Hthl-100A Customized DC Circuit Breaker Loop Resistance Tester Micro Ohmmeter Automatic Contact Resistance Tester

• After-sales Service: 1 Year
• Warranty: 1 Year
• Display Type: Digital Only
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: HTHL-100A
• Certification: ISO9001
• Customized: Customized
• Measurement Range: 0~1999 Ohm
• Resolution: 1μΩ
• Measured Current: DC 0-100A Continuously Adjustable
• Accuracy: 0.5%+-1d
• Display Mode: 3-1/2 LCD
• Dimension: 300*270*200 mm
• Weight: 5kg(Not Including Accessory)
• Operation: Rotating Mouse
• Outer Box: Aluminium Alloy Box
• Test Line Length: 6 Meters
• Input: 220V 50Hz/110V 60Hz
• Current Regulation: Continuously Adjustable
• Convenience: Small Size, Light Weight
• Display: LCD Screen
• Usage: Manual
• Transport Package: Carton or Wooden Case
• Specification: see details
• Trademark: UHV
• Origin: China
• HS Code: 9030332000
• Production Capacity: 500 Sets Per Month
• Package Size: 50.00cm * 44.00cm * 46.00cm
• Package Gross Weight: 22.000kg

Product Description

Introduction

Nowadays Power Systems widely use model QJ44 DC double arm bridge to measure contact resistance (DC resistance and Loop resistance of high-voltage circuit breaker) while the minimum current of such model is 1mA which hardly find the decrease of cross-sectional area of transformers' conductive circuit conductor. The measurement of loop resistance of high voltage switchgear is affected by oil layer and oxide between static and dynamic contact port, so the resistance measurement value will be several times larger, and cannot reflect the true value of contact resistance. Therefore, the Ministry of Electric Power in national standards SD301-88 "AC 500KV Electrical Equipment Transfer and Preventive Test Procedure" and new version of " Electrical Equipment Preventive Test Procedure" stipulate that the testing current of circuit breaker and isolating switch contact resistance is not less than 100A to ensure accurate test results.
HTHL-100A Micro ohmmeter measures up to the latest power system standards--DL/T845.4-2004 designed for measuring loop resistance of Switching Control Equipment using High-frequency switching power supply technology and digital circuit technology. Test current of the Tester is DC 100A which is recommended in the national standards. The tester can measure the loop resistance at this value and display the result in digital. It is high precision and good stability and can meet most power systems' requirements in onsite high-voltage switches maintenance and high-voltage switches factory loop resistance measurement. (It performances accurately and stably)

 

Features

1. High current: For latest power supply technology, the tester can continuously output high current which overcomes the weakness of instantaneous current produced by pulsed power. It can effectively breakdown/puncture the oxide layer of the switches and then get precise results.
2. Strong anti-interference ability: The last number of test data will stably show in the LCD screen only with ±1 error even in strong Interference situation.
3. Long service life: All the precise resistances used in the tester can reduce the temperature's impact on the measurement results and connectors can enhance vibration resistance.
4. Convenience: Small size, light weight.
 

Parameters

 

Measurement range	0~1999 μΩ
Resolution	1μΩ
Measured current	DC 100A
Accuracy	0.5%±1d
Display mode	Current: 3-1/2 LCD
	Resistance: 3-1/2 LCD
Power supply	AC220V±10% 50Hz
Service conditions	Temperature -10ºC~40ºC, humidity:≤80%RH
Dimension	300×270×200 mm
Weight	5Kg(not including accessory)

Common problem
1. Is your company a sales company or a manufacturer?
Wuhan UHV Power Technology Co.,Ltd. is an industrial and trade enterprise, with its own  factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.

2. Whether the goods are in stock, whether they can be customized, and how long the delivery time is.
After the goods have been ordered, it takes about 7 working days for production if there are no accidents.

3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.

4. What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.

5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.


Contact us

Wuhan UHV Power Technology Co.,Ltd.
Address:Building 6, Optics Valley Optical-Mechanical Industrial Park, No.83, Gaoxin 5th Road,
 East Lake High-tech Zone, Wuhan city .China   430223