Basler Electric SSR 63-12 – Solid‑State Static Voltage Regulator (9 1859 00 101)

The Basler Electric SSR 63-12 (part number 9 1859 00 101, configuration 46534AB) is a high‑performance static voltage regulator designed to provide reliable excitation control for synchronous generators. With a continuous output current rating of 12 A, this regulator is well‑suited for medium‑sized alternators in industrial plants, marine installations, and standby power systems.

Regulation and Control

The SSR 63-12 uses a thyristor‑based power stage with fast‑response gate drive, enabling precise control of the field current. It features an adjustable voltage setpoint (90–110% of nominal), stability compensation to match generator dynamics, and droop control for parallel operation. Under‑frequency roll‑off protects the generator from overvoltage during overspeed conditions, while over‑excitation limiting prevents field winding overheating.

• Input sensing: 120/240 V AC, 50/60 Hz

• Output current: 12 A continuous (15 A surge)

• Output voltage: up to 150 V DC

• Regulation accuracy: ±0.5% of setpoint

• Voltage adjustment range: ±10%

• Droop adjustment: 0–5% for paralleling

• Under‑frequency roll‑off: adjustable 45–60 Hz

• Protections: over‑excitation limiting, loss of sensing, short circuit

• LED indicators: power, regulation, and fault

• Mounting: panel or chassis with heat sink

• Operating temperature: –20 °C to +60 °C

Typical Applications

This regulator is ideal for generator sets rated from 100 kVA to 800 kVA, commonly used in data centres, hospitals, manufacturing, and marine vessels. Its robust construction and proven reliability make it a trusted choice for critical power applications.

Installation and Configuration

Mounting is via pre‑drilled holes, and all connections are made through clearly labelled terminal blocks. Front‑panel trimpots allow rapid field tuning. The regulator supports remote voltage adjustment via an external potentiometer, providing operational flexibility.

Durability and Compliance

Built with industrial‑grade components and conformal‑coated circuit boards, the SSR 63-12 withstands high humidity, vibration, and temperature extremes. It complies with IEEE C37.90 and IEC 60255 standards, ensuring dependable operation over its extended service life.

In summary, the Basler Electric SSR 63‑12 static voltage regulator delivers accurate, robust excitation control, making it a reliable foundation for generator voltage regulation.