Protection Relay
acts as a circuit breaker in the event of a fault.
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Product
Protection Relay Tester
PW336i
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PW336i protective relay tester is the best economic model with 6 current channels and 4 voltage channels, capable of automatic testing differential relay easily without changing cable connection.
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Product
SUPER-LIGHT Protection Relay Testing Equipment
L336i
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Protection Relay Testing Equipment has long been associated with the heavy weight and the large size. So carrying the relay testing set to work site seems to be the job of engineers who are physically strong.
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Product
Three-phase Protection Relay Test Set/Kit
POM2-3243
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POM2 series protection relay test kit is the best modular designed relay tester with local control system. There are 2 models, the POM2-6143 and POM2-3243, the POM2-3243 with 3×20A and 4×300V.
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Product
Protection Relay Testing Equipment
S40A
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S40A is a type of 3-phase protection relay test kit, with 3×40A, 3×300V, and also a local control system. It is a portable and economic secondary injection tester, and easy to use.
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Product
Motor Protection Relay
239
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The 239 relay is designed to fully protect three phase AC motors against conditions which can cause damage. In addition to motor protection, therelay has features that can protect associated mechanical equipment, give an alarm before damage results from a process malfunction, diagnose problemsafter a fault and allow verification of correct relay operation during routine maintenance.
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Product
Stand-alone Three-phase Protection Relay Test Set
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Weshine Electric Manufacturing Co., Ltd
Universal Auto Low Price 3 Phase Relay Protection Tester, 3 Channels ,40A/450VA Three-Phase Parallel 120A, 3 Channels, Each Channel ±10A/200VA
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Product
Protection Relay Tester
PW866i
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PW866i (6×32A, 4×300V) Protection Relay Tester could be used for testing all kinds of relays, also supports testing IEC 61850 combined relays. Its local control system is with 10.4inch LCD screen based on Windows system.
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Product
3-Phase Protection Relay Tester
HME-702
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HAOMAI Electric Power Automation Co., LTD.
Economical 3-phase Protection Relay Testerwith 3-phase current(3×40A) + 4-phase voltage(4×120V) output.
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Product
6-Phase Protection Relay Tester
HME-1200
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HAOMAI Electric Power Automation Co., LTD.
Economical 6-phase Protection Relay Tester 6-phase current (6×30A) + 6-phase voltage (6×120V) output.
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Product
Protection Relay Test Set
PW41i
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PW41i is designed with 3 currents (3*40A) and 4 voltages (4*300V). The local software system with many relay testing modules is designed based on Windows system, which is easy and convenient for operation and upgrade.
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Product
Protection Relay Testing
ARTES
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Compact, powerful relay test systems for carrying out highly complex tests with ease and precision. The test systems of the ARTES product line are used to carry out functional tests on all types of protection devices, including DT/IDMT relays, distance protection relays and differential protection relays, to ensure that they function correctly. More than 20 years of experience in developing and manufacturing automatic relay test systems have gone into creating the fourth generation of ARTES test instruments.
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Product
Power Calibrator And Protection Relay Test Set
CP11B
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Calmet Smart Calibration Devices
Single phase, class 0.02 and 0.05 power quality calibrator up to 120A 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
Generator Protection Relay
SEL-700G
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Schweitzer Engineering Laboratories, Inc.
The SEL-700G is the right solution for utility and industrial generator protection, with an autosynchronizer, flexible I/O, and advanced communications. Apply the SEL-700G for comprehensive primary and backup generator protection.
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Product
Protection Relay Test Set/Kit
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KINGSINE Electric Automation Co., Ltd.
Our conventional relay test set series is developed based on years of industry experience and technological accumulation, catering to various needs of power system relay testing. Renowned for its precise testing performance, user-friendly interface, and comprehensive functionality, this series has earned the trust and praise of numerous users.
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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
NI TB-2640B Terminal Block for NI 2532B as 1-Wire 4x128 Matrix Topology With Column Protection Resistors
782385-02
Terminal Block
The TB-2640B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 1-wire 4x128 matrix. You can directly connect the TB-2640B 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-2640B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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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
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
Epoxy Resin Silicon Rubber Outdoor Voltage Transformer
JDZW-10RG
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Beijing GFUVE Electronics Co.,Ltd.
Outdoor voltage transformer of the type JDZW-10 is single phase and epoxy resin silicon rubber insulated product, it's used for metering electric energy, voltage control and relay protection in 50/60HZ rated voltage less than 12kV electric system. It can be used for medial voltage AIS, or can be used for medial voltage switchgears. They can operate in all kinds of environments (such as wide range temperature (-50~70℃), high altitude, high humidity, high pollution or salt). This model JDZW-10 outdoor voltage transformer is also as voltage source to supply 220V voltage.
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Product
Single Phase Universal Protection Relay Test Set
S100A
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S100A is the Universal Single Phase Protection Relay Test Set with 1*100A and 3*150V output, local control system for basic relay testing with manual operation.
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Product
Portable Multi Phase protection relay test set with GPS
TEST-630
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Beijing GFUVE Electronics Co.,Ltd.
Test-630 multi Phase Universal protection relay test set have 6U6I output, it is a universal protection relay tester with eight pairs of binary input and four pairs of binary output
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Product
Line Protection
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Schweitzer Engineering Laboratories, Inc.
SEL transmission line protection relays provide subcycle line differential and multizone distance protection for a secure, reliable, and high-speed solution. Their fault-locating capabilities allow you to efficiently dispatch line crews to quickly isolate line problems and restore service faster.
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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
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
Secondary Injection Relay Test Set
T 1000 PLUS
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T1000 PLUS is a protective relay test set especially designed to give the commissioning engineers a multitasking and highly reliable testing equipment.
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Product
NI TB-2646B Terminal Block for NI 2532B as 1-Wire Quad 4x32 or 2-Wire Dual 4×32 Matrix Matrix Topology Without Column Protection Resistors
782385-13
Terminal Block
The TB-2646B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 2-wire dual 4x32 or 1-wire quad 4x32 matrix. You can directly connect the TB-2646B 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-2646B also provides optional isolation resistors to protect the reed relays from capacitive loads.
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Product
FTL Test Block
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FTL testblock with dust cover and current disconnect pinThe FTL is a test block for interfacing substation devices (protection relays, fault recorders, revenue meters, ... ) to the voltage and current transformers and to other equipment on the system side of a power grid. The FTL test block uses disconnect pins to isolate the substation devices from the system side equipment. Once isolated, secondary injection can be performed using banana jacks on the front side of the test block.
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Product
Circuit Breaker Analysis Systems
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When a fault such as a short circuit or current overload is detected by a protective relay, a trip impulse is sent to the circuit breaker. The circuit breaker must function as specified and interrupt the current as soon as possible or severe damage may occur. The damage caused by a malfunctioning circuit breaker can often be catastrophic, resulting in significant damage to the electrical system.
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Product
Relay Modules
DN-SSR4/N
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The DN-SSR4 includes 4 normally open, Form A, solid-state relays. The user can use the DN-SSR4 to switch high voltage load up to 240VAC and up to 4A. Four enunicator LEDs (one for each relay) light when their associated relay is activated. Each output is equipped with a varistor that shunts the surge voltage of the inductive load or electromagnetic brake to protect the relay contact point. All relay control and relay outputs are accessible through the wiring terminals.
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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.





























