GE T60 T6M-9HH Transformer Protection Relay GE Multilin
Manufacturer: GE Fanuc
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Part Number: T60 T6M-9HH
Condition：New with Original Package
Product Type: Protection Relays
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE T60 T6M-9HH Transformer Protection Relay
The GE Multilin T60 T6M-9HH is a numerical protection relay designed for the comprehensive protection, monitoring, and control of power transformers, autotransformers, and reactors in electrical substations and industrial power systems. It provides advanced protection functions including multi-zone differential protection, restricted ground fault, overcurrent, voltage, and frequency elements to ensure reliable power grid operation.
Protection Features and Differential Restraint
The relay features a dual-zone percentage differential protection scheme with pre-set differential restraint characteristics. The minimum pickup range is adjustable from 0.05 to 1.00 pu, while Slope 1 and Slope 2 ranges span 15 to 100% and 50 to 100% respectively. Kneepoint 1 is configurable from 1.0 to 4.0 pu, and Kneepoint 2 ranges from 4.0 to 30.0 pu to handle high external fault currents and CT saturation.
Harmonic Inhibit and Operate Times
To prevent maloperation during transformer energization and overexcitation, the unit incorporates configurable 2nd and 5th harmonic inhibit ranges from 1.0 to 40.0%. Operate times vary based on harmonic blocking selection, ranging between 20 to 30 ms when harmonic inhibits are selected, and dropping to 5 to 20 ms when no harmonic inhibits are selected. Level accuracy is maintained at within ±0.5% of reading or ±1% of rated value, with a dropout level of 97 to 98% of pickup.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | T60 |
| Brand | GE |
| Ordering Code / MPN | T6M-9HH |
| Product Type | Transformer Protection Relay |
| Primary Application | Power transformer protection and monitoring |
| Minimum Pickup | 0.05 to 1.00 pu |
| Slope 1 Range | 15 to 100% |
| Slope 2 Range | 50 to 100% |
| Kneepoint 1 | 1.0 to 4.0 pu |
| Kneepoint 2 | 4.0 to 30.0 pu |
| 2nd Harmonic Inhibit Range | 1.0 to 40.0% |
| 5th Harmonic Inhibit Range | 1.0 to 40.0% |
| Operate Time (Harmonic Inhibits Selected) | 20 to 30 ms |
| Operate Time (No Harmonic Inhibits Selected) | 5 to 20 ms |
| Dropout Level | 97 to 98% of pickup |
| Level Accuracy | ±0.5% of reading or ±1% of rated |
| Configuration Software | GE EnerVista UR Setup |
Frequently Asked Questions
Q: What is the primary function of the GE T60 T6M-9HH relay? A: It provides comprehensive numerical protection, monitoring, and control specifically tailored for power transformers, autotransformers, and reactors.
Q: How is the relay configured and managed? A: Configuration, setting adjustments, and fault analysis are performed using the GE EnerVista UR Setup software platform.