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ZX Digital

Simplicity meets flexibility

ABB Ability™ GIS for MV - ZX is a digital concept for medium-voltage switchgear. ZX Digital is an enhancement of the existing ZX gas-insulated switchgear portfolio for primary applications. The new gas-insulated digital family is enriching the existing ABB digital switchgears portfolio for medium voltage, which offer the air-insulated digital switchgears, namely UniGear Digital.

The ZX Digital concept relies on three main pillars: Well-proven ZX switchgear (up to 40.5kV, up to 3150A, up to 40kA), state-of-the art sensor technology for current and voltage measurement and advanced communication technology according to IEC 61850.

Just one communication bus system, which carries interlocking information as well as sampled measured values of voltage signals replaces complex wiring schemes of conventional switchgears. Thanks to continuous supervision of communication on the redundant bus system, ZX Digital offers superior reliability in comparison to a conventional switchgear.

Product scope

  • ZX0.2 Digital gas-insulated switchgear for primary applications up to 36kV, 2500A and 31.5kA, IEC standard
  • ZX2 Digital gas-insulated switchgear for primary applications up to 40.5kV, 3150A and 40kA, IEC standard

Key benefits
  • Simplified planning of switchgear projects
  • Shortened delivery time by up to three weeks
  • Increased flexibility towards changes in projects
  • Increased safety during operation, commissioning and operation thanks to sensor technology
  • Lower energy consumption by up to 250 MWH representing savings of up to 42,500 EUR1

Key features
  • Interlockings via GOOSE (Generic Object Oriented Substation Events) according to IEC 61850-8-1
  • Sharing of SMV (Sampled Measured Values) via process bus according to IEC 61850-9-2
  • Supervised and redudant communication
  • Current measurement via rogowski coil
  • Voltage measurement via resistive divider
  • Compact design

Compared to a conventional ZX line up with 14 panels over 30 years and an energy price of 0,17 EUR per kWh

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