Basler Electric 9170818100 Solid State Protective Relay

The Basler Electric 9170818100 is a solid‑state protective relay designed for use in power distribution, generator, and transformer protection schemes. It provides reliable detection of abnormal conditions such as overcurrent, overvoltage, or frequency deviations, and trips or alarms to isolate faults. The relay is built with high‑quality components and offers adjustable setpoints and time delays for coordination with other protection devices.

Functional Capabilities

Depending on the specific application, this relay can be configured for overcurrent (ANSI 50/51), overvoltage (ANSI 59), or under/overfrequency protection. It features a microprocessor‑based or analog solid‑state design with high accuracy and stability. Front‑panel controls allow adjustment of pickup levels and time delays. The relay includes a target indicator for trip identification and a reset pushbutton.

Technical Specifications

Input ranges: voltage 100‑480 VAC, current 1 A or 5 A secondary (CT). Frequency: 50/60 Hz. Pickup accuracy: ±2% of setting. Time delay: adjustable 0.05‑10 seconds. Output contacts: 2 Form C, rated 5 A at 250 VAC. Power supply: 24‑250 VDC or 120‑240 VAC. Operating temperature: –30°C to +65°C. Enclosure: metal, panel‑mount.

Protection Features

The relay includes self‑supervision with a watchdog timer, which monitors internal power supply and sensing circuits. A failure alarm output is provided. It also features surge suppression and transient immunity per IEEE C37.90.

Applications

This relay is used in utility substations, industrial plants, and marine power systems for feeder protection, motor protection, and generator backup protection. It can be retrofitted into existing panels as a replacement for older electromechanical relays.

Installation and Commissioning

Mount the relay in a standard cutout. Connect sensing inputs and control power. Commissioning involves setting the protection parameters and performing secondary injection tests to verify operation. The relay includes a test jack for signal injection.

Reliability and Quality

Basler Electric’s 9170818100 relay is manufactured under strict quality control and tested for environmental endurance. It has a proven track record in critical applications. Periodic calibration is recommended.

Conclusion

The Basler Electric 9170818100 solid‑state protective relay offers dependable, accurate protection for a variety of power system applications. Its robust design and flexible settings make it a valuable component in any protection scheme.