Breaker
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Product
Power Factor RLC Load
3282（280V,1875W / 3700VA ）
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3282 power Factor RLC Load built-in 16-bit A/D and DSP precision measurement circuit, provides accurate measurements, measurement items have Vrms, Arms, Watt, VA, CF, PF, THD, VTHD, ITHD, Ipeak, Amax, Amin, Vmax, and Vmin. In addition to these measurement functions, it also provides time measurement，products such as UPS, fuses and circuit breakers etc. trip or blow time and transfer time for Off-line UPS
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Product
Relay Test Equipment
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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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Product
Serial AC Power Sequencer
90-200-001
AC Power Sequencer
Each power outlet can be programmed to switched on in sequence with a specific timing delay. The delay can be staggered to ensure that order dependent systems - like PXI - can be switched on and off in an orderly way with just one operation. A staggered start up also limits the inrush current associated with the powering up of equipment, including earth current inrush, placing less stress on cabling and leakage breakers. Power on or off instructions can be initiated from either the front panel switch or via the serial interface.
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Product
Circuit Breaker Test System
AutoScan
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AutoScan Circuit Breaker Test System is used for performing routine tests on circuit breakers and various other types of switchgear. This test system is designed to test vacuum circuit breakers, high voltage circuit breakers, and extra high voltage circuit breakers as per suitable standards.
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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.
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Product
HV AC Test Set
SERIES S400 TYPE RX I O/ I OACP
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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.
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Product
Resistance Measurement
PROMET
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High-precision micro-ohm measuring systems with adjustable DC test current for determining resistances on circuit breakers or inductive loads such as transformers, for example. The high-precision ohm meters of the PROMET series are used to determine very low electrical resistances in the µΩ range. The adjustable test current of up to 600 A in combination with a four-wire measuring method delivers measurement results which meet stringent accuracy requirements. State-of-the-art power electronics coupled with a robust design guarantee excellent reliability for use as a portable device in switching stations and industrial environments. Typical applications include determining the contact resistance of switchgear devices and determining the resistance on inductive loads such as transformers.
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Product
Low-Voltage Arrester Analyzer
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Weshine Electric Manufacturing Co., Ltd
1. 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.
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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
AC / DC Electronic Loads – Benchtop Testing to Automated Test Systems
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Chroma Systems Solutions, Inc.
Chroma is the global leader in Electronic Load manufacturing. Chroma’s AC Electronic Loads are designed for testing uninterruptible power supplies(UPS), Off-Grid Inverters, AC sources, and other power devices such as switches, circuit breakers, fuses and connectors. Chroma’s DC Electronic Loads are used for power testing in all markets including automatic test systems, LED, power supply testing, battery testing, and fuel cell testing. Chroma loads can do it all including full current down to 0.4VDC, CZ mode, user defined waveforms, timing measurements, and 3 current ranges per load. Chroma’s electronic loads come standard with either USB or RS232 ports for control and can be configured for GPIB (IEEE-488) control as well.
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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
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
10A DIGITAL MICRO-OHMMETER
MPK-2000e
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The MPK-2000e digital very low resistance ohmmeter is a portable, microprocessor controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1mA up to 10A. It uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances.
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Product
Fault Locator
WEEZAP
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WEEZAP is an LV vacuum circuit breaker combined with advanced measurement and protection capability.
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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
Environmental Chamber
REXMED REC-200
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MOD. REC-200, 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: 1.5KW X 2pcs, Humidity heater: 2.5KW 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: 1,892 Watts, 6,455 BTU/hr, 1,630 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: L50 X W60 X H75cm, Capacity: 225L, 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
Power Supplies
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AC and DC power supplies are used for providing the power required for energising the trip and close coils of the breaker and for running the spring charging motor. The appropriate AC or DC configuration of the power supplies can be selected, depending on the DUT specifications of the manufacturer. Dual-mode AC/DC power supplies capable of providing AC and DC outputs from the same power supply are also available, if required by the user.
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Product
Micro-Ohmmeters
RMO-G Series
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The RMO-G is a portable micro-ohmmeter designed for contact resistance measurement of non-inductive test objects and applications with increased safety requirement. It tests medium and high-voltage circuit breakers, disconnecting switches, high-current bus bar joints, cable splices, and different high-current links. Due to its Both Sides Grounded and Remote Control functionalities, the instrument accurately measures even in the most demanding environments, providing additional safety to testing personnel.The RMO800G is the most powerful portable micro-ohmmeter on the market with 800 A output current. RMO200G is our best seller in the USA. A user can choose the appropriate model depending on the output current requirement, from 100 A (RMO100G) to 800 A (RMO800G).We use an unbreakable plastic case with IP67 protective rating (with closed lid) for instruments’ housing. Although very portable and lightweight, RMO-G micro-ohmmeters have very high output power capabilities. High output voltage enables a wider measurement range at higher test currents. Consequently, it enables the usage of thinner/longer test cables. RMO-G generates a true DC ripple-free (less than 1 % ripple) current with automatically regulated test ramps. During the testing, it increases current before measuring and decreases current after the measurement. This significantly decreases magnetic transients and ensures great accuracy.Special current clamps measure a current through groundings when the instrument tests in Both Sides Grounded conditions. The instrument itself powers these clamps. If even higher safety level is required, the Remote Control feature enables the operator to perform measurements from distant locations.RMO-G instruments can store up to 500 measurements in internal memory. Also, they have a built-in thermal printer and USB flash drive available as an option. An additional option is the built-in High Precision module suitable for measurement of very low resistance, in the range from 1 to 30 µΩ, with 0,01 µΩ resolution.Our free DV Win software communicates with the RMO-G micro-ohmmeters via USB or RS232 interface. It allows a user to run the test remotely from a PC. Also, a user can download test results, analyze and generate fully configurable test reports through the software.
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Product
Contact Resistance Meter
CRM 100C
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CRM 100C directly measures resistance values with DC current injection under live switchyard conditions.The CRM 100C is specially designed to reliably measure contact resistance of Circuit Breakers, Isolators, Bus Bar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards. It can also be used for testing cables, graphite bars etc.
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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
Current Sources
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Innovar Current Sources are the standard in the circuit breaker industry. Our Current Sources supply regulated current from 1 amp to 100,000 amps with incredible accuracy, along with providing a full set of features that is unmatched by any other Current Source in the market.
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Product
Circuit Breakers for Panelboard and Controlboard
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Mitsubishi Electric Automation, Inc
Series of MCCB and ELCB that provide maximum protection in a small frame size. A complete product offering for equipment control cabinets and distribution panels.
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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
Circuit Breaker Finder
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Precision Mastech Enterprises Co.
A two-part tool (transmitter and receiver) that helps you quickly identify which circuit breaker controls a specific electrical outlet or light fixture, especially useful in unlabeled panels.
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Product
6 Contacts- Circuit Breaker Analyzer
CB14
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The CB14 is a 6 contacts circuit breaker analyzer designed to perform Timing, Motion as well as Static & Dynamic Resistance Measurement (DRM) in a single test. It also includes 3 multifunction analog inputs.
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Product
Dynamic Contact Resistance Meter
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Dynamic contact resistance measurements are necessary to understand the condition of the arcing contacts of the circuit breaker. Static contact resistance measurements do not give us information related to erosion of arcing contact, misalignments of the contact, and damages to the driving mechanism.
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Product
Powerful AC/DC Power Supply For Testing Circuit Breakers
POB35AD
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POB35AD is a power supply unit employing the latest power electronics technology. POB35AD generates ripple free DC-voltage and it is developed for regular maintenance tests of power circuit breakers. It eliminates use of stationary batteries during testing. Output voltage is selectable from 10 to 250V AC/300VDC. The test set is a powerful and versatile unit with possibility to generate up to 30A.
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Product
SF6 Leak Detector
KVWG-II
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KV Hipot Power Test Equipment Co.,Ltd
SF6 Leak Detector can quickly and accurately quantitatively detect the leak points of SF6 circuit breakers, GIS and annual leak rate.
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Product
DC Hipot Test Set
KVZG
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KV Hipot Power Test Equipment Co.,Ltd
DC Hipot Tester is applied to measure output voltage and leakage current for zinc oxide arresters, magnetic blowing arresters, power cables, generators, transformers, circuit breakers and other equipment.
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Product
Handheld Circuit Breaker And Timer Analyser
CAT-H Series
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The operation of the breaker can be initiated in different ways (e.g. from a control room, by a local breaker or externally by a test device) depending on the test conditions. Various time measurement triggers are available to record a measurement under a different test condition:*Coil control channel*Continuous current clamping channel*DC voltage channel
