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Breaker
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Transfer Switches
Q Series
The Pro/Tran Q Series features 1-inch interchangeable circuit breakers. A 30A double-pole circuit breaker and a 20A double-pole circuit breaker, to handle heavier loads on the generator side, are included on each model. The balance of the circuit breakers are single-pole 15A.
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Power Distributor
AV-P3040
"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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Digital Circuit Breaker Analyzer
CT-3500 S2
The CT-3500 S2 is Vanguard’s second generation, stand-alone, digital, microprocessor-controlled, circuit-breaker timer. It measures the elapsed time from the instant a breaker coil is energized to the instant of opening or closing of a circuit-breaker’s dry contacts. In addition to timing a breaker’s contact response time, the CT-3500 S2 can also time relays or other switching functions that use an initiating trigger voltage (24-300 Volts DC or AC). The timer-triggering voltage starts three independent electronic timers. Each timer is individually stopped by its respective dry-contact closing or opening. The CT-3500 can fully analyze the timing of all circuit breaker operations (Open, Close, Open – Close, and Close – Open). Timing results are displayed in milli-seconds and cycles on the unit’s back-lit LCD screen and can be printed on the built-in 2.5-inch wide thermal printer.
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Resistance Measurement
PROMET
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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Low Resistance Or Continuity Testing
From Megger, these highly accurate, easy to operate instruments 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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SF6 Decomposition Products Detector
JH4000A-4
Xiamen Jiahua Electrical Technology Co.,Ltd
JH4000A-4 SF6 Electrical Equipment Decomposition Products Detector is a high precision, intelligent and portable device, able to make judgment rapidly and correctly based on the content of main decomposition products of insulation materials inside the SF6 electrical equipment like SF6 circuit breaker, instrument transformer, GIS and transformer. It detects SO2+SOF2, H2S, CO and HF. It is reliable, accurate and stable. Inspected by authorities such as the National Institute of Metrology, the device, having excellent performance, complies with relevant international and national standards. It is a product recommended for use by the State Power Grid Company. Decomposition products detection provides reliable evidence for the internal fault diagnosis and it is an effective measure for preventive and corrective maintenance.
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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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Enlarge Environmental Chamber
REXMED REC-450
MOD. REC-450, 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: -40˚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: -40˚C~100˚C within 45 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 3,644 Watts, 12,433 BTU/hr, 3,140 Kcal/hr, Cool down transition time: 20˚C~-40˚C within 50 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: L60 X W80 X H85cm, Capacity: 408L, 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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Power Factor RLC Load
3282（280V,1875W / 3700VA ）
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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Electric Shock Protection Analysis
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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5 A portable digital micro-ohmmeter
MPK-254
The MPK-254 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 1 mA up to 5 A.
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Circuit Break Timer Test Set
PME-500-TR
Before developing the system or equipment for the testing of a circuit break timer for distribution, the application information was obtained by consulting various users of this type of timer for circuit breaker. The customers consulted were from private service and maintenance companies, large industries, and of course from the Utility companies. It is essential to receive first hand information of the actual requirements and needs of each of these customers who are making these types of tests and then make a detailed study of the various alternatives offered by different manufactures of this type of circuit breaker timer.
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3 Wire (Digital) Earth Resistance Tester
2720 ER
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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Digital Earth Resistance Tester
8PK-ST1520
Capable of measuring earth voltage (Vac.) 2mA measuring current permits earth resistance to test without tripping earth leakage current breakers in the circuit. Battery operated. Auto power off function. Data hold function. Small and light weight.
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3 Wire (Digital) Earth Resistance Tester
1820 ER
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.● Low battery indication.● Calibration performed with supplied test leads.
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Wire Systems Analyzer
Console Test Systems (CTS)
Wire Systems Analyzer Commercial Roll around detects and locates faults and detects degradation in electrical interconnect systems ranging from simple to complex. Used to verify the operation of relays, circuit breakers, indicators, switches, diodes, transformers, 1553 couplers, etc.
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10A DIGITAL MICRO-OHMMETER
MPK-2000e
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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3 Wire (Digital) Earth Resistance Tester
2120 ER
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.● 0Ω adjustment.● Battery operated.● Data hold function.● Low battery indication.● Calibration performed with supplied test leads.
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3 Wire (Digital) Earth Resistance Tester
ST-1520
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.● Auto power off function.● The timer operates automatically for about three to five minutes when the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON" are pressed together. This will keep test "ON" for the duration of the timer.● Timer for test function (count 3-5 minutes).● Battery operated.● Data hold function.● Small and light weight.● Calibration performed with supplied test leads.
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Short Circuit Loop Impedance Meter
AMZC-305
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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Primary Current Injection Test Sets
Our primary current injection test sets cover from 750A through to 6000A. Available in single phase, testing applications include testing and timing of under and over current relays, circuit breakers and CT ratio testing.
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Protective Bonding Testers
RMO-E Series
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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Circuit Breaker Analysis Systems
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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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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Circuit Breaker Analyzers & Timers
CAT circuit breaker analyzers and timers are advanced standalone or a PC controlled instruments for circuit breaker maintenance. Typical application areas of CAT instruments are medium and high voltage substations at electric power generation, transmission, and factories of switchgear. Also, industrial environments and electric power distribution are suitable application areas for these circuit breaker testing instruments.DV Power CAT circuit breaker testing instruments are portable and lightweight. They are designed for performing mechanical operations intended for circuit breakers testing according to standards IEC 62271-100 and IEEE C37.09.These instruments measure:the timing of main contacts, pre-insertion resistor contacts, auxiliary contacts operations,coil currents,motion parameters,voltage recording,main circuit resistance,arcing contacts wipe,and any relevant analog signal.Motion transducer channels provide measuring a displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time, and average velocity. Even more, CAT circuit breaker analyzer optionally has a built-in micro-ohmmeter. Hence, it provides the main circuit resistance measurement and dynamic resistance measurement. Dynamic resistance measurement is an effective method for arcing contacts condition assessment.
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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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Primary Test Equipment
LET-1000-RD
It allows to perform with sufficient power, all the primary current injections to test the proper function and wiring of all the elements that compose the protection and measuring section in a substation.The regulation system is based on a continuously variable autotransformer (Variac) that supplies to a power transformer that delivers the high current outputs and isolate the main supply from the load. A built-in ammeter and a timer gives the information about the current value and the operation time of the relay or breaker under test.
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3 Phase Relay Test Set
This is a portable Relay Testing Set suitable for testing different types like over current, earth leakage relays, circuit breakers of 1A – 50A rating etc. All the components are assembled and enclosed with a portable air cooled M.S.cabinet.
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Voltage Tester
PeakTech Prüf- und Messtechnik GmbH
Uses voltage detection technology for the detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires.
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3-Phase AC Voltage Transducer
ENVIROMUX-PT3-600
Monitors and reports voltage of any 3 phase circuit. Remotely detect blown fuses or tripped circuit breakers. Three 600 VAC inputs, three 4-20 mA outputs. Inputs and outputs isolated from one another. Frequency: 50/60Hz. Maximum primary current: 600 volts. Accuracy: ±0.25% F.S. @60Hz. Output: 4-20 mA. "Zero" adjustment for accurate 0 VAC reading, and "Calibration" adjustment for frequency and voltage level. Powered by the ENVIROMUX-S420MA-24V. Regulatory approvals: UL, CUL, CE. Requires two ENVIROMUX-S420MA-24V to monitor three phases. Caution: installation should be performed by qualified electricians only. Make sure electrical service is disconnected before making any electrical connections.
