One Relay Test Platform. Four Configurations.

The Quasar range has been designed for protection engineers, utilities, electrical maintenance
companies, commissioning teams, relay manufacturers, EPC contractors and industrial facilities
with their own substations, including mission-critical environments such as Data Centers, Ships or Generation Power Plants.

The main idea behind the expanded Quasar family is simple:
choose the relay test set that fits your testing needs today and upgrade it when your requirements grow.

From current-only testing to full voltage and current capability, Quasar provides a scalable
platform for relay test, secondary injection, IEC 61850 and GOOSE-based protection testing.

What Is the Quasar Range?

The EuroSMC Quasar range is a modular family of relay test sets for testing protection relays
and protection schemes in substations, industrial electrical networks and critical power
infrastructure. It supports conventional secondary injection testing as well as digital substation
applications involving IEC 61850 and GOOSE.

All configurations share the same platform philosophy: portable, robust, connected, easy to use
and upgradeable.

Quasar: Full Current and Voltage Capability for Advanced Relay Testing

Quasar is the complete model in the range. It is designed for users who need full
current and voltage capability from the first day.

• 3 dedicated current outputs
• 4 voltage outputs up to 300 V
• Voltage outputs convertible into current mode
• Configuration possible with up to 7 current outputs
• IEC 61850 and GOOSE capability
• Wi-Fi, Ethernet, dedicated IEC 61850 port and expansion port
• 6 binary inputs and 4 binary outputs
• Low-level outputs for sensors, meters or channel expansion

Quasar is the recommended configuration for utilities, advanced commissioning teams, relay
manufacturers, service companies and heavy industries that require complete testing capability
in one relay test set.

Quasar-V: Voltage Outputs or Current Outputs up to 5 A

Quasar-V is the flexible configuration of the platform. It is designed for users who
need voltage outputs or current outputs up to 5 A, depending on the test scenario.

• 4 outputs up to 300 V
• Outputs can be used as voltage channels or converted into current mode
• Possible configurations: 4 × 300 V, 4 × 5 A or 3 × 5 A + 1 × 300 Vdc
• IEC 61850 and GOOSE capability
• Same platform, software and connectivity as Quasar
• Upgradeable to full Quasar capability by adding the plug-and-play dedicated current module

Quasar-V is ideal for customers who require flexibility between voltage testing and current
testing up to 5 A, but do not initially need the dedicated high-power current amplifiers of the
full Quasar configuration.

Quasar-C+: Full Current Capability with One Flexible Voltage Channel

Quasar-C+ is the current-focused configuration with one highly flexible auxiliary
output. It includes the same 3 dedicated current outputs as Quasar and adds one configurable
V4 output.

• 3 dedicated current outputs
• 1 configurable V4 output
• V4 can operate as 1 × 300 Vac
• V4 can operate as 1 × 5 A
• V4 can operate as 1 × 300 Vac/dc
• V4 can operate as a 48, 125 or 250 Vdc battery simulator
• IEC 61850 and GOOSE capability
• Upgradeable to Quasar by replacing the single-voltage module with the standard 4-voltage-output module

Quasar-C+ is particularly suitable for current-based protection relay testing where an auxiliary
voltage, DC output, additional current output or battery simulation is required.

Quasar-C: Full Quasar Current Capability in a Current-Only Configuration

Quasar-C is the current-only version of the Quasar platform. It is designed for
users whose main requirement is current injection.

• 3 dedicated current outputs
• No voltage outputs included as standard
• Designed for current-focused relay testing
• IEC 61850 and GOOSE capability
• Same platform, software and connectivity as Quasar
• Upgradeable to Quasar-C+ by adding the V4 configurable output module
• Upgradeable to Quasar by adding the standard 4-voltage-output module

Quasar-C is a powerful entry configuration for protection engineers and electrical maintenance
teams who need full current capability today and want the option to add voltage outputs in the future.

Why This Matters for Data Centers and Critical Power Infrastructure

Data Centers depend on highly reliable electrical protection systems. Protection relays must be
tested accurately during commissioning, maintenance and periodic verification to help ensure
continuity of power supply and reduce the risk of unexpected downtime.

The expanded Quasar relay test set range gives Data Center operators, electrical contractors and
maintenance teams a scalable platform for protection relay testing, secondary injection and
IEC 61850 applications. This makes Quasar suitable for both conventional substations and modern
digital protection environments.

Quick Comparison: Which Quasar Relay Test Set Fits Your Needs?

Designed for Modern Relay Test Applications

The Quasar range supports a wide range of applications related to protection relay testing and
secondary injection, including:

• Three-phase relay testing
• Protection relay commissioning
• Substation maintenance
• IEC 61850 testing
• GOOSE message testing
• Current and voltage injection
• Data Center electrical protection testing
• Industrial power system protection testing
• Relay manufacturer testing and validation
• Electrical service company field testing

Conclusion: A Scalable Relay Test Set Platform for Today and Tomorrow

With the addition of Quasar-C, Quasar-C+ and
Quasar-V, EuroSMC expands the Quasar platform into a complete modular
relay test set range.

Whether your priority is full voltage and current capability, flexible voltage/current outputs,
current-focused testing or current-only applications, the Quasar range allows you to choose
the configuration that fits your needs today and upgrade it as your protection testing
requirements evolve.

Discover the Quasar Relay Test Set Range