ORION ITALIA VIETNAM – Power Protection Relay SMPR-155 ORION ITALIA
| 100% Italy Origin | Orion Italia Vietnam | Model: SMPR-155 Power Protector Current, Voltage & Power Protection Relay Inputs Phase 5A Ground 5A (27,32,37,46,47,50,50 N/G,51,51 N/G,55,59,68,81,86) |
SMPR Overcurrent, Voltage and Power Protection Relay
The SMPR has been designed to measure RMS line and ground currents and supply RMS voltages under normal conditions or under disturbances. This information is processed internally by the microprocessor, in order to take protection actions defined by the user under ANSI, IAC or IEC standards. The operating conditions of the switch or disconnector are also indicated.
Applications
- Primary and backup protection for utility feeders, power plants and industrial distribution systems
- Protection of transformers, overhead lines, cables and generators
Protection and Functionality
- (27) Undervoltage
- (32) Directional power
- (37) Current
- (46) Negative sequence current
- (47) Phase sequence voltage
- (50) Instantaneous phase overcurrent
- (50N/50G) Instantaneous ground overcurrent
- Overload alarm activation level
- (51) Inverse time phase overcurrent
- (51N/51G) Inverse time ground overcurrent
- ANSI, IAC or IEC/BS142 curves include:
- moderately inverse
- normal inverse
- very inverse
- extremely inverse
- defined time
- (55) Power factor
- (59) Overvoltage
- (68) Exit lock
- (81) Underfrequency and overfrequency
- (86) Lock
- Accumulated KA per phase at switch interruption
Characteristics
- Primary CT ratio selectable in 5 A steps (5 to 6000 A)
- Touchpad programming
- 1 trip relay
- 3 auxiliary relays that can be associated with the different functions
- Loss of power or internal fault control relay
- 3 programmable digital inputs and 1 digital input for switch status
- Switch operation failure alarm on trip command
Signaling
- LED and LCD display indication
- Cause of last trip and relative data
- Indication and storage of fault condition and its values
- Switch status indication (open, closed, grounded)
- RMS line and ground currents
- RMS line or phase voltages
- Active power (kW), reactive power (kvar) and apparent power (kVA)
- Active energy (MWh) and reactive energy (Mvarh)
- Power factor and system frequency
- Positive and negative real power (kW) and reactive power (kvar)
- Demand and maximum demand: current in each phase (A), real power (kW), reactive power (kvar)
Communication
- Communication port: (1) RS232 and (2) RS485
- Remote programming of setpoints
- Protocol used: Modbus RTU
- Ethernet communication port (Modbus TCP/IP) – upon request
ORION ITALIA VIETNAM – Power Protection Relay SMPR-155 ORION ITALIA
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