BTH-50V20A Automatic Cathodic Protection Rectifier
BTH-50V20A is a DSP controlled, fully programmable, high efficiency cathodic protection rectifier designed to keep up with the severe conditions faced in harsh working environment, equipped with all the nesceesary protective components and functions to protect itself under extreme conditions such as overcurrent and overheat or surges coming from any cable connection.
BTH-50V20A has a high efficiency insulating step down transformer with an efficiency of greater than %90 and is designed to witstand an overload condition of %125 continuously.
BTH-50V20A Power Module consists of a Low output ripple High efficiency step down DC to DC converter operating at 50 KHz. High switching frequency allows fast output control and line voltage compensation. Utilisation of a DC to DC converter provides an overal efficiency of greater than %85.
The System is able to diagnose and report critical conditions such as Anode, Cathode or Referance electrode cable brakes and also logs the error codes with time stamp for future analyses (-420 model).
It’s unique feature of being able to synchronize multiple rectifiers through GPS satellites (optional) makes it possible to conduct pipeline diagnostic works without using expensive external interrupters.
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TEKNİK ÖZELLİKLER
| Input Voltage | 230V 50/60 Hz (±%20) |
| Output Voltage | 0.25 – 50V DC |
| Output Current | 0 – 20A DC |
| Output Fuse | 32A Semiconductor Fuse |
| Short Circuit Protection | Electronic |
| Thermal Protection | 90°C ± 5°C (Heat Sink Temperature) |
| Efficiency | >%90 |
| Operating Temperature Range | -30, +60°C |
| Output Voltage Meter | 0-81.92V DC( ±%1 +0.25V) |
| Output Current Meter | 0-25.5A DC (±%1 +0.1A) |
| Pipe to Soil Voltmeter | ±10V DC (±%1 +20mV) |
| IP Protection | IP54 |
| Dimensions | 820 x 990 x 520 mm |
| Power Control Method | High Frequency DC-DC Converter with MOSFET switch |
| High Voltage Protection | Protection over all inputs and outputs |
| Operating Modes | • Automatic, Adjustable Voltage Limit • Automatic, Adjustable Current limit • Manual, Constant Current, Interrupted • Manual, Constant Current, Continuous • Manual, Constant Voltage, Interrupted • Manual, Constant Voltage, Continuous |
| Interrupted Mode of Operation | |
| On Time Adjustment Range | 0.1 – 99.9s (0.1 sec resolution) |
| Off Time Adjustment Range | 0.1 – 99.9s (0.1 sec resolution) |
| Reference Electrode | 1 true differential isolated input |
| İnput Voltage Range | ±10V DC (±%1 +20mV) |
| Filtering | 50-60Hz Notch Filter allows unaffected DC measurements with superimposed AC voltages up to 18V |
| SCADA Output 1 | RS485-MODBUS RTU(YYY=MB) |
| SCADA Output 2 | 3 Channels 4-20mA Self Powered • Anode – Cathode Current • Anode – Cathode Voltage • Reference Electrode Voltage |
| Contact Outputs | 4 Pcs Dry Contact Outputs |
| • Automatic / Manual Operation • Interrupted / Continuous Operation • Faulty / Healthy • Power On / Off |
|
| Statistical Datalog | Modbus Readable Last 30 Error Records |
| Warranty | 2 years (componensts and workmanship) |
| Parts and Service Warranty | 10 Years |
All measurement devices are integrated with user interface in system. All measurements can be seen on LCD display.