Intelligent Solutions for a Better Life
Kerman Tablo’s product portfolio consists of different hardware and software, designed and manufactured, by highly qualified experts and engineers, with outstanding quality to meet customers’ requirements. These products are manufactured under supervision of four different Strategic Business Units (SBU) which are active in four major area of electrical and electronics engineering.
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DCS Hardware
List of DCS Hardware by KTC
Redundancy Communication Modules: KT-REDUNDANCY is a communication module which is used in CPU-rack for sending/receiving data and status between CPUs.
Analog Signal Input HART Module: KT-AIH16 is 16 channels, Analog Input Card. All channels can be individually used as current input and they all support HART protocol with windows-based configurator software.
Digital Signal Input Module: KT-DI32 is a 32-channel Digital Input Card. Each channel can be individually used as Input to receive indication and display actual states of all input lines on the front panel LEDand support time-tag.
Analog Signal Input Module: KT-AI16 consists of 16 channels, Analog Input Card. All channels can be individually used as current or voltage input by specifying what configuration is needed, it can also be calibrated by windows application software.
Analog Signal Output Module: KT-AO16 is a 16-channel Analog Output Card; each channel can be individually configured to work in output current or output voltage mode. Therefore one of these seven modes can be used for specifying what configuration is needed and should be selected.
Resistance Temperature Detector Module: KT-RTD16 is a 16-channel Resistance Temperature Detector Card.This card detects 16 channels RTD in 3-wire mode by injecting 0.5 mA current to RTD lines and can be calibrated by windowsapplication software in 2 ranges.
Digital Signal Output Module: KT-DO32 is a 32-channel Digital Output Card. Each output channel also grants the benefit of read-back through the circuitry which provides a high level of integrity check during issuing output commands. It also supports open loaded detection.
BAS
Energy is considered to be one of the major elements of development, and can act as an indicator to assess the rate of growth and economic development. International forecasts show that global energy demand is increasing with a consistent momentum and in the next 20 years, global energy consumption will rise by more than %50. Therefore, the emerging theory of intelligent buildings and the necessity to control energy consumption in large buildings can be traced back to several years ago. This theory has led to many researches concerning design and development of this type of building with the goal of reaching the maximum energy efficiency for smart infrastructures.
First level: By the local controllers (hardware) the management of each area is assigned to one of the local controllers.
Second level: central software controls the entire local fire alarm systems, cameras and access control systems.
Building Automation System (BAS) department was established in Kerman Tablo in 2006.BAS has accomplished essential and immense experiences in design, consultancies and after sale services due to the implementation of different projects, in providing cooperation of the highest level in terms of consultancy to governmental and privately owned organizations.
Building Management system works on two levels:
Due to the breakdown of management control levels, done by the software system of the central and local control, the local controller can continue its activities even if the communication between local control and central software is disconnected, and can maintain the control of the related area. Therefore, there will be no gap in the building management. Meanwhile, the communication interruption will be reported graphically by the central control software.
BAS system consists of:
- Closed Crcuit Television (CCTV)
-Access Control
-Fire Alarm
-Broadband over Power Line (BPL)
the software program, usually configured in a hierarchical manner, can be proprietary, using such protocols as C-bus. Besides, vendors are also producing BMSs that integrate using Internet protocols and open standards such as Device Net, SOAP, XML, BACnet, Lon Works and Modbus. Such systems can be seen and utilized in: Chillers, Industrial Coolers, Boiler, Fan- Coil (Radiator) & Heater, Air Conditioner, Pump, Water Heater and Lighting.
DCS Software
KTC DCS has a software package for PC’s and controller installations.This package is divided into 5 parts:
1. Local Controller Unit (LCU)This sub-system is responsible to gather analog/digital data from IO boards and performs control routines and loops (such as inter-locks and PID loops) and sequence controls. This unit can handle all sorts of process controls such as, Logic control, Sequence control, Computational algorithms, Control algorithms and Simulation. And also supports:
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2. Data Acquisition Server (DAS)DAS is responsible for the communication between LCU and OWS. In some applications the DAS software can also be redundant and run on two different computers. This subsystem receives the event messages from LCU and analyzes them for alarm handling. |
3. Operating Work Station (OWS)
The OWS is an interface between users and DCS systems. By using this system via various displays, the operator can handle all his actions. Different types of displays allow the operator to easily handle a large amount of data in different textures and graphical formats. For each control loop, OWS allows the operator to perform all normal control functions and monitoring the results of these actions.
For each function available in OWS there is an access flag that must be set by engineers during the configuration phase, so users of these systems (Operators, Engineers, Supervisors) have different levels of access for their operation.
Different types of displays available in these systems are Process display, Group display, Object display, Trend display, Alarm list display, Event list display
4. Historical Server (HIS)
For historical applications and analysis historical data, it is required to take samples from real time data and then archive them in a database. The data can be re-loaded from databases and historical applications can be undertaken. Usually Microsoft SQL server is used as a database engine for storing data. The HIS package connects to this server for showing data in graphical trends.
5. Engineering Work Station (EWS)
EWS is a suitable place for configuration of the DCS system. The system operator can define or edit all parts of the system, including LCU, DAS, OWS, HIS, and all other Subsystems in the DCS including their different libraries.
The configuration consists of:
- System architecture and station relatives.
- Process databases and related parameters.
- Different type of process displays.
- Different type of graphical blocks.
- Programming control routines and loops.
- Users, user groups, and their accessibility features.
- Alarm/Event, Network and Printers.
- Different type of graphical blocks.
- Programming control routines and loops.
- Users, user groups, and their accessibility features.
- Alarm/Event, Network and P
DCS Package
These modules have been designed especially for industrial applications and harsh environments which can be used for indoor applications. All in/output IO Card lines are protected from over voltage, short circuit and electrostatic discharge.
SCADA Hardware
KTC RTU
The RTU provides intelligence in the field, and allows the central SCADA master to communicate with the field instruments. It is a standalone data acquisition and control unit. Its function is to control process equipment at the remote site, acquire data from the equipment, and return the data to the central SCADA system.
As an EPC contractor, KTC provides various solutions for SCADA projects using different RTUs; its own internally developed products or every other brand’s proper RTU.
Persia RTU
In WAOC (West Area Operating Center) and NAOC (North Area Operating Center) and TRDC (Tehran Sub-Transmission SCADA Project) different number of this RTUs were installed and have been working properly.
The powerful KTC PersiaC Controller system is powered by Linux. The PersiaC Embedded Controller is competitive with Industrial PCs in performance, and it costs much lower. The system provides VGA and PS/2 keyboard/mouse for local visualization and management. User control programs and data can be saved in persistent storage via Compact Flash and USB interfaces.
PersiaC has capacity to support a function of concentrator in terms of telecommunication. Indeed, it has ability to be a telecommunication node with respect to the Control Center in order to relieve the number of telecommunication lines between the field equipment and the Control Center.
SCADA Software
KTC SCADA Features
Modular Structure
Each module or subsystem independently runs certain control and monitoring tasks during system runtime. All system data operations are handled and controlled by subsystems.
| 1. RedundancyEvery subsystem optionally has an identical subsystem working in parallel as hot-standby subsystem which runs on a separate hardware. During normal operation, standby subsystem updates its own database. By the time the main subsystem crashes for any reason, standby subsystems resume functionality while the main system automatically tries to recover the failed subsystem in standby mode and providing operator with appropriate alarm. |
2. Scalability Subsystems operate their own tasks independently. Based on this method subsystems are distributed, and system configuration differs. KTC SCADA subsystems are distributed by function, e.g. one or more subsystems may run a part of a systems operation. Scalability gives the system capability of scaling system to a desired capacity with little change in configuration and consequently minimum expense, achieving higher availability of the system as the system becomes more distributed, while extending the system life time. |
| 3. Open system standards and operating systemsThe open architecture of KTC SCADA provides easy access to the system, it is designed to support Open standards such as ODBC (Open Data base Connectivity) and OPC (OLE for Process Control). The main SCADA subsystems are available on the industry standard operating systems such as UNIX, Solaris, Linux, and Windows NT/2000/XP/2003 operating systems over IPC or SUN machines. Choice of database is also open to Microsoft SQL Server, Oracle or PostureSQL. | 4. Security and Access ControlKTC SCADA systems are implemented with several layers of security. Supervisors can assign the level of accessibility to users. Working with internal networks and using firewalls, makes it a very secure system. |
5. Standard development tools
Standard development methods, languages and tools are used in order to provide systems which are hardware-supplier independent and can easily and cost effectively be ported to new hardware platforms or operating systems. This also enables the integration of other software’s in an efficient manner.
KTC SCADA General Services
1. Human Machine Interface
The graphical user interface (GUI) of KTC SCADA represents one of the most advanced SCADA operators and system manager interfaces. User interface features can be summarized as below:
- Multi-Windowing
- Multi-Monitoring
- Alarm Listing, Playing Siren and Blinking Alarming Points
- High Performance Zooming and Panning
- Fast Find Capability for Searching Process Objects in All Windows
- Real-Time Multi-Color Trend Drawing for Analog Value Fluctuations
- Event Viewer for Both under Control System and SCADA Center
- Alarm List with Process Diagram Connectivity
- Symbol Library for Process Object Visualization
- Group Alarming
Man Machine Interface (MMI), Trend, Event Viewer and Alarm List are KTC SCADA GUI applications.
Generating historical reports and graphs using the database is also available in KTC SCADA system.
2. Data Gathering Protocols
The KTC SCADA Multi-Port Pollersubsystem , manages data transfer between SCADA center and RTUs/IEDs. It gathers data from processes and hands over the data to the processing section. It also sends the dispatcher’s command to RTU/IED, and monitors the command operation procedure. KTC SCADA has the ability to communicate with RTUs/IEDs using multiple protocols, simultaneously.
KTC SCADA supports the following standard and industrial protocols:
- IEC 870-5-101/103/104 (TCP/Serial)
- DNP3
- Modbus (TCP/Serial)
- Hitachi HDLC
- INDACTIC 2033
- OPC Client and Server
- KTC Persia and X-BUS; KTC developed special protocol for reliable and safe data communication with low overhead. Persia and X-Bus protocols are based on IEC 870-5.
| 3. Hierarchical CentersThe Inter-Center Communicator (ICC) subsystem, allows data exchange between a local utility control center and other control centers, other utilities, power pools, regional control centers, and Non-Utility Generators. The exchanged data consists of real-time and historical data, including measured values, scheduling data, energy accounting data, and operator messages. ICC supports KTC-ICCP and LAPB protocols. | 4. Choice of ScriptingIf your system needs a specific requirement, you have a choice of two high level scripting languages, VB script and Java script to fulfill your needs as well as a tailor made scripting procedure customized for KTC SCADA. This software also supports ISAGraf witch is designed and configured for automatic reactions based on specific events and conditions. |
| 5. Remote PC Connection via dial up or LAN/WANThe concept of using a remote workstation to control your SCADA system implies that there is ability to monitor, control and maintain the system from any location. | 6. Database AdministrationDatabase generating and editing is done through a powerful user interface. The Data Base Administrator (DBA) subsystem generates the appropriate data for all subsystems. Users can draw process diagrams and define process parameters in DBA applications, so that the users can perceive the SCADA system as a whole. |
SCADA Package
The KTC SCADA is built around industry standards, opens interfaces and protocols, making it a prominent open system and one, can easily integrate with third party systems. This package provides organizations with critical information, enabling them to improve their overall business performance. It is extremely versatile and scalable SCADA software and its innovative scalable architecture allows your system’s architecture to grow with your requirements, while preserving your initial investment.
- Open standards such as ODBC and OPC
- Versatile, scalable and flexible architecture
- Advanced user interfaces
- Distributed, real-time databases
- Multiple open hardware and software platform support
- Redundant servers with automatic fail over
- Redundant data highway (LAN) and remote communications
- SQL data interchange
- Logic and Custom Control
- Time-stamped history data recording and trending
- Trends, Graphs, Events and Historical Archive
- VBScript/Jscript language support
- Systems Integration
- Reliability and Quality
Automatic Voltage Regulator
- Voltage Regulating Relay KT30 Series Micro processor Controlled
- Line drop and Z compensation
- Voltage setting remotely controllable (3 load shedding inputs and 4-20 mA input signal)
- Internal computation to minimize circulation current of parallel transformers (parallel card is not required, only in KT30P series)
- Basic controls such as auto/manual, individual/master/parallel, manual tap rising, and manual tap lowering etc. (only in KT30T series)
- Compliance with IEC60255-5: 2000-12, IEC —255-21: 1986-16, EN55011: 1998 +A1: 1999
AVR Relay Technical Info
Three Phase Meter
- The ability to Measure and record active/reactive energy
- Programmable load profile
- Enhanced anti-temper system
- Complete and comprehensive structure for tariff scheduling
- Configurable and backlight LCD display
- OBIS code display
- Records maximum demand and exceeding with date and time stamp
- Log book for event recording
Single Phase Energy Meter
EMS 210 features:
- Ability to measure and record active/reactive energy
- Programmable load profile
- Enhanced anti-temper system
- Complete and comprehensive structure for tariff scheduling
- Configurable and backlight LCD display
- OBIS code display
- Records maximum demand and exceeding with date and time stamp
- Log book for event recording
- Maintains historical records
- RS485 and output control for Automatic Meter Reading (AMR)
- Compact size and light weight
Compact Substation (CSS)
CS 24/36 is a series of outside-operated compact secondary substations for up to 36 kV volts.
These series are designed and manufactured by KTC to withstand different operating requirements and various environmental conditions.
The unit is a fully-equipped package substation that includes outdoor housing, medium voltage switchgear, distribution transformer, low voltage panel, and internal wiring for lighting on all compartments. As such, only the incoming cables need to be connected at the site and the site works are kept to an absolute minimum.
Some of the main features & advantage of CSS-KTC are as follow:
- Walk in / Non-walk in substations
- Versatile Design for harsh environments
- Flexibility in selecting the required LV & MV equipment
- Completely galvanically insolated compartments
- IP43 for the LV & MV compartments, IP23 for transformer compartment
- Easy lifting means via ‘eyes’ fixed on the roof
- MAIN LV & MV equipment customizing
- Double roof with air insulation
- Heat run tested to class 10 according to IEC 61330
- Powder-coated finish
- Optional SCADA system interface
MV Switchgear
Some of the main features of MC-KT are as follow:
- Maximum safety and protection against electric shocks
- High Operability
- Reliable interlocking system
- Simple Structure
- Fast Installation
- Easy Expandability
- Electrostatic Painting
The MC-KTC series are type tested in Accredited laboratories and some of the main advantages of this series are:
- Optimum safety for operators
- Operation reliability
- Low maintenance construction and apparatus
- Supporting different types of circuit breakers and contactors
LV Switchgear
General types of KTC-LV series are as follows:
- Withdraw able/fixed incoming feeder up to 6000 A
- Withdraw able/fixed sub-feeder with fused load break-switches up to 630 A
- Withdraw able/fixed motor control starters with either Molded Case Circuit Breaker (MCCB) or fused load-break switch as main circuit interrupter, up to 250 kW
- Separated and isolated bus bar compartment to increase operation safety
- Separated and isolated cable compartment
- Uniform drawer eases any line-up combinations design
- Choice of different type of main circuit interrupter (MCCB or fused load break switch)
- Uniform cubicle design for LV distribution / MCC and Withdraw able/fixed applications
