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Protection Relay
acts as a circuit breaker in the event of a fault.
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Current Protection Relay
The main earth fault protection relays in distributions systems, power stations & large manufacturing / processing plants can fail to detect a high impedance break down to earth causing hazard to human life & potential damage to plant & equipment. In these & other situations demanding extra sensitive earth fault protection, using solid state techniques, can be applied to detect earth currents down to 0.5% of the CT nominal current.
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Protection Relay Testing
Haomai Electric Power Automation Co.,Ltd.
1)Embedded industrial PC with 9.7" TFT LCD screen 2)Both online and offline test available 3)Can test both universal and IEC 61850 protection relay 4)6-phase current + 6-phase voltage output 5)Provide various type of messages which conforms to IEC 61850-9-1/9-2,GOOSE, IEC 60044-7/8 FT3 6)Able to test MU and optical digital signal 7)Built-in GPS module
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Generator Protection Relay
SEL-700G
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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Protection Relay Testing Equipment
S40A
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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Protection Relay Test Set
HT-802 / 301
Wuhan Huatian Electric Power Automation Co., Ltd.
Special instrument for microcomputer relay protection test of microcomputer industrial control machine.
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Protection Relay Test Set
PW41i
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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Single Phase Universal Protection Relay Test Set
S100A
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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Protection Relay Test PW636i
PW636i
PW636i universal relay testing equipment is the most powerful protection relay test equipment. It can do all types of protection relay testing, from electromagnetic relays to numeral relays, microprocessor computer relays, and IEC61850 digital relays.
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6-Phase Protection Relay Tester
HME-1200
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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Portable Multi Phase protection relay test set with GPS
TEST-630
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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Power Calibrator And Protection Relay Test Set
CP11B
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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Protection Relay Tester
PW336i
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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Protection Relay Testing
ARTES
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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Protection Relay Test Set
HT-1200 / 305
Wuhan Huatian Electric Power Automation Co., Ltd.
It can be used to test all kinds of traditional relays and protection devices as well as modern microcomputer protection.
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Microcomputer Six-phase Relay Test Set
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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Power System Simulator
F6150e
This power system simulator performs the simplest through the most complex tests. Meeting all your protective relay testing needs, the F6150e is available in different configurations.
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Pilot Wire
The concept is based on the need to improve the performance of existing pilot wire protection schemes by increasing reliability & availability as well as adding an over current guard function. This can be achieved at considerably lower cost than the replacement of the existing proven protection relays & change over to a fibre optic communication channel.
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Protection Relays
Electrical protection relays for high voltage & high current protection offer protection in traction equipment as well as railway infastructure. Protection relays are used for applications like catenary voltage, short circuit, overload and ground fault detection in traction power electronics or railway substations.
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Automatic Relay Test Set
DRTS 64
DRTS 64 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 4 Voltage generators simultaneously available.
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Relay Test Set
Cambridge Instruments & Engineering Co.
“CIE” Relay Test Set is ideal for Testing Protective relay, over current relay, earth fault relay by secondary injection method with help of digital timer.
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Protection Relay Tester
PW866i
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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Protective Relay Testing Equipment
PW466i
PW466i (6×20A, 6×150V) 6-phase relay tester is a powerful secondary injection protective relay testing kit with 6-currents and 6-voltages sources.
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Motor Protection Relay
239
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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Relay Test Equipment
Vanguard Instruments Company, Inc.
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. The PCI-600 is versatile and can also be used in many other applications that require a high-current source.
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Sensing Resistors
Resistive Voltage Dividers
NGR Sensing Resistors are attached in parallel to the neutral grounding resistor. The sensing resistor allows a protective relay to detect a resistor failure in a continuous manner. Sensing Resistors are used in combination with neutral grounding resistor monitor relays. The relay measures neutral grounding resistance, neutral grounding resistor current and neutral to ground voltage. The relay continuously measures neutral grounding resistor ohmic value in an unfaulted system and it trips on if neutral grounding resistance varies from its calibrated value.
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Stand-alone Three-phase Protection Relay Test Set
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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Portable Relay Tester
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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Relay Test Set Type SP-I
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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Protective Relay Test Set
POM2-6143
POM2 series protective relay test equipment is the best modular designed relay tester with local control system. There are 2 models, the POM2-6143 and POM2-3243, the POM2-6143 with 6×15A and 4×300V.
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Line Protection
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.





























