Protection Relay
acts as a circuit breaker in the event of a fault.
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Product
Portable Relay Tester
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The protective devices such as relays, overload coils, circuit breakers must be checked regularly to ensure that, they are always ready to operate correctly. If a fault occurs in the equipment, which they are protecting, routine relay testing will quickly detect the faulty, incorrectly adjusted protection circuit and will possibly prevent serious damage to plant or injury to personnel. Apart from checking the protective circuits correctly, it is usually necessary to measure its operating time. The micro controller based time interval meter is used for this purpose in all AJIT brand relay tester.
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Product
Circuit Breaker Simulation Device
PSS01
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PSS01 is the circuit breaker simulator,which can conduct circuit breaker simulation to test the whole secondary relay scheme together with relay test set. It is very good accessory for protection relay test kit to avoid complicated software programming to finalize the same test.
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Product
Primary Injection Kit
Prima Series
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Prima Series is designed for Primary Current Injection Testing of Current Transformers, Protection Relays & Circuit Breakers during their Factory Test, Commissioning and Routine Testing.
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Product
FTS / FTP
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The SecuControl FTS Test Block, used with FTP and LTP test plugs, provides a modular and fully finger-safe interface for secondary injection testing in IEC-based substations. With built-in CT shorting, keyed plug design, and predefined sequential operation, the FTS ensures safe, repeatable, and error-free testing of protection relays, fault recorders, and revenue meters. Its space-saving installation, flexible wiring options, and robust safety features make it the ideal solution for standardized and efficient testing across modern protection systems.
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Product
Relay Test Set
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Relay testing equipment is a portable apparatus designed for checking the operating characteristics of protective relays on site. Rr Relay Testing Equipments are designed to facilitate routine test or periodic maintenance test of relays by simulating (as early as possible) fault conditions under which the protective relays are required to function. There are several approaches to the method of testing relays on site. The Relay Testing Equipments are secondary injection type and are intended to be used to test the relays after isolating them from live systems, either physically or electrically.
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Product
Automatic Relay Test Set
DRTS 33
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DRTS 33 is the most powerful diagnostic test set designed to perform accurate tests on protection relays, transducers, energy and power quality meters. This advanced test equipment is also thought to satisfy all the needs related to commissioning and substation maintenance. 3 Current and 3 Voltage generators simultaneously available.
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Product
20Hz Generator
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Signals & Systems India Private Limited
In order to implement a 100 % stator earth fault protection based on subharmonic injection, a 20Hz voltage is injected into the generator star point. The 20-Hz generator SGEN-1001 is used in combination with the Band Pass Filter SBPF-1001 in the Stator Earth fault protection. The injection can be performed by connecting the SGEN-1001 and the SBPF-1001 to the load resistor of an earthing or neutral transformer. If an earth fault occurs in the generator star point, the 20 Hz voltage drives a current through the fault resistance. From the driving voltage and the fault current, the protective relay determines the fault resistance.
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Product
Enlarge Environmental Chamber
REXMED REC-250
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MOD. REC-250, AC 230/380/415V, 1/3 phase, Environmental chamber, HS CODE: 841989, UNCCS CODE: 484384, UMDNS CODE: 16327, Main construction: SS304, Interior: SS304, Exterior: SS304 powder coated, Insulation: Rigid polyurethane foam and glass wool, Controller: Fix point PID controller, temperature ˚C/PV and ˚C/SV, humidity %/PV and %/SV display and setting, Temperature range: -20˚C~100˚C, Humidity range: 20%RH~98%RH, Constancy: ±0.3˚C ±2.5%RH, Uniformity: ±1˚C ±3%RH, Temperature and humidity sensor: PT 100Ω, Temperature and humidity audio and visual warning and OFFS correction setting, Temperature heater: 1.5KW X 2pcs, Humidity heater: 2.5KW X 1pc, Heat up transition time: -20˚C~100˚C within 35 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 3,140 Watts, 10,700 BTU/hr, 2,702 Kcal/hr, Cool down transition time: 20˚C~-20˚C within 45 min, Safety devices: No fuse breaker, refrigerator over load relay, refrigeration high pressure switch, over temperature protector, protection relay, protection fuse, water level control and overheat protector, Chamber: L60 X W80 X H85cm, Capacity: 408L, chamber with key lock, with lamp (DC 12V 50W) X 1pcs and double glass viewing window, testing cable port with cover: Ø25mm, 4 castors, W/S: shelf X 2pcs, standard testing wet cloth X 5pcs, PCV water container X 1pc
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Product
Three Phase Power Calibrators And Tester Of Power Engineering Devices
C300B
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Calmet Smart Calibration Devices
Three phase, class 0.02 and 0.05 power quality calibrator up to 120A (360A) and 560VAC with programmable power quality parameters. It makes possible to make automatic test of electricity meters, measurement transducers, current transformers and protection relays.
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Product
Distribution Operations
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Schweitzer Engineering Laboratories, Inc.
SEL provides tools that work with protection and control relays to improve your system’s visualization and dynamic response—while still maintaining performance, situational awareness, and efficiency.
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Product
NI TB-2643B Terminal Block for NI 2532B as 1-Wire Dual 4x64 Matrix or 2-Wire 4×64 Matrix topology With Column Protection Resistors
782385-08
Terminal Block
The TB-2643B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 4x64 or 1-wire dual 4x64 matrix. You can directly connect the TB-2643B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2643B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
NI TB-2645B Terminal Block for NI 2532B as 1-Wire Dual 16x16 Matrix or 2-Wire 16×16 Matrix Topology Without Column Protection Resistors
782385-11
Terminal Block
The TB-2645B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 16x16 or 1-wire dual 16x16 matrix. You can directly connect the TB-2645B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2645B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Integration
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Schweitzer Engineering Laboratories, Inc.
Integrate protective relay and metering information into SCADA and plant control systems through secure networking and automation devices.
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Product
Step Up Transformer
MagD
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SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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Product
NI TB-2641B Terminal Block for NI 2532B as 1-Wire 8x64 Matrix topology With Column Protection Resistors
782385-04
Terminal Block
The TB-2641B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 4x128 matrix. You can directly connect the TB-2641B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2641B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Relay Test Set Type SP-I
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Supreme Instrument Laboratories
Supreme make relay testing set is designed for site testing of protective relays which simulate in common fault conditions under which a protective relay will be called into positive function. Periodic field testing is the best way of ensuring the integrity of the protective relays. We offer our relay testing set with specific testing capacity to suit different group of protective relays. The testing set operates on single phase 230 V, A.C. 50Hz. Supply.
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Product
Automatic Relay Test Set
DRTS 66
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DRTS 66 is the most powerful diagnostic test set designed to perform accurate tests on protection relays, transducers, energy and power quality meters. This advanced test equipment is also thought to satisfy all the needs related to commissioning and substation maintenance. 6 Current and 6 Voltage generators simultaneously available.
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Product
Primary Current Injection Test Set
T 3000
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T 3000 is a primary current injection testing system designed to perform primary tests requested in substations commissioning. It allows to perform different tests and measurements on current transformers, voltage transformers, power transformers, protection relays, energy meters and transducers
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Product
Microcomputer Six-phase Relay Test Set
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Weshine Electric Manufacturing Co., Ltd
It is a new miniaturized microcomputer relay protection tester realized by extensively listening to users' opinions, summarizing the advantages and disadvantages of similar domestic products, and fully using modern advanced microelectronic technology and devices. It adopts the advanced structure of stand-alone operation, and can also be connected to a notebook computer.
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Product
Enlarge Environmental Chamber
REXMED REC-450
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MOD. REC-450, AC 230/380/415V, 1/3 phase, Environmental chamber, HS CODE: 841989, UNCCS CODE: 484384, UMDNS CODE: 16327, Main construction: SS304, Interior: SS304, Exterior: SS304 powder coated, Insulation: Rigid polyurethane foam and glass wool, Controller: Fix point PID controller, temperature ˚C/PV and ˚C/SV, humidity %/PV and %/SV display and setting, Temperature range: -40˚C~100˚C, Humidity range: 20%RH~98%RH, Constancy: ±0.3˚C ±2.5%RH, Uniformity: ±1˚C ±3%RH, Temperature and humidity sensor: PT 100Ω, Temperature and humidity audio and visual warning and OFFS correction setting, Temperature heater: 1.5KW X 2pcs, Humidity heater: 2.5KW X 1pc, Heat up transition time: -40˚C~100˚C within 45 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 3,644 Watts, 12,433 BTU/hr, 3,140 Kcal/hr, Cool down transition time: 20˚C~-40˚C within 50 min, Safety devices: No fuse breaker, refrigerator over load relay, refrigeration high pressure switch, over temperature protector, protection relay, protection fuse, water level control and overheat protector, Chamber: L60 X W80 X H85cm, Capacity: 408L, chamber with key lock, with lamp (DC 12V 50W) X 1pcs and double glass viewing window, testing cable port with cover: Ø25mm, 4 castors, W/S: shelf X 2pcs, standard testing wet cloth X 5pcs, PCV water container X 1pc
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Product
Relay Test Kit
Relaystar-H60
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HAOMAI Electric Power Automation Co., LTD.
Portable 6-phase protection test equipment for testing most types of modern multi-function protection relays, Output 6-phase AC current 6x0…32A Output 4-phase Voltage 4x0…300V.
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Product
IEC61850 Digital Substation Testing
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KINGSINE Electric Automation Co., Ltd.
Integrated relay test set with high accuracy & full solution (complying IEC61850 sampled value and GOOSE), fully meet all the requirements for detection and debugging of IEC61850 IEDs, Merge Units, station control systems and traditional protection relays.
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Product
Overcurrent Protection Relays
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DKR-24 Besleme üniteleri, tüm elektrik tesislerinde 24V DC gerilim ihtiyacnkarþlamada kullanlrlar. DC besleme, genellikle acil durumlarda kullanlmaküzere aranmaktadr. Bu nedenle besleme ünitesi her an hazr durumdaolmaldr
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Product
Protection Relays
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ROCON designs and manufactures large variety of world-class intelligent electronic devices (IEDs) for relay protection and automation. They are applicable for all kind of utilities in industry - for all power system facilities (in production, distribution and transmission of energy to the end user) for transport companies, for factory substations etc.
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Product
Primary Current Injection
PCI-600
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The VIC Model PCI-600 is a programmable, high-current source that is designed specifically for utility-substation applications. This alternating current(ac) test device is used primarily for injection testing of protective relays. This same device can also be used for testing thermal, magnetic and solid-state motor-protection relays and molded-case circuit breakers.
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Product
Secondary Injection Relay Test Set
TD 1000 PLUS
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TD1000+ is a protective relay test set especially designed to give the commissioning engineers a multitasking and highly reliable testing equipment. In comparison with T 1000 PLUS model, TD 1000 PLUS has two current outputs to test the differential relay characteristic curve, besides the pick-up current.
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Product
NI TB-2644B Terminal Block for NI 2532B as 1-Wire Dual 8x32 Matrix or 2-Wire 8×32 Matrix Topology Without Column Protection Resistors
782385-09
Terminal Block
The TB-2644B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire 8x32 or 1-wire dual 8x32 matrix. You can directly connect the TB-2644B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2644B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
Three Phase Protective Relay Test Equipment
TEST-330
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Beijing GFUVE Electronics Co.,Ltd.
Test-330 three phase protective relay test equipment is a three phase current output and five phase voltage output relay tester with embedded host machine equipped with Complex Programmable Logic Device.
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Product
Phase Angle Meters
GF211
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Beijing GFUVE Electronics Co.,Ltd.
It can be applied to electric power dispatching center, relay protection department or relay protection in power plant. Its metric division class makes it suitable for petroleum, railways and the iron and steel industries also.
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Product
Protection Testing Library
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The OMICRON software technology including the OMICRON Control Center, XRIO, and LinkToXRIO enables users to create specific test templates which adapt automatically to the actual relay settings. This functionality is the technological basis of the Protection Testing Library (PTL), a comprehensive test template library for a wide range of protection relays.





























