TRANSFORMER RECTIFIER MOD. LSW 12 AMPERE

CATHODIC POWER SUPPLY TYPE LS SWT 12 AMPERE

TECHNICAL SPECIFICATIONS

Switch-mode stabilized cathodic power supply with energy saving up to 150 W/h calculated on the maximum delivered current and voltage. Suitable for installation in any roadside cabinet.

Operation modes:

• Automatic constant current
• Automatic constant potential
• Automatic constant potential with base current

Electrical characteristics:

• Allowed supply voltage: 230 V ±15%; 50 Hz ±2% single-phase
• Maximum output voltage: 48 V
• Maximum deliverable current: 12 A
• Full-load efficiency: ≥ 85%

Construction: anodized aluminum frame, lightweight and highly resistant to oxidation. Front and connection panels in vetronite.

Fully electronic switch-mode control with continuous adjustment via multi-turn potentiometers with graduated index knob of the following parameters:

• Maximum delivered current: from 1.5 A to maximum value
• Maximum base current: 10 A
• Tube-to-soil protection potential: from 0 to –5 V
• Current regulation in pause-work mode

All parameters are adjustable via multi-turn potentiometers with graduated knob.

Operation mode: constant current or automatic.

Measurement instruments and devices:

• Digital voltmeter for output voltage measurement (Vu)
• Digital voltmeter for pipe-to-soil potential measurement (Vddp)
• Digital ammeter for output current measurement (Iu)

Adjustments:

• Output current (Iu)
• Pipe-to-reference electrode potential (Vddp)
• Base current (Ib)
• Constant current with faulty regulation board

Protections against overcurrents on circuits:

• AC input to the power supply: via magnetic-thermal circuit breaker
• DC output from the power supply: via fuse and series diode
• Input to rectifier bridge: via fuse

Protection against overvoltages on DC side input (Anode – Structure): via internal surge arrester

Protection against overvoltages on cathodic potential measurement side input (Structure – Reference Electrode): via internal surge arrester

Protection against radio interference emission (filters)

Protection against output polarity reversal

VERSION LS SWT – FOR ANY CABINET

• Weight: 7 kg
• Max width: 400 mm
• Max height: 300 mm
• Max depth: 300 mm