Contact Resistance
opposition to the flow of heat or electricity within a connection.
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Product
Contact Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
The loop resistance tester is used to test the conductive loop resistance of various switchgear, and the test current shall not be less than 100A. Due to the oxidation of the contact surface, poor contact tightening and other reasons, the contact resistance increases. When a large current flows, the temperature of the contact point increases, which further accelerates the oxidation of the contact surface and further increases the contact resistance.
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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
Contact Resistance Meter
CRM 200B+
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CRM directly measures micro-ohm values at 200A DC under live EHV switchyard conditions quickly & accurately. It is specially designed to reliably measure micro-ohm contact resistances of Circuit Breakers, Isolators, Busbar joints, earth switch joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards up-to 765 kV. SCOPE’s ability to make electronics work in such environment enables CRM to measure mili-volts signal in the presence of kilo-volts noise.
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Product
Contact Resistance Test Sets
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When a high current passes through a pair of mechanically independent metallic contacts, the resistance must be as low as possible. An increase in resistance can lead to additional degradation, as I2R losses will cause local heating of the contact surfaces. Our range of micro-ohmmeters measure both steady state and dynamic low resistance values. With test currents up to 600A available, logging and trending are also available on some models. We ensure that our Contact Resistance tests sets are portable, making them suitable for field measurements. Our contact resistance testers’ portability makes them ideal for a vast range of resistance testing across the entire LV, MV HV and EHV spectrum.
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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
Contact Resistance Measurement System
CRMS
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The CRMS is a system designed to allow any user to measure the resistance of each set of relay contacts associated with the relay under test. The test system consists of a CONTACT RESISTANCE MEASUREMENT UNIT (CRMU), a MULTIPLE RELAY TEST RACK, as well as an interconnect CABLE ASSEMBLY. Either DC or AC energy to pick and drop relay coils under test for all contact measurements is supplied from the CRMU and easily interfaces with the Multiple Relay Test Rack. For additional and more thorough testing of relays an external relay tester can be interfaced to the Multiple Relay Test Rack to supply energy to the relay coil. It is recommended that the UTE Relay Tester With Timer/Counter (UTE Product # 15967-00) be utilized so the operator can take full advantage of the unique features it offers
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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
Contact Resistance Meter
CRM 100B+
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SCOPE introduces its next generation of hugely popular CRM series contact resistance meter, CRM100B+ in all new super light avatar, based on cutting edge ultra capacitor technology. CRM incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers.
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Product
Contact Resistance Tester
JYL
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As a high current passes through a pair of mechanically independent metallic contacts, the contact resistance must be as low as possible. Increasing the contact resistance of the contact often causes a large voltage drop on the contact, which reduces the input power of the load equipment. If the contact resistance of one or two contacts becomes large, the three-phase voltage of the load equipment will be unbalanced, causing phase loss operation.
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Product
Contact Resistance Measurement Kit
LRM-10
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The LRM-10 is a 10A micro-ohmmeter kit designed to measure low resistance for electrical interconnections integrity testing. The LRM-10 has a range from 0.01µΩ to 200Ω. It comes with heavy duty four points probes and it is compatible with a great variety of optional accessories.
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Product
1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester
TH2521
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Shenzhen Chuangxin Instruments Co., Ltd.
TH2521 AC Milliohmmeter is a high-performance and intelligent tester widely used to test contact resistance, internal resistance and battery voltage. The application of constant current source with 1kHz frequency can greatly eliminate the potential error caused by thermoelectricity on DUT. This meter has the function to automatically detect contact failures on test cable. At the range of 30mΩ, basic R resolution can reach 1μΩ. It is applicable for transformer, inductance coil copper resistance, relay contact resistance, switch, connector contact resistance, wire resistance, PCB line and via reistance dan metal defect detection, etc. In the mean time, signals, such as HIGH, LOW, PASS, can be output through HANDLER interface, thus it is very convenient to be used in automatic production line.
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Product
KV CAPS
200 V
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Macom Technology Solutions Holdings Inc.
The MACOM KV CAPSTM Si high voltage capacitors feature very high working voltage ratings, very low loss and excellent stability by virtue of their novel internal construction and very high-quality dielectric layers. These capacitors are available as unpackaged chips. The chips have gold bonding surfaces on both terminals to enable excellent bonding and minimum contact resistance.
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Product
Dual 12x6 1-Pole High-Density PXI Matrix Module
40-520-304
Matrix Switch Module
The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
PXI Dual 32x4 Matrix 1-Pole Switching
40-534A-021
Matrix Switch Module
Typical applications include signal routing in Functional ATE and data acquisition systems. These PXI matrix modules are constructed using high reliability sputtered Ruthenium reed relays, offering >109 operations to give maximum switching confidence with long life and stable contact resistance. Larger matrices may be constructed by daisy chaining the common signals from multiple PXI modules.
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Product
Single 12x12 1-Pole High-Density PXI Matrix Module
40-520-102
Matrix Switch Module
The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
Shoe Heat Resistance Tester
UI-FT28
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Shoe Heat Resistance Tester is to test shoe outsole and upper hot contact resistance ability especially for safety shoe. Heat Resistance Test Method includes ISO 20344, SATRA TM49, EN 344 and etc.
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Product
Instrument Transformer Calibrators
MRL 22
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Automatic measure of contact resistance. True 4 terminal measurement. μP operated, automatically saves results.
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Product
Miniature Two-Point Probe Set
PRF-922B
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The PRF-922B Miniature Two Point probe accurately measures point-to-point resistance of small areas. Like Prostat's PRF-912B Miniature Concentric Ring, the PRF-922B is capable of measurements up to 1.0x1012 ohms. Built-in distance stops provide consistent electrode to sample pressure for developing repeatable measurements. Use the PRF-922B to measure small material samples, hard to assess molded areas, edges of parts, tray or tape cells and other very small objects and surfaces. The assembly is supplied with replaceable conductive electrode covers to enhance contact resistance on irregular surfaces and composition materials. Thus, measurements may be made with either the gold plated electrode contacts, or via conductive rubber covers.
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Product
Micro-Ohmmeters
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Micro-Ohmmeter is an affordable 7 range, 4-Wire Kelvin based product that is used to test electrical resistance on a wide variety of applications including winding resistance, contact resistance, and component testing. The 720A micro-ohmmeter has an autorange feature (available with NSN package) and is compatible with an RS232C interface (OP-232). Thanks to its wide-range capabilities, ease of use, and CE mark, this micro-ohmmeter is used commonly across the globe.
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Product
Medical Grounding Resistance Tester
2678YM
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Shenzhen Chuangxin Instruments Co., Ltd.
Medical Grounding Resistance Tester，Product Introduction2678YM Medical Grounding Resistance Tester Is Used To Measure The Internal Electrical Equipment Of Grounding Resistance,Which Reflects The (Contact) Resistance Of Total Grounding Terminal Of Electrical Equipment.It Suitable For Measuring All Kinds Of Motors,Electrical Appliances,Instruments,Household Appliances And Other Equipment Resistan
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Product
Dynamic Micro Ohm Meter
PRIME 600
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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 600 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
PXI Single 44x4 Matrix, 1-Pole Switching
40-523-021
Matrix Switch Module
A 44x4 medium density matrix - product range comes with available reedrelay formats of 1-pole, 2-pole and 1-pole screened. The screened version is suitablefor switching signals up to 50MHz. These PXI matrix cards are constructed using highreliability ruthenium electro-plated reed relays, offering >10e8 operations togive maximum switching confidence with long life and stable contact resistance.
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Product
Auto Contact Resistance Tester
KVHL
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KV Hipot Power Test Equipment Co.,Ltd
KVHL Auto contact Resistance Tester with advanced large power switch power technology ang electric circuit is a special measurement instrument for testing the contact resistance of high/low switchs, cable wires and welds.
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Product
Contacts Resistance Tester
JYK II
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•Instrument IPC architecture for domestic production of all models of metal contacts SF6 switchgear, GIS combination of electrical, vacuum switch, oil switch and column switches, contacts and so on.•Sensor: Acceleration speed sensor, rotation speed sensor, linear stroke sensorinstallation is very easy and simple.•Trigger: The trigger, external trigger, the sensor is triggered. Sensor can trigger the circuit breaker manually switching characteristic test, such as a manual column pole division switch.
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Product
Capacitors - High Q MNOS Series
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Macom Technology Solutions Holdings Inc.
MACOM’s MMI-9000 and 9100 Series Chip Capacitors feature high stand-off voltage and low dielectric loss due to our use of nitride/oxide dielectric layers. Gold bonding surfaces, top and bottom provide ease of bonding and minimum contact resistance. MACOMs high Q MNOS series of capacitors have high insulation resistance, low dissipation factor, and low temperature coefficient, which are features that produce devices with excellent long term stability.
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Product
Single 24x6 1-Pole High-Density PXI Matrix Module
40-520-302
Matrix Switch Module
The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
Single 16x8 1-Pole High-Density PXI Matrix Module
40-520-203
Matrix Switch Module
The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
LXI Low Thermal EMF Matrix 1-pole 56x33
60-510-001
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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Product
Circuit Breaker Testing Equipment
HISAC Ultima
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HISAC Ultima – new generation Circuit Breaker Dynamic Test Set from SCOPE …. The ultimate solution for testing Circuit Breakers of all types. HISAC Ultima is the most complete analyser for checking the dynamic performance of CBs in live EHV switchyards upto 765 kV. HISAC Ultima can carry out Dynamic Contact Resistance Measurement on SIX breaks of THREE poles in one operation thereby significantly reducing stress on CB & testing downtime.
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Product
DUT Matrix 32 DUT Matrix Channels
40-530-021
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The 40-530-021 is a high density 32x8 1 pole reed relay matrix. Typical applications are signal routing in functional ATE and data acquisition systems. It consists of highly reliable sputtered ruthenium reed relays that offer >10e9 switching cycles to ensure maximum switching reliability with a long service life and stable contact resistance. Larger arrays can be built by daisy-chaining the common signals from multiple PXI modules
