» ABB Thermistor Relay Latest Jobs Openings in Companies in India
ABB makes low voltage electronic relays (thermistor relays, timer relays, monitoring relays, safety relays, interface relays, solid state relays, etc.) as well as protective relays for generators, transformers and substations.
The thermistor motor protection relays CM-MSE, CM-MSS and CM-MSN are used to control motors equipped with PTC temperature sensors. The PTC temperature sensors are incorporated in the motor windings to measure the motor heating. This enables direct control and evaluation of various operating conditions.
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The MMCO greatly simplifies overcurrent relay selection and enhances the protective relay function. It can be programmed to fit virtually any overcurrent application, and provides valuable fault information not available from conventional relays. Communications options provide immediate retrieval of fault and status data, and the ability to reset or reconfigure the relay remotely.
The MMCO uses microprocessor technology to incorporate eight time curve families into one relay. Any traditional COtype curve family may be selected from the relay’s memory.
Often there is the application requirement to trip more than one breaker when the seriousness of the fault condition warrants it. With today’s protection relay technology, there is most likely only one relay available that must be tasked to trip all essential breakers. However, this lone relay will have only one trip signal that would not only have to be duplicated, but also extended to trip those extraneous breakers.
Advanced relay technology allows for programming the master trip signal to multiple programmable output contacts to wire to the multiple trip circuits. However, if the trip signal resets itself or drops out
CA generator differential relay is a single phase, induction disc type with inverse timing characteristics. It is provided with one operating winding and two restraining windings without taps. Designed for 2-winding transformer protection, the CA transformer differential relay has a constant percentage differential characteristic and inverse timing. It is a single-phase unit, and three relays are used for three-phase transformer protection The CA-16 relay is a single-phase differential relay used for protection of multicircuit buses up to a total of six circuits. The CA-26 relay provides differential protection for both 2- and 3-winding transformers. It is also suitable for combination
The MMCO greatly simplifies overcurrent relay selection and enhances the protective relay function. It can be programmed to fit virtually any overcurrent application, and provides valuable fault information not available from conventional relays. Communications options provide immediate retrieval of fault and status data, and the ability to reset or reconfigure the relay remotely.
The MMCO uses microprocessor technology to incorporate eight time curve families into one relay. Any traditional COtype curve family may be selected from the relay’s memory.
The type KV-1 is a high-speed single phase undervoltage relay particularly suited for applications where high drop-out ratio is desirable. This relay may be used for high-speed carrier tripping or carrier starting for phase fault clearing of a weak-feed terminal. Hot-Line reclosing is another application for this relay.
The type 47 relays provide three-phase undervoltage and phase-sequence protection for protection of motors, or for the initiation of bus transfer. A major benefit of this relay is that is is more sensitive to unbalanced voltages ("single-phasing") than many of the comparable electro-mechanical types.
The earth-fault relay SPAJ 110 C is designed to be used for selective earth-fault protection, either primary or back-up protection, in solidly earthed or low-resistance earthed power systems. The relay has two protection stages: a low-set overcurrent stage I 0 > and a high-set overcurrent stage I 0 .
The low-set stage operates with definite-time characteristic or with inverse-time characteristic, while the high-set stage operates with definite time characteristic only. The earth-fault relay is used both as primary and back-up earth-fault protection relay for feeders, transformers, generators and motors. The relay can be configured to cooperate with a residual voltage
The type KD relay is a polyphase compensator type relay which provides a single zone of phase protection for all three phases. It provides instantaneous tripping for all combinations of phase-to-phase faults, two-phase-to-ground faults, and three-phase faults. Type SDG-1T, 2T and 4T relays are single zone ground distance relays used to detect faults on subtransmission or transmission lines. HZM relay is a three-element high speed relay of the modified zone distance type operating instantaneously or with a time delay depending upon the location of the fault.
The SPAF frequency relays are intended for protection against frequncy abnormalities in generators, motors and network. The frequency relay SPAF 340 C is used for load shedding in situations where power consumption exceeds the available power of the network. In such a situation of unbalance, the network frequency tends to fall. The frequency relay can control four circuit breakers, allowing four feeders to be disconnected from the network, one by one.
Should the power deficiency still persist, the relay disconnects the plant for island operation. The operation of the relay can be based on set frequency values (f
The type KD relay is a polyphase compensator type relay which provides a single zone of phase protection for all three phases. It provides instantaneous tripping for all combinations of phase-to-phase faults, two-phase-to-ground faults, and three-phase faults.
The KST relay is used with another distance relay such as a KD-3 relay or the 3phase unit of a KD-4, KD-10, or a KD-11 to sense an out-of-step condition on a power system and to intiate tripping. When fault occurs within the reach of the KST, the distance unit and the KD-10 3-phase units operate essentially simultaneously and, for fault removal, reset essentially
The high threshold AR is a sensitive high speed auxiliary relay with 4 normally open contacts designed to be secure against misoperation due to inadvertent grounding of a station battery or the trip lead. With the battery balanced with respect to ground, the maximum momentary voltage that can be applied to an auxiliary relay for either of these ground is half battery voltage. The operating level of the high threshold AR exceeds these levels. The type ARS relay is composed of 1 or 2 AR units with series resistors, a printed circuit module, and indicating contactor switches (ICS) when required.
The SPAG 310 C numerical generator protection relay applies for the protection of small and medium sized power generators. The generator protection relay is used in small hydro-power plants, thermal power stations and other stationary power plants. Further, the relay is approved for use in marine and off-shore applications on board large passenger ferries, service vessels, oil-drilling platforms, maintenance platforms, accommodation platforms, ice-breakers, etc.
Off-the-shelf generator protection relay for small and medium sized power generators
Three-phase time overcurrent and short-circuit protection, Single-stage reverse power protection. Two-stage overvoltage protection, Compact and robust mechanical design in an aluminium case to IP 54, Local
The AR relay is a four-pole auxiliary type relay designed for ultra high speed circuit breaker tripping duty in protective relaying systems. It is well suitable for bus arrangements where more than one breaker must be tripped. The relay mayalso be applied to provide isolation of primary and back-up relaying, and provide high speed tripping for zone 1 faults.
The high threshold AR is a sensitive high speed auxiliary relay with 4 normally open contacts designed to be secure against misoperation due to inadvertent grounding of a station battery or the trip lead. With the battery balanced with respect to ground,
The REL300 MDAR is a full-scheme numerical line protection system, with three zones of distance protection. All measurements and logic are performed on a single microprocessor. The REL300 MDAR includes comprehensive pilot logic, overcurrent protection, single or three pole tripping, fault location and DFR recording.
The 2000R Series' External Communications Programs provide for point-to-point communications with the relay. By using ECP you can program settings, map logical inputs and outputs, and monitor the metering and event recording functions of the relay. You can also use ECP software without being connected to a relay to explore the capabilities of the relay, or
The Type MG-6 relay is designed for applications where several independent circuits may be energized or de-energized upon the operation of a single primary relay contact or where the capacity of the primary relay contact is inadequate for the energy required.
In certain applications these relays may be used directly as primary relays. The stationary contacts can be reversed so that either circuit opening or circuit closing service is readily attained. It is not necessary to predetermine the relay’s circuit arrangements
The electronic overload relay E16DU is the alternative to the thermal overload relay. The E16DU offers reliable and fast protection in the event of motor overload or phase failure.
The relays and the accessories comply with the major international (IEC), European (EN) and national standards (DIN-VDE, NFC-UTE, BS, etc.) and meet the approval and licensing regulations necessary worldwide.
The overload relays are connected directly to the contactors to form a close-coupled motor starter.
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ABB Inc a global leader in new instrumentation developments and technologies, has announced the release of its next generation of ultrasonic level monitors and controls. The new Field DATUM ultrasonic level monitoring and control instruments expand the ABB instrumentation line to include latest-technology devices while maintaining the ABB heritage and reputation for reliability and dependability.
The Field DATUM ultrasonic level measurement products provide non-contacting, maintenance-free level control and indication of liquids and solids. They use the very reliable ultrasonic time of flight through air technique. These systems are extremely versatile and can be used in a wide variety of measurement situations.
Monselice, October 15, 2009 – ABB, the leading power and automation technology group, inaugurated a new production facility in Monselice, Italy to strengthen its transformer manufacturing network. This unit will produce small power transformers up to 170 kV, serving the power and distribution needs of utility and industry customers.
This state-of-the-art manufacturing facility will help meet local demand and serve as our sourcing base for the European, Middle East and African markets,” said Hanspeter Faessler, Country Manager for ABB in Italy and Head of the Mediterranean region. With 40,000 square meters of manufacturing and R&D facilities including 20 percent green
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