Earth Leakage Breaker
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Product
Earth Resistance Tester
2678
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Shenzhen Chuangxin Instruments Co., Ltd.
RK2678 series Earth Resistance Tester is used to measure the grounding resistance of the electrical equipments’ internal. It’s suitable for measuring the ground wire resistance of the various motors, electrical appliances, instruments and meters, household appliances and other equipment enclosure etc.
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Product
250 A Molded Case Circuit Breaker Tester
MCCB-250
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The Vanguard MCCB-250 is a programmable, high-current source designed specifically for testing molded-case circuit breakers, thermal magnetic and solid-state overload motor-protection relays.
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Product
Circuit Breaker Testing Equipment (SCOT Series)
SCOT MXP+
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SCOT MXP+ measures, displays and prints CLOSE, OPEN and CLOSE-OPEN time of 2 Main + 2 PIR contacts per pole, 3 poles simultaneously, ensuring measurement of 6 Main + 6 PIR contacts simultaneously. Ideally suitable for CBs having PIR contacts & multiple breaks per pole
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Product
Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ZCT-110
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for low leakage current measurements of less than 1mA.*Suitable for low current measurements of terminal feeder.*High sensitivity and least affection from external magnetic 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
Earth resistance meters
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The PROMAX earth meters guarantee the proper operation of industrial and home electrical circuits.
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Product
Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ALCL-40D
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for micro ampere current measurements.*Super high accurate sprit type ZCT sensor.*High sensitivity and least affection from external magnetic field. (less than 10μA for 400A nearby conductor)*For leakage current measurements of arrester.*Stable measurements under high electric field and strong magnetic field.
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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
AC Leakage Clamp Meter
SK-7820/SK-7825
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Wide range from 40mA to 100A AC,Conductor dia. : φ24mm max (SK-7820), φ40mm max (SK-7825)AC voltage measurement.Vibration alert comparator.(The function to show the comparator result by buzzer and vibration which is convenient innoisy surroundings.)
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Product
High Speed Response, High Accuracy DC Leakage Current Sensor
DCZCT-20CDHL
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Low DC current measurements.*DC1mA～200mA*High accuracy.*±1%F.S ±10mV*Least influence of magnetization.*Less than DC1mA in current level*Convenient +5V single polarity power supply.*Reference voltage (Vref) terminal is equipped.
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Product
Locomotive Circuit Breaker Analyser
CBScan Locomotive Circuit Breaker
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CBScan Locomotive Circuit Breaker Analyser is a compact and portable analyser used for testing 25 kV medium voltage circuit breakers that are used in electric locomotives for protection from the frequently occurring short-circuits in the overhead catenary system. The analyser is ideal for railway yards for performing periodic maintenance checks.
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Product
Through Hole type DC Current Sensor／for DC Leakage Current Measurements
DCZCT-45NK
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*DC earth fault measurement*DC leakage current measurement*Least affection from the magnetization of core and temperature fluctuation*Convenient ＋24V single polarity power supply
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Product
Circuit Breaker Test Equipment
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DV Power has released a new generation of circuit breaker test equipment for condition assessment of medium and high voltage circuit breakers.Field-portable instruments with standalone or PC controlled functionality, allow performing various tests during circuit breaker manufacturing, commissioning and maintenance stages.Applications supported by the DV Power test equipment include measurements of:Contact resistanceDRM (dynamic resistance measurement)Coil resistance and coil current (IEC 62271-100)Mechanism charging time (IEC 62271-100)Minimum trip voltage (IEC 56, ANSI C37.09)Undervoltage release (IEC 60694)The timing of a circuit breaker’s main, auxiliary and pre-insertion contactsSynchronization between the contactsMotion and velocity“First trip” testThe essential part of a circuit breaker condition assessment is the ability to compare the latest test results with the previous testing. Accordingly, our instruments store measured values and compare them to a manufacturer’s limits. Also, a fingerprint obtained in this way can be used at a later stage as a reference during subsequent measurements. In order to obtain an accurate comparison, the tests need to be performed using identical test parameters. Consequently, any deviation and change in the test results may indicate the circuit breaker condition deterioration. Even more, to overcome this issue, DV-Win enables test plans and graph overlay features.Finally, as a final result of a circuit breaker maintenance process, the DV-Win provides analytical tools and customized report creations.
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Product
Clamp type DC Current Sensor／for DC Leakage Current Measurements
DCZCT-110S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Compact size, General purpose*DC leakage current measurements
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Product
Through Hole type DC Current Sensor／for DC Leakage Current Measurements
DCZCT-20M
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*DC earth fault measurement for solar power system*Least affection from the magnetization of core and temperature fluctuation*DC leakage current measurements*Current measurements for small DC motor*Convenient ＋5V single polarity power supply
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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
Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ZCT-22
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for leakage current measurements*Ultra compact size*AC 1mA～100A
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Product
Capacitor Leakage Current/IR Meter
Chroma 11200
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Chroma Systems Solutions, Inc.
The 11200 Capacitor Leakage Current / IR Meter is mainly used for electrolytic capacitor leakage current testing and aluminum-foil withstand voltage testing (EIAJ RC-2364A). The 11200 can also be used for active voltage checking or leakage current testing of absorber, Zener diode, and Neon lamp etc. With the standard RS232 interface, optional GPIB & Handler interfaces, high speed and stable measurement capabilities, the Chroma 11200 can be used for both component evaluation on the production line and for fundamental leakage current or IR testing for bench top applications.
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Product
Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ZCT-110S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for low leakage current measurements of less than 1mA.*Suitable for low current measurements of terminal feeder.*High sensitivity and least affection from external magnetic field.
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Product
AC Leakage Current Tester
229-2
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Testing for dangerous small leakage currents is easy with the Simpson Model 229-2 Leakage Current Tester. For use in appliance field service, in the lab, or in production, the 229-2 approximates the human threshold of perception in detecting hazardous AC leakage current. The 229-2 comes with test leads with alligator clips, manual and batteries.
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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
DC Leakage Current Monitor
MDLA-100
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MULTI MEASURING INSTRUMENTS Co., Ltd.
This DC Leakage Current Monitor constantly observes leakage current of DC circuit like as PV generation system, etc. and lights up the warning lamp with signal output, when the leakage current exceeds the setting value.
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Product
Multifunction Tester(Insulation & Earth restistance)(LCD Display)
9000 MF
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Standard Electric Works Co., Ltd
● 9000 MF multi-function tester is a combination of insulation tester and earth resistance tester● Insulation output voltage : 50V, 100V, 125V, 250V, 500V, 1000V● 1mA test current on insulation test at nominal voltage● Auto-detection AC/DC voltmeter● Continuity short-circuit current > 200mA● Continuity open circuit voltage > 4.1V● PI and DAR indication● Maximum insulation range 8GΩ ( 8000MΩ ) at 1000V● Auto ranging on all insulation ranges● Continuity range : 2000Ω and 200.0Ω (auto ranging )● Auto power off● Test frequency of earth resistance measurement : 128 Hz● Earth resistance measurement for 3 ranges : 40Ω / 400Ω / 4kΩ● Earth resistance resolution : 0.01Ω / 0.1Ω / 1Ω● Earth voltage measurement : 400V● Auto-null ( Relative mode ) function● Backlight function● Low battery
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Product
Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ZCT-18S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for low leakage current measurements of less than 1mA.*Ultra compact size with 18mmφ jaw opening capability.*High sensitivity and least affection from external magnetic field.
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Product
AC & DC Analog Leakage Meters
1807 TB
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Standard Electric Works Co., Ltd
● AC Voltage Input/output range： 100~240 Vac● Frequency： 50~60Hz● Current： 10A
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Product
4 Wire Earth Resistance & Resistivity Tester
4236 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.● Optical USB to RS-232 data transmission.● The stored data can be transferred to a PC.● 2 optical LEDs are built-in for data transfer.
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Product
Earth Resistance Testers
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Precision Mastech Enterprises Co.
Specialized instruments used to measure the effectiveness of grounding systems in electrical installations.
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Product
3 Wire (Digital) Earth Resistance Tester
4120 ER
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Standard Electric Works Co., Ltd
● Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● The test leads are supplied as standard accessories for simplified two-wire measuring system.● Battery operated.● Data hold function.● Battery test indication.● Calibration performed with supplied test leads.
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Product
Circuit Breaker Analyzers & Timers
CAT Advanced Series
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DV Power circuit breaker analyzer and timer utilizes the latest technological enhancements for safe and fast testing of circuit breakers. The sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.The CAT Advanced series are stand-alone or PC-controlled digital instruments for a circuit breaker testing. The timing channels record closing and an opening of the arcing, resistor, and auxiliary contacts. Also, the main contact channels can measure the resistance value of the pre-insertion resistors (if present in the circuit breaker).With CAT Advanced series instruments, it is possible to record graphs of open and close coil currents. Furthermore, it records displacements of the HV and MV circuit breaker moving parts. Test results can be saved via USB, PC or be printed via 112 mm (4.4 inches) thermal printer (optional accessory) in tabular and graphical form.A circuit breaker test consists of different operational modes and CAT Advanced series supports:Open (O)Close (C)Reclose (O-0,3s-C)Trip free (CO)O-0,3s-COOpen-Close (O-C)Close-Open (C-O)Open-Close-Open (O-C-O)First trip (O)Multiple operations, such as Open-Close and Open-Close-Open, can be initiated by using a predefined delay time or by sensing a breaker’s contact position.The auxiliary inputs are used to monitor dry and wet auxiliary contacts. The six coil control analog channels measure and record coil currents simultaneously (OPEN and CLOSE), up to 35 A AC/DC.The additional six voltage analog channels have four selectable voltage ranges available (±1 V, ±5 V, ±60 V and ±300 V AC/DC).A built-in micro-ohmmeter generates up to 500A true DC ripple-free current with an automatically regulated test ramp that provides performing static and dynamic contact resistance measurement.Three transducer channels provide a measuring displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time and average velocity. Also, a user can connect either an analog or a digital transducer to these universal channels.
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Product
Digital Earth Resistance Tester
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Wuhan Fanke Transformer Manufacture Co., LTD
Digital Earth Resistance Tester
