a Comprehensive Solution IEC62271 Automatic Circuit Breaker Contact Resistance Tester

• After-sales Service: Life Time Support
• Warranty: 1 Year for Circuit Breaker Contact Resistance Test
• Type: Circuit Breaker Contact Resistance Tester
• Accuracy Grade: 0.5%Rdg
• Load Way: Electronic Load
• Loading Method: Static Load
• Model NO.: GDHL-series
• Display: Digital
• Control: Fully Automatic
• Weight: 0-100Kg
• Product Name: IEC Standard Automatic Circuit Breaker Contact Re
• Application: Measure Contact Resistance of Circuit Breaker
• Test Standard: IEC62271
• Measuring Range: 0-1999.9 μΩ Resolution:0.1 μΩ
• Measuring Current: DC 100A/200A for Different
• Measuring Precision: 0.5 %Rgd+0.05%Fs
• Display Mode: LCD
• Data Shortage: 100 Groups
• Transport Package: Wooden Case
• Specification: 340*280*210mm
• Trademark: GOLD
• Origin: Chongqing
• HS Code: 9031809090
• Production Capacity: 200PCS/Month

Product Description

A Comprehensive Solution IEC62271 Automatic Circuit Breaker Contact Resistance Tester 




Introduction of  circuit breaker contact resistance tester megger ohm meter

• Both GDHL-100A and GDHL-200A Circuit Breaker Contact Resistance Tester are same panel design. 

• Circuit Breaker Contact Resistance Tester output DC 200A/100A current to test the contact resistance of circuit breaker or high current cable contacts.

• It is designed according to IEC62271. 

• The main application of the tester is measurement of circuit breaker contact resistance. 

• All the test results of the tester could be print by the micro-printer which is integrated in the tester. 

• Also all the test results saved in the tester could be upload to PC computer and then convert to MS WORD document. 

 

Features of GDHL-200A circuit breaker contact resistance tester megger ohm meter

1	Rapid test
2	Result print
3	Upload data to PC

contact resistance measurement method



1. DC Voltage Drop Method: This method involves measuring the voltage drop across the contacts while a known current is passed through them. The contact resistance is then calculated using Ohm's Law.

2. Bridge Method: In this method, a Wheatstone bridge circuit is used to measure the resistance of the contacts. The bridge is balanced by adjusting a variable resistor until the null point is reached, and the contact resistance is calculated from the known resistances in the circuit.

3. AC Impedance Method: This method involves applying an AC voltage to the contacts and measuring the resulting current. The contact resistance is then calculated using the impedance formula Z=R+jX, where R is the resistance and X is the reactance.

4. Current Injection Method: In this method, a high current is injected into the contacts and the voltage drop across them is measured. The contact resistance is then calculated using Ohm's Law.

 

Index of circuit breaker contact resistance tester megger ohm meter

1	Measuring range	0-1999.9 μΩ Resolution:0.1 μΩ
2	Measuring current	DC 100A/200A for different selection
3	Measuring precision	0.5 %RGD+0.05%FS
4	Display mode	LCD
5	Data storage	Save no more than 100 groups of data
6	Data connection	RS232 computer interface
7	Rated power supply	AC220V
8	Size	340mm× 280mm × 210mm
9	Environment temperature	-10 ºC~+40 ºC
10	Relative humidity	<80%