m-Smart Auto Reclosers
m-Smart Auto Reclosers are solid insulated reclosers with vacuum interrupters, encapsuled in hydrophobic cycloaliphatic epoxy resin and magnetic actuator mechanism, built for harsh outdoor unmanned power distribution applications. These auto reclosers are aimed to the improve the system reliability, downtime and cost of ownership. Keeping operator safety at high priority, conventional instrument transformers are replaced by failure proof current and voltage sensors.
FEATURES AND BENEFITS
Ease of Installation
m-Smart reclosers are compact, lightweight and pre assembled- ready to install units significantly reducing installation time
Manual Trip Operation
Manual open and lockout operation is achieved by a handle attached to a hook stick. Pulling the handle down trips and locks out the recloser unit.
Advanced Protection and Control
m-Smart Auto Reclosers are directly designed to work with MF790c Feeder Manager for both metering and protection with IEC 60870-103, 104, 101, IEC 61850 and MODBUS protocols for communication. the controller has in built features including trip circuit supervision healthy, cold lead pick up, maximum demand control and master trip.
Failure free
m-Smart Reclosers come with embedded current sensors and voltge sensors that are built to last. Current sensors work on Rogowski coil principle and voltage sensors work on capacitive voltage divider, both do not saturate due to the absense of a ferromagnetic core.
Magnetic Actuators
m-Smart Reclosers come with magnetic actuator mechanism tested for 100,000 mechanical operations. the purpose of incorporating them in a pole top recloser is to make them maintenance free, light weight.
Hydrophobic cycloaliphatic epoxy (HPEC)
HPEC is a reliable, time proven material that has a high life expectance. it is environmentally friendly, UV protected and free of SF6 gas
Significant downtime saved through Auto Reclosers and Sectionalises
| System Voltage | 12kV | 24kV/36kV |
|---|---|---|
| Rated Voltage | 12kV | 24kV/36kV |
| Rated normal Current | 630A | 800A |
| Short time current withstand capacity | 16kA | 16kA |
| Rated Frequency | 50Hz. | 50Hz. |
| Power frequency withstand voltage | 28kV(rms) | 70kV(rms) |
| Lightning impulse withstand voltage | 75kV peak | 170kV peak |
| Short circuit breaking current for circuit breaker | 16kA/3Sec | 16kA/3Sec |
| Short circuit making current for circuit breaker | 40kA | 40kA |
| Degree of protection (outdoor) | IP65 | IP65 |
| Design ambient temperature | 50 C0 | 50 C0 |
| Rated insulation level | 12/28/75 | 36/70/170 |
| Operating Sequence | O-.5S-CO-2S-CO-5S-CO | O-.5S-CO-2S-CO-5S-CO |
| Dielectric medium | Solid Dielectric Medium | Solid Dielectric Medium |
| Breaking medium | Vacuum | Vacuum |
| Operating Mechanism | Magnetic Actuator | Magnetic Actuator |
| Mechanical life | 1,00,000 Operations | 1,00,000 Operations |
| Electrical life at rated current | 100 Operations | 100 Operations |
| Auxiliary voltage | 24V | 24V |
| Relevant standards | IEC 62271-111 | IEC 62271-111 |
| Installation | Single pole, Two pole and Pedestal | Single pole, Two pole and Pedestal |
