RCW-T21.9M 21.9kV MV outdoor vacuum recloser
$5000.00
| Brand | ROCKWILL |
| Model NO. | RCW T21.9M MV outdoor vacuum recloser |
| Rated voltage | 21.9kV |
| Rated normal current | 400A |
| Rated short circuit breaking current | 12.5kA |
| Power frequency withstand voltage | 85kV/min |
| Rated lightning impulse voltage | 185kV |
| manual closing | No |
| Series | RCW |
Description：
The RCW series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for allvoltage classes 11kV up to 38kV at 50/60Hz power system. and it’s rated current can reach 1250A.The RCW series automatic circuit reclosers integrates the functions of control, protection, measurement, communication, fault detection, on-line monitoring of closing or opening.The RCW series vacuum recloser is mainly combined with integration terminal, current transformer, permanent magnetic actuator and it’s recloser controller.
Features：
Optional grades available in rated current range.
With optional relay protection and logic for user selection.
With optional communication protocols and I/O ports for users to choose.
PC software for controller testing, setup, programming, updates.
Parameters：
Rated maximum voltage |
21.9kV |
|
Rated maximum current |
1250A |
|
Rated frequency |
50Hz |
|
Rated short circuit breaking current |
12.5kA |
|
Rated peak value withstand current |
31.5kA |
|
Rated 1min power frequencywithstand voltage（Single-phase Epoxy resin pole） |
85kV |
|
Rated lightning impulse voltage（Single-phase Epoxy resin pole） |
185kV |
|
Operation sequence |
C-0.5-CO-2-CO-5-CO（Magnetic actuator） |
|
Mechanical life |
n:30000（Magnetic actuator） |
|
Power supply and operating voltage |
110/220V( Customized) |
|
Ratio of current transformer |
400/1A( Customized) |
|
Number of voltage sensors（Single-phase Epoxy resin pole） |
≤2 |
|
Opening time |
≤20ms（Magnetic actuator） |
|
Closing time |
≤30ms（Magnetic actuator） |
|
Minimum creepage distance |
31，level4（mm/kv） |
|
Minimum distance between phases |
360mm |
|
Potential transformer |
110/220V( Customized) |
|
Cable length |
6,8,12m( Customized) |
|
Cable clamp（Single-phase Epoxy resin pole） |
4-hole NEMA |
|
Lightning arrester |
≤6 |
|
Mounting type |
Single / double column |
|
With optional relay protection& logics for user choice |
Instantaneous over-current protection |
|
Timing over-current protection |
||
Negative sequence over-current protection |
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Directional over-current protection(*) |
||
Over-voltage protection./Under voltage protection |
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Programable protection relay curves total 10 nos ANSI/IEC curves |
||
Cold load pickup protection TCC +Hot line tag |
||
Earth protection EF/SEF +Zone Sequence Co-ordination |
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More relay functions can be customized |
||
With optional communication protocols & I/O port for user choice |
RS-232 and RS-485 ports supporting |
|
DNP3.0 communication protocol support(*) |
||
Modbus communication protocol is optional(*) |
||
IEC 60870-5-101 communication protocol support |
||
IEC 60870-5-104 communication protocol support.(*) |
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The recloser can communicate through GPRS(Or GSM) modem with English or Specified language (*) |
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With optional functions for use |
Rated currents, System phase current. |
|
Rated voltages, System phase voltage& secondary low voltage power supply voltage. Frequency, power(kWh), reactive power(kV arh), power factor |
||
With optional reclosing interval for user pre-program |
Reclosing times setting support |
|
Dead time setting support |
||
With events recording function |
SOE 10000 operations record |
|
Fault record and normal operation record |
||
Note: (*) mean should customized by manufacturer if needed |
||
External dimensions：
Environmental requirement：
Maximum temperature: |
+40℃ |
Minimum temperature: |
-30℃ |
Monthly average humidity |
95% |
Humidity: |
90% |
Above sea level: |
2500m or higher |
Ambient air not apparently polluted by corrosive and flammable gas, vapor |
|
Product show：
What are the scenarios in which the 38kV outdoor vacuum recloser is used？
38kV Overhead Transmission Lines: Widely used in branch lines and end lines of 38kV overhead transmission lines as control and protection devices. When a fault occurs in the line, the recloser can quickly interrupt the fault current and automatically perform reclosing operations, reducing downtime and improving power supply reliability.
38kV Substation Outgoing Lines: Installed on the outgoing side of 38kV substations to control and protect the electrical connections between the substation and the transmission lines. When a fault occurs in the substation outgoing lines, the recloser can promptly isolate the fault, ensuring the safe operation of the substation, and quickly restore power supply through the reclosing function.
38kV Distribution Network Automation System: As one of the key devices in the distribution network automation system, the recloser works in conjunction with other intelligent devices to achieve remote monitoring, control, and fault location functions for the distribution network. By communicating with feeder terminal units (FTUs) and distribution automation master stations, the recloser receives control commands and uploads operational status information, enhancing the automation level and operational management efficiency of the distribution network.
