# Protection, Control & Automation

> Protection IEDs and IEC 61850 automation for transformers and switchgear.

> Solutions combining transformer differential, feeder protection, breaker control, interlocking and digital-substation communications.

> Parent hierarchy: [Power & Energy Equipment](https://voltformer.com/catalog.md) / Protection, Control & Automation

**Canonical:** https://voltformer.com/category/protection-control-and-automation - markdown: https://voltformer.com/category/protection-control-and-automation.md

## Subcategories

- [Transformer Differential Protection IEDs](https://voltformer.com/category/protection-control-and-automation/transformer-protection-relays.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - See selected product ratings, See selected product ratings
- [Feeder Protection and Control IEDs](https://voltformer.com/category/protection-control-and-automation/feeder-protection-and-control.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - OG/YG fider uygulamaları, See selected product ratings
- [Digital Substation and Bay Automation](https://voltformer.com/category/protection-control-and-automation/digital-substation-automation.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - See selected product ratings, See selected product ratings

## Sample Products

- [hitachi-ret670 - Hitachi Energy Relion RET670](https://voltformer.com/product/hitachi-energy-relion-ret670.md)
- [abb-ret615 - ABB Relion RET615](https://voltformer.com/product/abb-relion-ret615.md)
- [siemens-7ut85 - Siemens SIPROTEC 7UT85](https://voltformer.com/product/siemens-siprotec-7ut85.md)
- [siemens-7ut86 - Siemens SIPROTEC 7UT86](https://voltformer.com/product/siemens-siprotec-7ut86.md)
- [sel-487e - SEL-487E Transformer Protection Relay](https://voltformer.com/product/sel-487e-transformer-protection-relay.md)
- [sel-787 - SEL-787 Transformer Protection Relay](https://voltformer.com/product/sel-787-transformer-protection-relay.md)
- [ge-multilin-845 - GE Vernova Multilin 845](https://voltformer.com/product/ge-vernova-multilin-845.md)
- [ge-micom-p643 - GE Vernova MiCOM Agile P643](https://voltformer.com/product/ge-vernova-micom-agile-p643.md)

## Technical specialization coverage

- **Two-/Three-Winding Transformer Protection** (Transformer Differential Protection IEDs): Engineered on request - This taxonomy specialization is covered by the dedicated protection/control catalogue. Select the exact IED and verify winding count, CT inputs, algorithms and settings from the OEM manual.
- **MV Feeder Protection and Bay Control** (Feeder Protection and Control IEDs): Engineered on request - This taxonomy specialization is covered by the dedicated protection/control catalogue. Select the exact feeder IED and verify CT/VT inputs, functions, IEC 61850 options and settings.
- **IEC 61850 Digital Substation** (Digital Substation and Bay Automation): Engineered on request - This taxonomy specialization is covered by the dedicated protection/control catalogue. Select the exact bay controller/IED and verify edition, GOOSE/SV, redundancy and engineering-tool compatibility.

## Official sources

- https://webstore.iec.ch/en/publication/6028

- **Last reviewed:** 2026-09-13

## Typical Industries

- Project-specific application
- Project-specific application
- Industrial Manufacturing Plants
- GES, RES & BESS
- Data Centers