Breaker
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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
Power Distributor
AV-P3040
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"AV-P3040" can supply 40A (20A x 2). The power supply can be wired directly from the distribution board and equipped with two 20A breakers.
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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
24 V DC Power Supplies
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*Space-saving design*High power reserves*Low heating of the control cabinet*Low inrush current*Safe switch-off by circuit breakers in case of short circuit
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Product
Voltage Detectors
JSC-88AW
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The JSC-88AW is a very reliable way to know for sure whether or not there is voltage downstream from the switches or breakers during power-offs. It dramatically increases the safety of personnel assigned to maintenance work on electrical equipment powered by three-phase voltage. As long as voltage is present downstream of the breakers, one or more (LEDs) of the JSC-88AW will stay lit. A simple visual inspection tells you whether the electrical system is in “Zero Energy” mode. In addition, this new device has been improved to enable resistance to voltage spikes (transients).
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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.
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Product
Circuit Breaker Analyzer
CBA 2000
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CBA 2000 diagnostic system is designed to grant the highest accuracy while testing circuit breaker. It can perform static and dynamic contact resistance measurement and it’s a precise timing speed and motion analyzer. Circuit breaker timing test set CBA 2000 is the perfect solution when a complete and reliable diagnostics has to be performed on circuit breakers.
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Product
Circuit Breaker Analyzer
CBA 3000
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CBA 3000 allows any timing test, motion and speed analysis, multiple contemporary static and dynamic contact resistance measurements, both sides grounded (BSG) tests, undervoltage condition test and more. All these functions are integrated in a single lightweight test case without the need of connecting additional external modules.
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Product
Wire Trackers
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Used to locate wires and identify circuits and breakers without having to put unnecessary holes in walls or waste time guessing to find the correct wire in a bundle or run.
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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
Turn-Key Short Circuit Laboratories
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For low and medium voltage switchgear including :*Circuit breakers*Contactors*Disconnect switches*Fuses*Miniature circuit breakersApplied tests for low and medium voltage switchgear :*Dielectric withstand test*Impulse withstand test*Breaking capacity test*Mechanical life testElectrical life test*Over load performance test*Short circuit breaking capacity test**Short time short circuit impulse current test*Temperature rise test*Operation performance testTests for low & medium voltage panels :*Short time short circuit impulse current test*Dielectric test*Impulse withstand voltage test*Temperature rise test
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Product
Measuring Display Unit Breakers
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Mitsubishi Electric Automation, Inc
Measuring display units (MDU) are integrated with molded-case circuit breakers and earth leakage circuit breakers for measuring, displaying, and transmitting information on cable ways. This display unit closely monitors energy consumption by measuring current, voltage, power, electric energy, harmonic current, leakage current and power factor.
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Product
Circuit Testing & Tracing
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A versatile circuit tracer can do more than just help you locate the breaker that supplies a particular load. Breaker finders can also quickly identify and troubleshoot energized outlets. Circuit and wire tracing kits can trace energized or de-energized circuits without power interruption, locate individual wires in a bundle and find shorts and ground faults.
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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
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
External Load Module
ELM
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Circuit breakers are often overlooked during maintenance of electrical systems in aircraft, or often only verified for open and closed states. To test the true functional purpose of a circuit breaker it requires the application of current in excess of the rated trip value and then measure the time for the breaker to actually trip. This is the only way to verify that a circuit breaker will react as designed if an electrical failure occurs.
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Product
Non-Contact Voltage Tester
NCVT-1
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Non-contact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets, and wires.High intensity, bright green LED indicates the tester is operational and aids in illuminating the workspace.When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds.Discrete digitally controlled ON/OFF power button.Auto power-off feature conserves and extends battery life.Microprocessor controlled low-battery indicator and tester shutdown.CAT IV 1000 Volt safety rating provides expanded operation and protection.
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Product
Protective Bonding Testers
RMO-E Series
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The RMO-E instruments are designed and ideal for testing protective bonding (grounding) of equipment following the standard IEC 61010-1. Also, they can measure the resistance of high, middle and low voltage circuit breakers, high-current bus bar joints, cable splices, and welding joints. The instruments accurately measure not only in factory environments but also in high-induction fields and substations.Both models generate a true DC ripple-free (less than 1 %) current with automatically regulated test ramps. During a test, the protective bonding testers automatically generate increasing current before measuring and decreasing current after the measurement. Consequently, this significantly decreases magnetic transients and ensures great accuracy.These instruments can store up to 500 measurements in the internal memory and have a built-in thermal printer available as an option.DV Win software communicates with the RMO-E earth resistance meter via USB or RS232 interface. It allows a user to run the test remotely from PC, as well as to download test results, analyze and generate fully configurable test reports.The RMO-E series contains two models, RMO60E and RMO100E. The main difference between these two models is in the maximal test current:60 A DC for RMO60E100 A DC for RMO100E
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Product
Transformer Rectifier Assemblies
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Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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Product
Environmental Chamber
REXMED REC-280
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MOD. REC-280, 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: 2.3KW X 2pcs, Humidity heater: 4.5KW 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: L100 X W80 X H100cm, Capacity: 800L, 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
Short Circuit Loop Impedance Meter
AMZC-305
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Loop impedance measurement with resolution 0,01Ω ; Loop impedance measurement without tripping the circuit breaker > 30mA with resolution 0,01Ω (100...440V) ; Measurements possible in installations 110/190V, 115/200V, 127/220V, 220/380V, 230/400V, 240/415V, 290/500V and 400/690V (range 100...750V)
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Product
Circuit Breaker Tester
GDGK-307
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Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
1) Closing and opening time measurement of 12 channels2) Max difference of closing or opening time measurement of three phases3) C-O and O-C time measurement4) Rated operation sequence test5) Bounce time and frequency measurement of breaker closing6) Circuit breaker closing and opening speed measurement7) Travel-time, coil current-time curve of circuit breaker operation measurement8) Travel and clearance of circuit breaker measurement9) Variable DC circuit breaker operation power supply10) Closing arc resistance value and connected time measurement11) Closing time and opening time of graphite circuit breaker measurement12) Print test results by internal micro printers
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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 Finder Accessory Kit
69411
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For use with ET300 Digital Circuit Breaker Finder.Light socket adapter for finding the correct circuit of a lighting fixture.Alligator clip adapter enables use of on bare wires.
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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
Coil Analyzers & Power Supplies
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Coil analyzers and power supply units are portable and lightweight devices intended for use in harsh switchyard and industrial environments. The typical application is switchgear and circuit breaker testing when substation battery is not connected or available. An advantage over substation battery is enabled testing in under-voltage and over-voltage conditions. Furthermore, the stable voltage outputs with a very low ripple (<0,5%) enable an analysis of the coil and motor current graphs recorded with circuit breaker analyzers from different vendors.SAT40AD, POB30AD, and POB40AD are unique devices in the market due to their dual purpose:Power supply for coils and spring-charging motorsTesting circuit breaker’s coils, motor, and auxiliary circuitAll DV Power coil analyzers and power supply units have four separate outputs for opening and closing coils.SAT40AD has two powerful motor outputs (AC and DC) which can withstand up to 40 A inrush current.POB30AD and POB40AD have DC motor output rated up to 30 A and 40 A respectively. With the use of motor outputs, POB and SAT can also be used as a power source or a temporary battery charger.SAT40A II series instruments can be controlled via PC. The DV-Win application software is used to control both SAT and CAT (Circuit Breaker Analyzers & Timers) devices at the same time, making a unique test system for switchgear and circuit breaker testing.
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Product
Oil Test Set
7000
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Cambridge Instruments & Engineering Co.
Ideal for speedy and accurate testing of Breakdown / withstand test of transformer and circuit breaker oil, in accordancewith IS 6792 : 1992 for oil testing.
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Product
Circuit Breaker Testing
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HAOMAI Electric Test Equipment Co., Ltd.
Circuit Breaker Testing is utilised to test the operation of each switching systems and the programming of the entire tripping structure.
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Product
HV DC Test Set
RX30/4P
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K&S Engineering and Scientific Ltd
The output is continuously variable from zero to 10 kV by means of the panel mounted regulator. An output trip is fitted which operates when the output exceeds 25 mA switches off the test set and operates a neon overload indicator. Primary protection is provided by two panel mounted fuses. The output is protected by the output trip and a magnetic/hydraulic circuit breaker.
