Contact Loop Resi stance Tester
Product Introduction
The contact loop resistance tester is dedicated to testing high & medium voltage circuit breakers, disconnectors and switchgear contact loops. Adopting large current boost technology, it can break through surface oxide layers and contact corrosion, obtaining true loop resistance data. Compact structure, strong field adaptability and automatic data storage help engineering teams finish switchgear maintenance and acceptance efficiently.
Product Parameter (specification)
2.1 Name and Classification
(1) Instrument name: MOEORW-W5101C loop resistance tester.
(2) Environmental group: It belongs to Group III of GB65-87 and Resistance 1-86 "General Outline of Environmental Testing of Electronic Measuring Instruments" (that is, it can be used in outdoor environment).
2.2 Measurement Range
Resistance value: 0-3000.00 μΩ (3.0 m Ω )
2.3 Test Current
The test output current of this instrument is ≥100A.
2.4 Measurement Accuracy
The measurement accuracy of this instrument is: 0.5 % rdg ± 1 μΩ
2.5 Highest resolution
The highest resolution of this instrument is 0.01 μΩ .
2.6 Maximum power of the instrument
The rated power of this instrument is ≤500W.
2.7 Using a power supply
(1) Voltage: AC220V±10%
(2) Frequency: 50Hz± 1Hz
2.8 Environmental Requirements
(1) Ambient temperature: -10℃-40℃
(2) Relative humidity: ≤80%
2.9 Instrument Type and Dimensions
(1) Instrument type: integrated portable
(2) Test line length: 6 meters as standard (longer lines can be customized)
(3) Dimensions and weight: 360*280*230mm 5kg
(4) Working method: Long-term continuous work
2.10 Test Time
The instrument offers selectable testing times of 3S, 15S, 60S, and 3600S. Measurements can be stopped at any time by pressing the confirmation button after data is generated during the test.
Test current options: 50A, 100A.
Product features and applications
This high-current loop resistance tester adopts optimized boost output design, which can rapidly penetrate contact oxide layers and corrosion layers on high-voltage switchgears. It realizes accurate and stable detection of tiny resistance values and avoids measured deviation caused by surface poor contact.
Equipped with high-precision sampling chip and intelligent calculation algorithm, the equipment guarantees stable operation under strong electromagnetic interference. With automatic pressure regulation, data lock and external printing functions, it meets standardized testing and report output demands for power engineering acceptance.
Prodection details
Specially applicable to high/medium voltage circuit breakers, isolating switches, load switches and complete sets of switchgear in power transmission and distribution systems. It is widely used in power stations, power supply bureaus, industrial enterprises and railway power departments.
Regular loop resistance detection can effectively judge switch contact abrasion, aging and loose connection, preventing equipment heating and power failure accidents, and guaranteeing stable and safe operation of high-voltage electrical equipment.
Company Qualifications
1.What is the core testing principle of this loop resistance tester?
It applies high constant current to break contact oxide and rust, acquiring authentic resistance data of switch contact loops.
2.Which types of switchgear is this instrument compatible with?
It covers high & medium voltage circuit breakers, disconnectors and cabinet-type switchgear, suitable for power industry routine maintenance and project acceptance.
3.Can it save and export test data?
Built-in data storage and optional external printing function support on-site data recording and formal test report output for engineering filing.
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