M-PRO
F-PRO
TESLA
ERMLG
S-PRO
T-PRO
B-PRO
L-PRO
T-PRO
Transformer Protection Relays
T-PRO 4000 Transformer
Protection Relay
T-PRO 4500 Transformer
Protection Relay
T-PRO 2000 Transformer
Protection Relay
The IEC 61850 station bus embedded T-PRO relay provides complete 3-phase multi-winding transformer fault and overload protection, DFR-quality fault oscillography, sequence of event logging, trend recording, in a fully integrated protective relay solution, with advanced communications in a flexible cost-effective package.
The T-PRO comes in two models with different builds to suit specific market requirements. Model 4000 is a 3U or 4U 19 inch rack model whereas model 4500 is in an E12 case size and has dual rated 1A and 5A CT inputs. Model 4500 also has optional PRP redundancy communications. The user software is common to the two models.
Key Features & Capabilities
Transformer differential protection with CT saturation detection and security features
Pioneering loss-of-life monitoring — tracks transformer aging in real time
Overexcitation (V/Hz) protection to prevent core saturation damage
Overcurrent and earth fault backup protection
14 programmable output relay contacts, each with breaker tripping capability
IRIG-B time synchronization for accurate event timestamping
IEC 61850 and Modbus/DNP3 SCADA communication support
DFR-quality fault oscillography and dynamic swing recording
Applications
High speed protection and complete control of multi-winding transformers with HV and LV windings connected to all bus types such as ring bus or breaker-and-half arrangements
Primary and backup protection of small, medium and large power transformers and reactors (including differential, ground differential, phase, neutral and ground overcurrent, phase under voltage, neutral overvoltage, under- and over-frequency, and over excitation)
IDEAL FOR Power utilities, transmission operators, and industrial facilities that depend on high-value transformers and want both reliable protection and real-time transformer health monitoring to extend asset life.