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Circuit Breaker Testing
Weshine Electric Manufacturing Co., Ltd
Time measurement: 12 fracture intrinsic points, closing time, with the same period, phase with the same period.2. Reclosing measurement: each fracture closing - minute, minute - closing, minute - closing - minute process time, one minute time,one closing time, two closing time, gold short time, no current value.3. Bounce measurement: closing bounce time, bounce times, bounce waveform of each fracture, rebound amplitude of each fracture.
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Circuit Breaker Test Systems
Crest has over a decade of experience of designing and manufacturing test systems for testing all the different kinds of switchgear and controlgear.
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Switchgear Test Systems / Circuit Breaker Testing
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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Circuit Breaker Analyzers & Timers
CAT Standard Series
Circuit breakers are being tested during manufacturing, commissioning or maintenance stages. The most basic test requires timing measurement using circuit breaker timer. Their primary role is timing and motion measurement of medium and high voltage circuit breakers. Devices from CAT Standard series have suitable application in:electric power generation,distribution system,part of the electric power transmission system,contractors testing,and industrial environments.CAT Standard series meets the requirements of an easy to use circuit breaker timer and analyzer with an attractive price. Furthermore, they are portable and lightweight (weighs only up to 7 kg). Finally, the plastic case is unbreakable and has IP67 protective rating when the lid is closed.CAT Standard series includes five models:Three circuit breaker timers – CAT03, CAT31, and CAT61Two circuit breaker analyzers – CAT34 and CAT64CAT03 is a basic model intended only for timing measurement of main contact operations on the circuit breaker with one break per phase. Unlike CAT03, CAT31 has the possibility of circuit breaker operation initiation, coil current measurement, and auxiliary contact timing measurement. CAT61 differs in comparison to CAT31 by its ability to measure up to two breaks per phase.CAT34 and CAT64 are more advanced compared to CAT31 and CAT61, respectively, since they have additional analog channels. Also, they have the possibility of a travel curve recording.A user can download the test results to a USB memory stick or save it to internal memory. The CAT Standard series internal memory can store up to 500 test results (numerical and graphical data). Optional thermal printer prints test results in tabular and graphical form on 80 mm (3.15 inch) paper rolls. CAT Standard series instruments are compatible with DV-Win software. It provides full control of all CAT functions from a PC, as well as acquisition and analysis of test results.
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Circuit Breaker Timer
* Micro - Controller based technology* Very Compact and lightweight* Very accurate measurements* Available with built - in thermal printer or RS 232 interface* Available in bench top and industrial suit case models.* Economical
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250 A Molded Case Circuit Breaker Tester
MCCB-250
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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Circuit Breaker (Switch) Test Instruments
Wuhan Huatian Electric Power Automation Co., Ltd.
Circuit Breaker (Switch) Test Instruments by HVTEST
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Circuit Breaker Test System
AutoScan
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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PC Based High Current Test Set for Circuit Breakers and Temperature Rise Test Equipment
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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Multiple Channel Burn In Power Supply
MCPS
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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Circuit Breaker Test Equipment
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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Switchgear Testing Solutions
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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Listed Circuit Breakers
Mitsubishi Electric Automation, Inc
To meet the demands of the U.S. and Canadian markets, the UL listed MCCB and ELCB products are compliant to UL489 and CSA C22.2 No.5-02 This range of breakers series offers a standard and high performance protection up to 630 amps and are easily installed in the field accesories.
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Automatic Circuit Breaker Timer Kit With Printer
NMC OFFERS FULLY AUTOMATIC CIRCUIT BREAKER TIMER KIT WITH IN BUILT PRINTER AND COMPUTER INTERFACE.
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Micro-Ohmmeters
RMO-G Series
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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Oil Test Set
We are the most reliable manufacturer and exporter of Oil Test Set that is ideal for testing of Breakdown / Withstand Test of Transformer and Circuit Breaker Oil. This test set is manufactured using premium quality raw material under the supervision of versed professionals. Moreover, the offered test set is checked by our quality inspectors on various parameters to ensure its flawlessness at clients' end. Our valuable clients can avail this Oil Test Set from us at competitive prices.
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HV High Performance Circuit Breaker Analyzer
CBV-19
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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Panel Meter Calibrator
1040C/CU
Calibrate panel meters, transducers, circuit breakers and relay units with Model 1040C, a portable, field-ready unit featuring eight key calibration functions.
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Circuit Breaker Monitoring
Circuit Breaker monitoring for all parameters required to accurately monitor the overall health and performance of circuit breakers
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Circuit Breaker Test System
TDR900
It operates and records a circuit breaker’s contact timing, motion, velocity, main contact engagement & synchronization, trip and close coil initiation and currents.
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Contact Resistance Meter
CRM 200B
CRM 200B directly measures micro-ohm values at 100 Amps DC under live switchyard conditions.CRM 200B is specially designed to reliably measure contact resistance of circuit breakers, isolators, busbar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards upto 765 kV.
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Turn-Key Short Circuit Laboratories
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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28 Days Test Bench (Single Phase & Three Phase)
The SCR Elektroniks 3 station MCB 28 Days and Temperature Rise Test Bench is economically designed to verify the 28 Days Test (21 hr ON, 3 hr OFF Test) as per clause 9.9 of IEC 60898-1 and Temperature Rise of the parts of a Circuit Breaker specified in Table 6 of clause 8.4.1 measured under the conditions specified in clause 9.8.2 of IEC 60898-1.
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Loop Meter
MZC-310S
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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Air Core Current Limiting Reactors
Current Limiting Reactor (CLR) is one of the most effective short circuit current limiting devices. It reduces stresses on busses, insulators, circuit breakers and other high voltage devices. Use of CLR is the most practical and economical approach at current limiting.
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Standalone Sporadic Event Recorder For Circuit Breakers
OTM-XB
The OTM-XB is the only standalone recorder to use the vibro-acoustic method that detects intermittent and sporadic operational faults on working circuit breakers.
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Primary Current Injection Testers
Primary current injection tests are carried out during commissioning and certification of various types of switchgear and current transformers (CT), as well as during diagnostics of grounding circuits, testing circuit breakers and other devices. Primary current injection testers can also be used for determining the terminals polarity and transformation ratio of current transformers, thermal testing of electrical devices, testing automatic reclosers and sectional disconnectors.
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Relay Test Equipment
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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TAN-DELTA AND RESISTIVITY TEST FOR INSULATING OIL
International Biological Laboratories
TDRNT02 measures dielectric parameters like D.C. resistivity, dielectric constant and loss factor of the insulating oil of transformers, circuit breakers etc.
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Circuit Breakers
As the premier supplier of power system components, Interpower has what you need to complete your projects, including circuit breakers. Interpower has no minimum order requirements, plus same day shipping is available on in-stock Interpower products.
