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Product
Contacts Resistance Tester
JYK II
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•Instrument IPC architecture for domestic production of all models of metal contacts SF6 switchgear, GIS combination of electrical, vacuum switch, oil switch and column switches, contacts and so on.•Sensor: Acceleration speed sensor, rotation speed sensor, linear stroke sensorinstallation is very easy and simple.•Trigger: The trigger, external trigger, the sensor is triggered. Sensor can trigger the circuit breaker manually switching characteristic test, such as a manual column pole division switch.
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Product
Micro-Ohmmeters
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Contact resistance measurement is one of the most important and common tests during switchgear manufacturing, commissioning and maintenance stages. Besides switchgear testing, the RMO digital micro-ohmmeters are designed for simple, safe and efficient testing of:disconnecting switches,high-current bus bar joints,cable splices,welding joints,and different high-current links in factory and high-induction field environments.All DV Power RMO micro-ohmmeters use Kelvin’s 4-point measurement principle which is the most convenient for very small resistance measurements. The measurements are accurate and in accordance with international standards for AC high-voltage circuit breakers testing (IEEE C37.09 and IEC 62271-100).Starting from 2003, DV Power has been a trend-setter on the market when our first 500 A micro-ohmmeter weighing only 8 kg (RMO500A / CPM500) was released.Currently, DV Power products portfolio includes 16 models, divided into 3 series:13 portable models: RMO-A (6) and RMO-G (7) series.6 handheld models: RMO-H (6) seriesThe instruments generate a user-selectable and ripple-free test current up to 800 A in an automatically regulated test ramp. Test current ramping significantly decreases the influence of the magnetic transients to measurement.
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Product
Air Core Test Lab Reactors
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Test Laboratory Reactors are designed for high voltage and high power test laboratories. They are designed to withstand the most extreme electrical service conditions during test periods. Design techniques are implemented in accordance with the most demanding service conditions. These reactors are used for various purposes in test laboratories such as current limiting and synthetic testing of circuit breakers, capacitor testing, artificial line simulation etc.
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Product
Voltage Detectors & Others
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Voltage Detectors, Circuit Breaker finder, Portable working lamp are Indispensable equipment which must always accompany the technician. Its essential characteristics are an extreme handiness, a very high protection degree and easiness of use.
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Product
Circuit Breaker Identifiers
191 CBI
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Standard Electric Works Co., Ltd
● 191 CBI is an easy tool to find the circuit breaker or fuse supplying electrical power to an outlet or lighting fixture. Just plug the transmitter into the outlet.● Use the receiver to scan the circuit breaker panel box. An audible tone will be clearly heard when the right circuit breaker is scanned.● The plug of transmitter is changeable. The plug of transmitter could be changed for customers' requirement from different countries.
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Product
HV Test Set
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Beijing GFUVE Electronics Co.,Ltd.
Used for testing transformer, circuit breaker & switch etc by engineer, for example TTR tester can test transformer turns ratio.
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Product
HV High Performance Circuit Breaker Analyzer
CBV-32
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We conceived the CBV-32 to provide the best range of testing for electrical facilities such as circuit breakers (using gaz, oil, air, vacuum…) or synchronous condensers all the way up to 800kV and more. It combines Timing, Motion Dynamic Resistance Measurements, and Vibration, all in a single test.
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Product
Circuit Testers
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The circuit breaker finder pinpoints the specific breaker powering the circuit being worked on. Eliminates guessing and unwanted power outages caused by tripping the wrong breaker.
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Product
Contact Resistance Tester
JYL-200B/100B
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Product description: JYL-200B/100B contact resistance tester can measure contact resistance of high voltage switches and circuit breakeres, also can test primar side resistance of transformer and grounding wire in groups
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Product
Primary Injection Test System
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HAOMAI Electric Test Equipment Co., Ltd.
Primary injection testing is suitable for testing over-current trip relays attached to a circuit breaker.
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Product
Auto Reclose and Sync Check
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Operating records for overhead power lines reveal that most faults are of a transient nature (e.g. lightning induced) & that service interruptions may be minimized by use of automatic reclosing of circuit breakers. An automatic reclosure of the circuit breaker, after the fault clears, provides improved service continuity & system stability. The 1B230 Series Reclose Relay provides for single or double shot automatic reclosing of circuit breakers, following interruption of supply due to a fault in the system.
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Product
Circuit Protection
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Mors Smitt offers a wide range of railway hydraulic magnetic circuit breakers. The circuit breakers are fully configurable to meet individual requirements.
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Product
Circuit Breaker Identifiers
190 CBI
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Standard Electric Works Co., Ltd
● 190 CBI is an easy tool to find the circuit breaker or fuse supplying electrical power to an outlet or lighting fixture. Just plug the transmitter into the outlet.● Use the receiver to scan the circuit breaker panel box. An audible tone will be clearly heard when the right circuit breaker is scanned.● The plug of transmitter is changeable. The plug of transmitter could be changed for customers' requirement from different countries.
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Product
PC Based High Current Test Set for Circuit Breakers and Temperature Rise Test Equipment
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This equipment comprises of high current source for testing of circuit breakers with additional facility for temperature rise testing (thus incorporating testing for moulded case, vacuum & air circuit breakers as per IEC 60947-2). The system integrates a servo controlled source with closed loop current feedback to maintain the current constant. It has the necessary instrumentation for maintaining current at full load & other conditions arising in testing at high current. The bench has a PC based control system with temperature data logger (24 channel with ch-ch isolation amplifiers). The data logger displays as well as stores a set of temperature values with time.
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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
First Trip Testing of Circuit Breakers
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Significance of Circuit Breaker "First Trip Time"A circuit breaker may not be called upon to operate and clear a fault for years, but when a fault occurs, it is expected to operate within it's published time-current characteristics. Unfortunately, frequently this does not happen... environmental contaminants, hardened grease, vibration and other factors can adversely affect the operating time of the circuit breaker.
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Product
Relay Test Set
RNT-5A
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This is a portable testing kit in one unit, suitable for testing protective relay, over current relay, earth fault relay, protective device, circuit breaker, tripping coils etc. The set is designed for both laboratory and field use.
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Product
Primary Injection Test Systems
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Primary current injection testing is utilised in high current/high voltage scenarios found at large electrical installations such as substations. A large current (between 100A and 20,000A depending on system specifications and test requirements) is injected directly on the primary side of the electrical system such as a circuit breaker. The objective of the test is to identify how the system operates under various levels of current load.
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Product
Single-Phase Static Switches
ISSF COMPACT
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ISSF 'COMPACT' series circuit breakers are electrical devices used to interrupt or connect the flow of current in an electrical circuit. They are designed to provide high reliability and protection in a compact size. They overcome the limitations of electromechanical switches in many difficult and demanding applications, such as the control of high-power motors, transformers, tungsten lamps, heating elements, and electric ovens.
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Product
Multiple Channel Burn In Power Supply
MCPS
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The most important features of this burn in power supply is its ability to hold a constant output for each channel even in the event that a unit under test on one channel may short and fail. Since each channel has it''s own transformer, no glitches or voltage spikes can get into any of the other channels. This image shows the results as the second channel from the left is shorted with a small wire and the circuit breaker pops out. Used for burn-in testing and other timed testing where power isolation is required. Very basic simple circuit, see schematic below. Cleans and frees up benchtops, burn in racks and work space clutter. Available in benchtop or rackmount.
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Product
Loop Meter
MZC-310S
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The MZC-310S is a professional portable meter for testing electrical installations with over-current circuit breakers. The instrument measures short-circuit L-PE, L-N and L-L loop and prospective short-circuit loop current. A measurements can be done either with low testing current (up to 42A) with 2-pole method or high testing current (up to 280A) with 4-pole method that enables measurements with very high accuracy and resolution.
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Product
Dielectric Oil Testers
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Electrical insulation oils form the critical insulation medium for many of today’s electrical apparatus, such as transformers, tap-changers, circuit breakers, cables, bucket trucks etc.
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Product
Digital Circuit Breaker Analyzer
CT-8000 S3
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The CT-8000 S3 is Vanguard’s fourth generation EHV circuit breaker analyzer. The CT-8000 S3 is available with 3 (part number 9103-UC) or 6 contact timing channels (part number 9104-UC). The CT-8000 S3 can fully analyze a circuit breaker’s performance by measuring the main contact and resistor contact time, stroke, velocity, over-travel, bounce back and contact wipes. Also, an outstanding feature of the CT-8000 S3 is the ability to perform dynamic resistance tests on circuit breaker contacts.
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Product
ST Fully-auto BDV Dielectric Oil Tester Set
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Chongqing Assen Power Equipment Co., Ltd
ST BDV Dielectric Oil Tester is ideal for speedy and accurate testing of dielectric strength of transformer and circuit breaker oil under-test room condition in accordance with international standard.
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Product
Stationary Circuit Breaker Testing
ACTAS L260
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High-precision test system for function tests on various types of switchgear device, including circuit breakers, disconnectors or earthing switches, regardless of the type of drive unit.The inputs and outputs are connected flexibly via a terminal strip, making the test system particularly suitable for use in development and laboratory environments as well as in production environments.
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Product
Earth Leakage Circuit Breakers
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Mitsubishi Electric Automation, Inc
Like molded case circuit breakers, these circuit breakers are utilized to open/close low-voltage circuits and protect wiring by automatically closing circuits when they''re overloaded or if a short-circuit occurs. We offer a comprehensive range of circuit breakers that provide superior performance in electrical protection, isolation and power distribution applications. Our circuit breaker products comply with various standards such as JIS, IEC, EN, GB and UL/CSA, and with easy to install accesories, the Mitsubishi Electric circuit breakers are "user-friendly" and ensure the best solution for virtually every application.
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Product
Adjustable Test Stab Set
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The ETI adjustable test stab set may be used with your high-current circuit breaker testers to maximize efficiency and convenience for testing multiple breakers. Our stab system allows your technicians to test breakers in-place and avoid jacking breakers up or down for testing. By combining mobility and flexibility into one simple system, this stab set is a proven improvement over conventional designs. The components in the adjustable stab set are made of 120 pounds of 110 copper.
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Product
Ground Grid Tester
GGT Series
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The GGT500 ground grid integrity tester is designed for inspection of the substation ground grid. It can also be used as a portable micro-ohmmeter with Both Sides Grounded and Remote Control functionalities. It is intended to inspection the conditions of a grounding system beneath substations, testing of medium- and high-voltage circuit breakers, disconnecting switches, high-current bus bar joints, cable splices, and different high-current links.In the United States when inspecting the quality of the grounding systems beneath a substation, the proper procedure is to inject 300 A DC during a time period of 60 s. This is what the GGT500 will do, and in that time period, the current path and voltage drop are checked. Also acting as a micro-ohmmeter, the GGT500 can test low resistance values by producing high test currents of up to 500 A.The instrument is placed in an unbreakable, plastic case with IP67 protective rating (with closed lid). Although very portable and lightweight, micro-ohmmeters have very high output power capabilities. High output voltage enables a wider measurement range at higher test currents, as well as the use of thinner/longer test cables. GGT500 ground grid integrity tester generates a true DC ripple-free (less than 1 % ripple) current with automatically regulated test ramps. This significantly decreases magnetic transients and ensures great accuracy.When used for testing in Both Sides Grounded conditions, a special current clamp powered from the ground grid integrity tester is used for measuring a current through groundings. If even a higher safety level is required, the remote control feature enables the operator to perform measurements from a distant location, away from the instrument and test object.
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Product
Digital Earth Resistance Testers
ST-1520
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Capable of measuring earth voltage.2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.Auto power off function.The timer operates automatically for approximately three to five minutes when the "push button switch" and "timer on button" are pressed together.
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Product
Voltage & Continuity
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A voltage continuity tester is another way to determine if a circuit breaker needs to be replaced.
