Ultra Series
Ultra Series is a set of relays with advanced protections and features for transformer and feeder applications.
This platform can handle a multi-protocol, serial or Ethernet communication for data sharing with supervision systems.
All models can support a AND/OR programmable logic based on inputs and events to control the relay outputs.
A dedicated set of protection relay models are suitable for DC application in substations.
- Configuration via PC tool
- Digital technology
- Touch screen interface
- Programmable logic
- Multi-functions AC and DC relays
- Dedicated to transformer and feeder applications
- Multi-protocol serial and Ethernet communication
- Application flexibility
- Withdrawable design
- Special version for DC substations
- Event and trip logs
- Fault recordings
| 3 | Checking or Interlocking relay | |||||||||
| 7(di/dt) | Current Rate of Change | |||||||||
| 21 | Distance Relay | |||||||||
| 27 | Undervoltage Relay | |||||||||
| 27V1 | Positive Sequence Undervoltage (47u+) | |||||||||
| 37 | Undercurrent Relay | |||||||||
| 46 | Current Unbalance | |||||||||
| 47 | Phase Sequence | |||||||||
| 49(i2t) | Thermal Overload | |||||||||
| 50/51 | Overcurrent Relay | |||||||||
| 50/51BF | Breaker Failure | |||||||||
| 50N/51N | Neutral Instantaneous Overcurrent | |||||||||
| 51LR | AC inverse time overcurrent (locked rotor) protection relay |
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| 51V | Voltage Restrained Time Overcurrent | |||||||||
| 59 | Overvoltage Relay | |||||||||
| 59Uo | Overvoltage Zero sequence | |||||||||
| 59V2 | Negative Sequence Overvoltage (47o-) | |||||||||
| 64 | Ground Protective Relay | |||||||||
| 66 | Notching or Jogging Device Maximum Starting Rate Starts Per Hour Time Between Starts |
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| 67 | AC Directional Overcurrent Relay | |||||||||
| 67N | Neutral Directional Overcurrent | |||||||||
| 69 | CB-L (Lock C/B reclosure) | |||||||||
| 73 (single line) | Automatic Line Test - Single line | |||||||||
| 73 (double line) | Automatic Line Test - Double line | |||||||||
| 74 | Trip coil supervision | |||||||||
| 76 | DC Overcurrent Relay | |||||||||
| 77 | Telemetering / Pulse Transmitter | |||||||||
| 79 | AC Reclosing Relay / Auto Reclose | |||||||||
| 81(U/O) | Frequency Relay | |||||||||
| 82 | DC Reclosing Relay / Auto Reclose | |||||||||
| 85/94 | Remote Trip | |||||||||
| 86 | Lock Out Relay, Master Trip Relay | |||||||||
| 87N | Differential Protective Relay | |||||||||
| 87T | Transformer Differential |
Protection Relays
Circuit Breakers
Switches and Disconnectors
Fans
Resistors