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Electro-Process
and High Power Conversion
Measurement, Control & Protection |
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Applications : Chlor - Alkali
Passing electrical current through a sodium chloride and water solution releases chlorine gas. Three different types of process reaction vessels or cells are used: Mercury, Diaphragm, and Membrane. Electrical power costs range from 35% to 70% of the total cost of producing chlorine. Accurate electrical monitoring of chlorine processes improve process performance, cost visibility, environmental compliance, and safety.
Process Applications
Mercury and Diaphragm processes in particular utilize a number of rectifiers in parallel to obtain the required current levels. In order to obtain the electrical information needed for effective process control, a single measurement of total process current is ideal.
High accuracy measurement of current and voltage are needed to…
Provide current data to process systems for optimum control performance
Detect unexpected changes in process efficiency
Accurately evaluate impact of intended / trial process changes
Objectively compare multiple process lines and smelters
Accurate multi-point measurement of current and voltage are needed to…
Control anode position in mercury cells for cost efficiency, safety and environmental compliance
Monitor voltage drops in membrane cells for efficiency, condition and safety purposes | |  |
Links to applicable DynAmp product pages :
| LKCO | New high accuracy total process current measurement utilizing fiber optic sensing technology |
| LKP | for high accuracy total process current measurement |
| Upgrades | to improve performance of existing LKP, CM, FM & CXM systems |
| AMACS | anode monitoring and control for mercury cell processes |
| VDAS | voltage monitoring for membrane process health and safety |
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 | Power Conversion Applications
Chlor-Alkali processes operate at their most efficient when the electrical supply is both stable and reliable. Current instability leads to numerous process efficiency problems thereby increasing costs. Such instability can cause process cell damage and even endanger staff and facility.
Highly dependable and responsive measurement systems are needed to
Provide current data to rectifier control for optimum performance and stability
Provide overall multi-rectifier balance indication
Provide a backup ‘totalized’ current measurement signal for mainline current
Sense power conversion equipment failures to protect process, equipment, staff
Analyze rectifiers condition to determine condition & maintenance requirements
Links to applicable DynAmp product pages :
| LKP | for high accuracy rectifier output measurement, control and balance |
| Upgrades | to improve performance of existing LKP, CM, FM & CXM systems |
| LKAT | for rectifier output measurement, control, balance with over/reverse current protection |
| BCMR | to protect rectifiers from over/reverse current events |
| BRP | New basic reverse current protection for rectifiers |
| RCEM | for internal rectifier analysis and condition monitoring |
| Clamp-On | for portable measurement |
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DynAmp, LLC
3735 Gantz Road
Grove City, OH, 43123, USA
Phone: (+1) 614-871-6900
Fax: (+1) 614-871-6910
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DynAmp Europe
Chemin des Aulx 8,
1228 Plan-les-Ouates, Geneva, Switzerland
Phone: (+41) 22 706 1446
Fax: (+41) 22 706 1311 |
Copyright © 2009 DynAmp, LLC
All Rights Reserved
help@dynamp.com
( formerly Halmar and LEM DynAmp )
To visit LEM Group, click here 
Updated: 1 September 2009 |
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