Selective Current Generator Delta SELECTRONIK-5, model SELECTRONIK-5

The Delta SELECTRONIK-5 selective current generator is a portable electrical test instrument engineered to produce controlled selective currents for diagnostics, testing and calibration of protection relays and electrical installations. It supplies a stable current source that enables verification of relay pickup characteristics, simulation of fault conditions and evaluation of circuit behavior without modifying existing wiring. The unit is suitable for both field and workshop environments and supports systematic testing workflows for power distribution, protection and maintenance teams.

Advantages

The device delivers accurate and repeatable current outputs with adjustable amplitude to match a range of protection settings. Its design emphasizes portability, ease of connection and safe operation during live testing scenarios. Built for robust use, the generator reduces the need for complex temporary wiring by providing a controlled current reference for relay calibration and fault simulation. Integration into standard testing procedures helps minimize downtime and supports consistent documentation of test results.

Suitable for

• Verification of protection relay pickup and timing characteristics
• Simulation of fault currents for fault localization and commissioning
• Calibration and functional testing of current transformers and protection systems
• Field diagnostics and workshop testing of distribution panels and switchgear

Key specifications

• Function: selective current generation for testing and calibration
• Output: adjustable current amplitude suitable for relay testing
• Portability: compact and designed for field and workshop use
• Connection: terminals and interfaces for straightforward integration with protection circuits
• Safety: features for safe operation during live-system tests
• Durability: engineered for repeated use in maintenance and commissioning environments

How to use

Connect the generator to the protection relay or circuit under test following standard safety procedures and the manufacturer’s connection guidelines. Set the desired current amplitude and waveform parameters if applicable, then initiate the output to simulate operating or fault conditions while monitoring the relay response. Document pickup values and timing to compare with protection settings. Always de-energize or isolate auxiliary circuits as required and verify connections before applying test currents.

Usage recommendations

Use the Delta SELECTRONIK-5 with appropriate personal protective equipment and adhere to institutional safety procedures. Calibrate or verify the generator output against a known reference periodically and keep connection points and terminals clean and secure to ensure reliable measurements.