GE Multilin | 745-W2-WP5-G5-HI | Transformer Management Relay
The GE 745-W2-WP5-G5-HI — a transformer management relay you will wish you had on the shelf when the old one fails. Frequency: 50 or 60 Hz nominal | Options: LO/HI (specified when ordering) | LO Range: 20 to 60 V DC; 20 to 48 V AC at 48 to 62 Hz. Physical stock, not virtual inventory. Ships within 24 hours.
Technical Specifications
| 745 Transformer Protection System | is a high speed, multi-processor based, threephase, two or three winding, transformer management relay intended for the primary protection and management of small, medium and large power transformers. |
|---|---|
| Transformers | Two-winding or three-winding |
| Frequency | 50 or 60 Hz nominal |
| Options | LO/HI (specified when ordering) |
| LO Range | 20 to 60 V DC; 20 to 48 V AC at 48 to 62 Hz |
| HI Range | 90 to 300 V DC; 70 to 265 V AC at 48 to 62 Hz |
| Power | 30 VA nominal, 40 VA maximum |
| Total loss of voltage ride-through time (0% control power) | 16.7 ms |
| Fuse Current Rating | 3.15A (fuse not accessible) |
| Fuse Type | 5 × 20 mm slow-blow Littelfuse, high breaking capacity; model 2153.15 |
| Source CT | 1 to 50000 A primary, 1 or 5 A secondary |
| Relay Input | 60 to 120 V phase-neutral |
| Burden | Less than 0.025 VA at 120 V |
| Conversion Range | 0.02 to 46 × CT |
| Overload Withstand | 1 second at 80 times rated current; 2 seconds at 40 times rated current; continuous at 3 times rated current |
| Source VT | 2 to 600 kV / 60 to 120 V |
| Source VT Ratio | 1 to 5000 in steps of 1 |
| Maximum Continuous Input | 273 V |
| Maximum Accuracy Input | 260 V (full-scale) |
| Manufacturer | GE |
| Model / SKU | 745-W2-WP5-G5-HI |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
Why the GE 745-W2-WP5-G5-HI Matters for Your Operation
In mining, every component in your control system has a specific job — and when one fails, the ripple effects can shut down an entire production line. The GE 745-W2-WP5-G5-HI is a transformer management relay that keeps your conveyor control and grinding mill drives running without interruption.
Here is what this module actually does. transformers: Two-winding or three-winding; frequency: 50 or 60 Hz nominal; options: LO/HI (specified when ordering); lo range: 20 to 60 V DC; 20 to 48 V AC at 48 to 62 Hz. These are not generic specifications — they determine whether this module will work in your specific GE system. We have seen too many cases where a maintenance team ordered a replacement only to find it was the wrong revision or configuration. That is why we test every 745-W2-WP5-G5-HI on a live GE rack before shipping — full signal injection across every channel, not just a visual check.
Installation matters too. The most common cause of DOA reports is not a defective module — it is bent backplane pins from forcing a module in at the wrong angle. Take your time lining up the guides. Apply even pressure. If it does not slide in smoothly, stop and check the alignment. Always wear a grounded wrist strap — static discharge from removing a fleece jacket in a dry mine site can exceed 15,000 volts, destroying sensitive input protection diodes instantly.
Think about your sparing strategy. A single GE 745-W2-WP5-G5-HI costs a fraction of what one hour of unplanned downtime costs in mining. We ship replacements within 24 hours from Shenzhen — but even 24 hours is too long if you are losing production. For critical applications, keep one cold spare on your shelf.
Compatible Parts — Same System
These modules share the same system family as the 745-W2-WP5-G5-HI. Commonly ordered together for complete rack builds or spare parts kits.
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