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To control the temperature of electrical heating system using contactors and solid state relays is a simplest method of controlling. However, for heater load requiring gradual and smooth power regulation or for control using the step up or step down transformers, the thyristor power packs featured here are widely used. Incorporating the thyristors for heater power control, ensures steady control and enhances the life of the heaters. Single phase and three phase models are available for single phase load and three phase load in star or delta configurations. Special features allows facility to limit the voltage, current to the desired level and soft rise / fall of the voltage across the load at the desired rate. To suit OEM requirement, only SCR / Triac triggering cards can also be offered along with the wiring details to enable them to make their own thyristor power pack.
APPLICATIONS
For power control of electrically heated furnace, oven, chamber etc...
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JU Series Single-Phase Thyristor Regulators
The JU series small and lightweight thyristor regulators for single-phase loads are characterized with high panel installation density.
Two control systems, a phase-angle firing system and a zero-cross firing system, are built in and can be changed by remote contacts signal.
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The MEW range of controllers are designed for regulating a three phase supply, using the phase-angle control principle. There are a number of versions available and choice depends upon the preferred method of control. The simplest units are used in conjunction with potentiometers or analog signals that provide the set point to give voltage, current or power regulation. Microprocessor control provides more functions for customising, through a digital front panel and also the ability to operate from standard field bus systems such as Interbus or Profibus.
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Spectrum Control EMI filtered power products prevent unwanted interference from entering your system, as well as eliminate emissions that can contaminate the AC power grid. Our standard and custom products are available in a wide range of AC/DC current and voltage ratings to address EMI filtering for high current applications. All Spectrum power products are designed to meet global EMC emissions regulations.
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Watlow solid state power controllers complement the rapid switching required by PID temperature controls and help deliver optimum system performance and service life. Available in 1-phase and 3-phase/2-leg and 3-leg configuration, Watlow power controllers meet most industrial heating applications. Random, zero cross or phase angle fire options match power controller to the application requirement. DIN-A-MITE® SCR power controllers provide a convenient DIN rail mount package in current ratings from 18 to 100 amperes – a good replacement for equal mercury displacement relays. QPAC SCR power controllers rated up to 1,000 amperes for those large process heating applications. POWER SERIES microprocessor based SCR power controllers with ratings from 65 to 250 amperes. The POWER SERIES offers extensive system and heater diagnostics features and agency approvals. SERIES CZR is a CSA, VDE and UL® recognized contactor with ratings from 18 to 50 amperes single phase. Single solid state relays from 10 to 75 amperes. E-SAFETM relay is a 3 pole hybrid solid state/mechanical relay with current ratings of 20 and 40 amperes and is UL®-508 listed and C-UL®. E-SAFE is a good mercury displacement relay replacement in the amperages it serves.
Applications
Semiconductor processing
Plastics processing
Heat treating
Drying ovens
Foodservice equipment
Petroleum/chemical
Lighting equipment
Glass processing
Furnace/oven
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As a major Original Equipment Manufacturer and Supplier of turn-key plants, ALSTOM Power Service delivers not only after sales service for the key components, but also a broad spectrum of instrumentation and control as well as plant information systems solutions that allow to modernise plant control and improve and optimise your power plant business.
Instrumentation and Control Systems (I&C) perform the functions of regulation, protection, control, monitoring, alarm and information management on your power plant. It is a central information system that enables plant operators to supervise the plant effectively and to make the right decisions in time, and it ensures fault free operation of your plant. Therefore, state of the art I&C is beneficial and vital for plant information, decision making, competitive high end performance and high reliability of the plant.
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The latest addition to the IPoD range, this is a power driving module for up to 6 injectors using magneto-electric technology in multiplex mode. It features several different driving modes and numerous advanced functions enabling it to adapt to most commercially available injectors. This power driver is ideal for motor development in R&D applications or for after-sales service and endurance tests in Quality Control applications.
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EFS 8427 IPOD COIL
PRESENTATION
The EFS 8427 rack is a power
driving module for injection
systems that use magnetoelectric
technology.
It features different driving
modes and advanced functions
making it adaptable to most of
the injectors available on the
market.
ADVANTAGES
• Internal power supply adjustable from 6 to 50 V (compatible with the new automobile
systems powered under 42 V)
• Can operate at high voltages of up to 150 V and can generate up to 30 A peak value
• Independent unit with internal pulse generator
• Features functions compatible with the whole range of 823x Ipods
USE
The injector driving parameters can be modified by means of an RS232 or RS485 (4wire)
link, using the MODBUS protocol:
• MODBUS identification on the front panel
• Daisy chaining of racks by means of the RS485 link
• PC supervision software available on demand.
The injector driving can be started:
• by an external input
• by an internal pulse generator.
The driving modes are derived from a basic cycle defined by the following
phases:
• Boost phase (high voltage capacity discharge) as an option
• Pull-in phase (current chopping on thresholds)
• Holding phase (current chopping on thresholds)
• Discharge phase (Zener voltage).
The system is fully protected against overcurrents, short-circuits and overheating.
DRIVING EXAMPLES
Driving type 8238 Driving type 8237Driving type 8232
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The EFS 8370 module is a
power driver for piezoelectric
injectors.
It features different driving
modes and advanced functions
making it adaptable to most of
the injectors available on the
market.
ADVANTAGES
• Opening and closing voltage can be set independently between -200 V to +200 V
• Maximum current can be set from -20 A to +20 A
• Current slope can be set between 0.1 A/µs to 10 A/µs
• Enough power to deliver 250 injections per second
• Internal pulse generator.
SYSTEM DESCRIPTION
The driving parameters of the injector can be set via an RS232 or RS485 (4 wires link,
using the MODBUS protocol:
•MODBUS identification on the front panel
•Daisy-chaining of racks by means of the RS485 link
•PC supervision software available on demand
The injector driving can be started:
•by an external input
•by an internal pulse generator
Three driving methods are available as standard (see the examples above).
Other modes can be added upon request.
The « injector opening » voltage can be fixed or can changeby linear regression based
upon an analog input, the image of an external physical phenomenon.
The equipment is protected against overcurrents, short-circuits and overheating.
IPOD PIEZO
WinIPOD piezo (EFS1764) is a graphic
interface enabling the complete
parameter management (currents,
voltages, time) necessary for driving
the injector.
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An electronic device that assists the control of a vehicle's engine management system and transmission management system by instantaneously measuring multiple events enabling "real time" adjustments of fuel, air, spark and gear shift to help the powertrain operate efficiently, reliably, and economically.
The Delphi MT86 Powertrain Control Module (PCM) features an up-integrated design that reduces weight and wiring. Its small package size enables passenger compartment mounting. Its robust design enables under hood mounting. Its flash programming provides in-vehicle memory updates.
The MT86 PCM is designed to support most 6-cylinder port fuel injection gasoline and up to 6-speed automatic transmission programs.
Delphi also offers engine control modules (ECM) for 4-cylinder gasoline port fuel injection engines; light duty, medium duty and heavy duty diesel engines; and small (1- and 2-cylinder) gasoline engines.
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An electronic device that assists in the control of automatic transmissions to help them operate more efficiently and more reliably. It is a low cost module designed for under hood or passenger compartment mounting. It is suitable for most 4-, 5- and 6-speed transmission programs. It can also be used to support clutch-to-clutch and free-wheeling transmission programs.
The Delphi TCM8.1 Transmission Control Module has features that can help vehicle manufacturers meet demanding performance targets, higher level fuel economy requirements and very stringent emissions regulations.
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