Out Sectionalizer, Naten brand Medium voltage electronic sectionalizers also called AutoLink. Voltage & current rathing,11kV up to 52kV,200A.
Pole Mounted Drop Out Sectionalizer
Medium voltage electronic sectionalizers AutoLink
Save time, effort and money!
The Naten AutoLink sectionalizer is an isolating device that automatically isolates the faulted section of the overhead network when a permanent fault occurs. If a temporary fault occurs, the AutoLink allows the upstream recloser or breaker to clear the fault without interrupting the circuit. Both AutoLink electronic sectionalizer and the wireless version of Autolink, AutoLink, are designed to improve reliability and service continuity.
Key benefits
Increased reliability and continuity of service, discriminating between temporary and permanent faults
Inventory reduction: one size fits all current ratings
Simple and quick installation without special tools
Reduces maintenance time: field configurable and resettable
Reduced operation costs
Key features
Only three voltage levels: 15, 27 and 38 kV
Nominal current and number of counts settable by user
No external power source required
AutoLink family: single-phase, loadbreak, mechanical three-phase and wireless three-phase
Independent of the time-current curve
Overview
The sectionalizer is applied in three phase power system with AC 50Hz and rated voltage 10-40.5kV. It is installed on distribution overhead line to isolate fault when corporated with recloser or circuit breaker. When fault occurs on the line, the faults current reaches or exceed preset threshold value, the sectionalizer can remember the tripping times of upstream recloser. When it reaches preset times, it drops down to trip automatically.
Sectionalizer can drop down to trip automatically on the condition as given below:
First, the faults current exceeds presetting pickup current. Second, the counting time reaches presetting value (1, 2, 3 or 4). Third, the circuit loses voltage and the current is lower than 300mA. The Sectionalizer will trip automatically if the aforesaid conditions occur simultaneously. If any of aforesaid conditions doesn’t occur, the Sectionalizer will not trip automatically.
This sectionalizer uses micro-computer and operating trip mechanism and does not require external auxiliary supply.