u Overview
BR10-PS/SPS, and BR10-PMS/SPMS series load break switches are connected to the BR-10 series controls and installed on medium voltage overhead or underground distribution lines. BR-10 series controls perform functions such as measuring electrical quantities on of distribution lines, detecting line faults, auto-sectionalizing and load-shedding through voltage and current sensors built into a load break switch. Utilities can remotely control load break switches and monitor their status by using separate communication networks, communication devices or automation systems.
u Ratings
|
Ratings |
17.5kV |
25.8kV |
36kV |
25.8kV |
|
Applied standard |
IEC62271-1, or IEC62271-103 |
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|
Rated voltage(kV) |
17.5 |
25.8 |
36 |
25.8 |
|
Rated current(A) |
630 |
630 |
630 |
630 |
|
Rated frequency(Hz) |
60/50 |
60/50 |
60/50 |
60/50 |
|
Rated short-time withstand current(kA) |
16, 3sec |
16, 3sec |
16, 3sec |
16, 1sec |
|
Rated making current(kAp)) |
40 |
40 |
40 |
32.25 |
|
Rated power-frequency withstand voltage(kV) |
50 |
60 |
70 |
60 |
|
Impulse withstand voltage(kV) |
110 |
150 |
170 |
150 |
|
Operation method |
Manually operated and/or motorized |
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Electrical and mechanical endurance |
E3 and M2 class |
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Insulation medium |
SF6 gas |
HCEP |
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Interrupting medium |
SF6 gas |
Vacuum |
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u Key Features
• BR10-PS/SPS series pole mounted load break switch is a three-phase gang operated load break switches that can electrically or manually open or close the main contact using a mechanism with single spring.
• Capacitive voltage sensors built into each phase of both sides to measure voltage
• Current sensors built into each phase on the source side to measure current
• Position indicator to indicate the position of the main contact of load break switch
• Mechanical locking device and its status contact to block any electrical or manual operations to load break switch
• Operating handle to manually operate load break switch using a hook stick
• Single control cable connection with its control
• Additional auxiliary contacts for the position of main contact
• Mounting brackets for installation on poles or frame structures
• BR10-PS series SF6 gas insulated load break switches
ü Tulip-shaped contacts to provide excellent electrical properties
ü Pressure relief device to release overpressure generated inside the tank
ü Low gas pressure indicator, mechanical locking device to block all attempts to operate LBS under low pressure and contact to indicate its status
ü Cylinder puffer to extinguish arc generated during opening and closing operations
• BR10-SPS series solid Insulated load breaks switches
ü Pole assemblies made of HCEP (Hydrophobic Cycloaliphatic Epoxy) to guarantee excellent insulation properties even in harsh outdoor climates
ü Vacuum interrupters with sufficiently field-proven electrical and mechanical reliability
u Applications
• Used as a load break switch for line fault detection and remote operation in combinationwith controls with built-in communication functions so that they can be integrated into distribution automation system
• Used as a sectionalizer to isolate faulty sections from the system by detecting the operation of upstream protective devices such as reclosers.
• Used as a load break switch for load shedding to maintain power quality of customers or distribution lines
• Used as a load break switch for backfeeding on open loop networks or radial distribution networks with multiple normally open points