BTH 2×50 Automatic Cathodic Protection Rectifier
BTH 2×50 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 necessary protective components and functions to protect itself under extreme conditions such as overcurrent and overheat or surges coming from any cable connection.
BTH 2×50 has a unique future of being able work with 2 or 3 phase of supply. This feature makes it possible to operate under unstable mains conditions.
BTH 2×50 has a high efficiency insulating step down transformer with an efficiency of greater than %95 and is designed to witstand an overload condition of %125 contiuously.
BTH 2×50 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 %90 The System is able to diagnose and report critical conditions such as Anode, Cathode or Reference electrode cable brakes and also logs the error codes which can be analysed over MODBUS connection.
Multiple units can be synchronized through GPS satellites (optional) which makes it possible to conduct pipeline diagnostic works without using expensive external interrupters.
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Technical Specifications
| 230V | 400V | |
| Input Voltage | 230V 50 Hz (±%20) | 400V 50/60 Hz (±%10), 2 Ph/3 Ph |
| Input Current | 18A | 2 Ph 10A, 3 Ph 5,5A |
| Output Voltage | 0 – 50V DC (±0,25V) | |
| Output Current | 0 – 50A DC (±0,25A) | |
| Output Fuse | 63A Semiconductor Fuse | |
| Short Circuit Protection | Electronic | |
| Thermal Protection | 90°C ± 5°C (Heat Sink Temperature) | |
| Efficiency | >%85 | |
| Operating Temperature Range | -30, +60°C | |
| Output Voltage Meter | 0 – 81,92V DC (±%1 +0.25V) | |
| Output Current Meter | 0 – 61,44A DC (±%1 +0.25A) | |
| Pipe to Soil Voltmeter | ±10V DC (±%1 +20mV) | |
| IP Protection | IP54 | |
| Dimensions | 1190 x 750 x 530 mm | 1180 x 750 x 532 mm |
| Power Control Method | High Frequency DC-DC Converter with MOSFET switch | |
| High Voltage Protection | Protection over all inputs and outputs | |
| Operating Modes | • Automatic, Continuous • 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 13V | |
| SCADA Output 1 | RS485-MODBUS RTU (Standard) | |
| SCADA Output 2 (Optional) | 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 | ||
| 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.