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Product
Circuit Breaker Analyzer
CAT Standard Series
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The CAT Standard series circuit breaker analyzers & timers are stand-alone or a PC-controlled digital instruments for circuit breakers condition assessments. The timing channels record closing and opening of the arcing, resistor, and auxiliary contacts. CAT Standard series records graphs of both, trip and close coil currents and displacements of the HV and MV circuit breaker moving parts. The main contact channels can also measure the resistance value of the pre-insertion resistors (if present in the circuit breaker). Test results can be downloaded to a USB memory stick or saved to internal memory. The CAT Standard series internal memory can store up to 500 test results (numerical and graphical data). Test results can also be printed on the 80 mm (3.15 inch) thermal printer (optional accessory) in tabular and graphical form. CAT Standard series provides an easy selection of different operational modes:
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Product
Digital Circuit Breaker Finder
ET300
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Quickly, accurately, and automatically find the corresponding circuit breaker of any 120V standard outlet.Flashing arrow indicator for easy identification.Strong transmitter reaches distances up to 1,000 feet.90 - 120V operation.Microprocessor controlled for more reliable identification.Auto power-off feature saves battery life.Accessory kit available (Catalog No. 69411) includes light socket and alligator clip adapters.
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Product
Circuit Breaker Analyzer
CBA 1000
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CBA 1000 circuit breaker timing test equipment is a reliable and very accurate operating device for the maintenance and commissioning of circuit breakers in medium and high voltage substation. It can perform static and dynamic contact resistance measurement and it’s an accurate timing speed and motion analyzer.
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Product
Automatic Circuit Breaker Timer Kit With Printer
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NMC OFFERS FULLY AUTOMATIC CIRCUIT BREAKER TIMER KIT WITH IN BUILT PRINTER AND COMPUTER INTERFACE.
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Product
HV High Performance Circuit Breaker Analyzer
CBV-19
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We conceived the CBV-19 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
Portable Circuit Breaker Tester
PI-1600
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The PI-1600 Circuit Breaker Tester incorporates modular design and flexibility to provide unequaled capability in a portable package. The PI-1600 test set is two testers in one, incorporating the PI-800 and PI-AUX. The PI-800 section can be used alone, on 120 or 240 VAC supplies, generating continuous current of 400, 800, amps at 4.2 kVA, with peak output to over 10x. When configured for the PI-1600, the PI-AUX output unit is connected in series or parallel to the PI-800. The PI-AUX boosts total power to 9.8KVA, and allows testing of draw-out breakers and MCB’s to 1600 Amps. The units are housed in rugged interlocking suitcase-size enclosures. Each piece weighs no more than 125 pounds, allowing one-person hand truck mobility. Basic operation is very simple, and the proven MAC-21 control instrumentation provides optimal output control and measurement. The MAC-21 instrumentation is supplied in a separate rugged portable case, interlocks on top of the PI-800, and connects to a cable in the rear of the test set.
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Product
Circuit Breaker Contact Resistance Meters
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Vanguard Instruments Company, Inc.
The Vanguard Auto-Ohm 10 is a 10-ampere battery powered micro-ohmmeter designed for low-resistance-measuring applications such as the measurement of resistance in circuit breaker contacts, bushing contact joints, and welding joints. The unit is powered by four 3400mAh, 3.7Vdc Li-Ion rechargeable batteries. With these high capacity batteries, up to 2,900 tests per charge (10A/2 second duration) can be performed in the field.
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Product
Circuit Breaker Testing
ACTAS
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Portable and stationary test systems for performing fully automatic function tests on all types of switchgear devices, including the drive units of switch bays. ACTAS test systems provide precise information as to the condition of the chamber and drive unit without requiring them to be opened. The sheer number of parameters to be determined, the wide variety of different types of switchgear equipment in use and the harsh environmental conditions encountered during on-site tests place extreme demands on test equipment.
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Product
Transforming Analog Circuit Breaker Testers
MAC-21
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The MAC-21 uses proven microprocessor and A/D converter technology to provide real-time waveform analysis. This ensures accurate true-RMS readings of current pulses, even with DC offset and distortion, which are typical in primary injection testing. Intelligent threshold algorithms provide accurate trip time measurement. Integration of measurement and control functions allow advanced features such as preset on times, auto ranging, and optional printer or computer interface.
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Product
Circuit Breaker & Control Cabinet Simulator
SIM-CB6
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The SIM-CB6 is the circuit breaker simulator that will make you an expert in breaker testing. The SIM-CB6 enables you to simulate any type of circuit breaker (SF6, Air Blast, Oil, etc.) up to 6 contacts (2 contacts per phase), with or without closing/opening resistor contacts and control cabinets. This simulator will allow you to increase your knowledge on circuit breaker analyzer systems to ensure full efficiency once on the field.
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Product
Circuit Breaker Analyzers & Timers
CAT Handheld Series
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When it’s not practical to use conventional robust circuit breaker analyzers, a handheld circuit breaker analyzer and timer may come handy. DV Power has developed a unique CAT Handheld series. It is specially designed for testing of circuit breakers with one break per phase. Their compact and ergonomic design can provide a wide range of features and reliable operations in low, medium and high-voltage substations or in industrial environments.CAT Handheld series consists of two models, CAT-P and CAT-H. Both of them have a large (5,7 in) colored touch screen display. Because of that, test results are visible in dark places as well as in bright sunlight.Powerful internal Li-Ion battery of the instruments can last up to 8 hours of testing without recharging.CAT Handheld series records:main contacts operating times,contact synchronization,sequence time,a resistance of pre-insertion resistors,open and close coil currents,main contacts bounce time,auxiliary contact time,DC Voltage.Multiple operations, such as Open-Close and Open-Close-Open, can be initiated by using a predefined delay time or by triggering signal from current clamps connected to circuit breaker coil.CAT-H is capable of performing a coil control, while this feature is optional at CAT-P instrument. In contrast to CAT-H, CAT-P instrument can execute “First Trip” test.Both instruments display numerical and graphical results. Because of that, a user can easily overlay up to 4 records in the graphical form and make a quick on-site analysis of potential defects.A user can download test results to a PC via Bluetooth interface for more detailed analysis using DV Win software.
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Product
Circuit Breaker Endurance Test System
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Endurance testing involves operating – closing and opening – the circuit breaker repeatedly for a set number of cycles. This test is necessary to stabilize the circuit breaker mechanism and to identify “Early Infant Mortality” failures in the switchgear assembly.
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Product
Voltage Detectors
JSC
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The JSC family of devices provides a highly reliable way to determine if voltage is present downstream of the disconnector or circuit breaker knives during zero-energy shutdowns. They dramatically increase the safety of personnel performing maintenance on electrical equipment. When voltage is present downstream of the disconnector knives, one or more LEDs on the JSC-88A will remain illuminated. The JSC's compact design allows for direct installation on the disconnector door, starter, or control panel.
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Product
10 A True DC Micro-Ohmmeter
AUTO-OHM 10
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The Vanguard Auto-Ohm 10 is a 10-ampere battery powered micro-ohmmeter designed for low-resistance-measuring applications such as the measurement of resistance in circuit breaker contacts, bushing contact joints, and welding joints. The unit is powered by four 3400mAh, 3.7Vdc Li-Ion rechargeable batteries. With these high capacity batteries, up to 2,900 tests per charge (10A/2 second duration) can be performed in the field. The Auto-Ohm 10 features a built-in charger that can charge the batteries when the unit is not in use.
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Product
Low Resistance Ohmmeters
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Some times know as Ducter testers, these are highly accurate, easy to operate instruments that measure resistance with resolution as fine as 0.1 micro-ohm. Digital micro-ohmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 200 amps covering a multitude of applications that require precise low-resistance measurements.
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Product
Electric Shock Protection Analysis
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60364-4-41 StandardBS 7671 StandardEN 50122 StandardTN-C, TN-S, TN-C-S, TT & IT Earthing TypesElectric shock requirementsLoop impedance and current calculationTouch voltage calculation and evaluationCalculation considers resistance to ground / earthGround Fault Current Interrupter (GFCI) or Residual Current Circuit Breaker (RCCB) or Residual Current Detector (RCD) protectionReports in Crystal Reports and MS Excel
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Product
Switchgear Testing Solutions
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IES Systems is a world leader in the design and manufacturing of power switchgear test systems.*GFCI/AFCI Circuit Breaker Test Solutions*Medium Voltage Breaker Test Solutions*Residential Circuit Breaker Test Solutions*Molded Case Circuit Breaker Test Solutions*AIR Circuit Breaker Test Solutions*Vacuum Bottle Test Solutions
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Product
Dynamic Micro Ohm Meter
PRIME 200
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It is the only micro ohm meter in the market that integrates both the contact resistance and the dynamic resistance measurement (DRM) for cost-efficient condition evaluation of contacts in SF6 and vacuum type circuit breakers; PRIME is a high current micro-ohmmeter that provides true pure DC with smart control up to 200 A, a wide measurement range with high power, dual ground testing process, thermal printer, touch display, pre-defined test modes and automatic reporting.
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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
Portable AC/DC Power Supply
UPS S3
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The Vanguard UPS S3 is an AC/DC adjustable output power supply designed to operate substation circuit breakers. The UPS S3’s AC and DC voltage sources can supply up to 10 Amperes during the circuit breaker coil energization and circuit breaker charging motor operation. Powered by a single phase 90-120 Vac voltage source, the UPS S3 provides an isolated adjustable AC/DC voltage source. Output voltages are variable via the front panel control knob.
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Product
Intelligent Circuit Protection
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The Mors Smitt ‘Intelligent circuit protection system’ controls and monitors all AC and DC circuit breakers remotely and is capable of providing complete status of all MCB’s via display or through the Train Management System.
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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
Coil Testers & Power Supplies
POB Series
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Coil testers and power supply units, models POB30 and POB40 are ideal for commissioning and maintenance testing of circuit breakers. The station supply is not available. The POB series are power supply units implementing the latest power electronics technology. They are developed for use in switchyards, power and industrial environment. In addition to providing current and voltage for breaker testing, they can measure certain coil parameters.
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Product
Micro-Ohmmeters
RMO-A Series
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The RMO-A is a portable micro-ohmmeter designed for contact resistance measurements of switchgear during manufacturing, commissioning and maintenance stages. This micro-ohmmeter is widely used by medium and high-voltage circuit breakers manufacturers. Other typical applications are testing of disconnecting switches, high-current bus bar joints, cable splices, and different high-current links. It accurately measures not only in factory environments but also in high-induction fields and substationsThe RMO-A series contains 6 models, rated from 100 A (RMO100A) to 600 A (RMO600A). The RMO500A (formerly CPM500) is our best seller, with 500 A ripple-free current and weighs only 8 kg.Although placed in a very portable and lightweight metal housing, RMO-A micro-ohmmeters have very high output power capabilities. They can generate 600 A test current continuously for up to 20 s. You can test with current up to 100 A without rest time. High output voltage enables a wider measurement range at the highest test currents, as well as the use of thinner/longer test cables. For testing with 100 A, 20 m test leads can be provided with only 16 mm2 cross-section.RMO-A micro-ohmmeter generates a true DC ripple-free (less than 1 %) current with automatically regulated test ramps. During a test, the RMO-A ramps up with increasing current before measuring and decreasing current after the measurement. This significantly decreases magnetic transients and ensures great accuracy.An additional option is a built-in High Precision module suitable for measurement of very low resistances, ranges from 1 to 30 µΩ, with 0,01 µΩ resolution.These instruments can store up to 500 measurements in internal memory. A built-in thermal printer is available as an option.Our free DV Win software communicates with the RMO-A micro-ohmmeters via USB or RS232 interface. It allows you to run the test remotely from PC, as well as to download test results, analyze and generate fully configurable test reports.
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Product
Circuit Breaker Test System
TDR9100
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The Doble TDR9100 Circuit Breaker Analyzer is a state-of-the-art circuit breaker test set for testing all types of circuit breakers with efficient and accurate performance measurements.
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Product
Coil Analyzers
SAT Series
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The Coil Analyzers SAT30A and SAT40A are powerful, lightweight units ideal for testing of circuit breakers. Substation battery is not connected or available. The SAT series instruments are intended to supply circuit breaker coils and spring charging motors. They spring charging motors (SAT40A – AC and DC) as a part of commissioning and maintenance testing.
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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 Finder
6504
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Peaceful Thriving Enterprise Co Ltd
Circuit Breaker Finder is a multi-function circuit tracer/ identifier. Circuit Breaker Finder identifies circuit breakers without interrupting service.This device is formed by 1x Transmitter and 1x Receiver. There are 3 functions: (1) Socket Tester (Wire Mapping)(2) Circuit Tracing / Identifying(3) Non-Contact Voltage Detecting
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Product
Surge Arrester Testing
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Weshine Electric Manufacturing Co., Ltd
This instrument can be widely used in equipment maintenance of substations and power plants, and to measure insulation resistance, absorption ratio and polarization index of high-voltage electrical equipment such as transformers, reactors, capacitors, and circuit breakers. The leakage current of the low-voltage arrester of the power distribution cabinet is automatically tested.





























