Differential relays

Product catalog summary

Overview: The document provides detailed specifications and ordering information for various Delta differential relays and toroids. It includes models such as Delta D2, D4, 48, 72, and 96, along with their respective housing dimensions and features.

Specifications:

Delta D2 and D4 Models: These models are available in 2 and 4 module housings, respectively. They feature 1 or 2 alarms, 19 current ranges (0.03 to 30A), selectable intervention times, and manual or automatic reset options. They support both AC and DC auxiliary supplies.
Delta 48, 72, and 96 Models: These models are designed for flush mounting with dimensions of 48x48mm, 72x72mm, and 96x96mm. They offer similar features to the D2 and D4 models, with additional options for LED displays and multiple relay outputs.
Toroids: The document describes open-core (Del A) and closed-core (Del) toroids for differential relays, specifying their diameters and lowest current detection capabilities.

Procedures:

Wiring Connections: Detailed wiring diagrams are provided for connecting the relays to transformers and auxiliary supplies, ensuring proper installation and operation.

Ordering Information:

Each model has specific ordering codes based on auxiliary supply requirements and relay configurations. Stock availability is indicated for each configuration.

Technical Notes: Each model and toroid type is associated with a technical note number, providing additional technical details and installation guidelines.

Recommendations:

Choose the appropriate model based on the required housing size, alarm configuration, and auxiliary supply type.
Ensure compatibility with existing systems by referring to the wiring connections and technical notes.

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Product guide
274 Pages