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Huazheng OEM 5KV Portable High Voltage Insulation Resistance Tester

0102030405

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Huazheng HZJY-20K 20kv Insulation Resistance Tester

An insulation resistance measuring instrument is used to measure the insulation resistance of electrical equipment. It is primarily used for the maintenance, testing, and inspection of insulation in electrical systems to ensure safety and reliability. The instrument measures the resistance of insulators, as most insulators in everyday life are not perfectly insulated. By applying high-voltage direct current to the insulator, the instrument can measure the current and calculate the resistance. The voltage typically used ranges from 250V to 1000V, and the acceptable insulation resistance is generally higher than 2 megaohms (MΩ).

I. Features

High-voltage insulation resistance tester, with 7 range: 500V, 1000V, 2500V, 5000V, 10000V, 15000V, 20000V,test up to 20TΩ, manual voltage regulation function.

● Strict accordance with the safety standards for design

● Insulation resistance range 20TΩ @ 20 kv

● Short circuit current can be adjusted, maximum 5mA (Can be ordered as high as 10mA, short circuit current products).

● Automatic display polarization index (PI), induced electric absorption test values than (DAR), and can test the leakage current and capacitance.

● Anti-jamming performance is superior, the interference current reaches 2 mA, still ensure accuracy of test instruments.

● 2 methods for power: use of lithium ion batteries, battery life can be up to 4 hours (10000V @ 100MΩ).

● Insulation resistance simulation column.

● Digital filtering functions, external influence deviation display value causing mitigation point using filter function.

● Perfect protection function, and the spare fuse prompt functions.

II.Specification Parameter

● Safety Standard

IEC 61010-1 CAT.IV 600V

IEC 61326 EMC specification: test, control and electrical equipment for testing

IEC60529 IP64 （Outer closed state）

● AC Power：220V±10%，50/60 HZ ，20 VA

● battery：16.8V Lithium ion rechargeable battery

● Battery Life：10000V@100M， 4 hour

● size（L x W x H）：37cm x 27cm x 17cm

● weight：3.6kg

● Test voltage accuracy: the nominal value 100% to 110%

● Voltage measurement accuracy：5%+3V

● Current test range：10mA

● current measure precision：5%+0.2nA

● short-circuit current： 5mA

● Capacitance test range：20uF

● Capacitance testing accuracy：15%+0.03uF

● Insulation resistance testing range and accuracy （T:23±5ºC ，RH :45 – 75%）

range/ accuracy	500V	1000V	2500V	5000V	10000V
Unspecified	<1M	<1M	<1M	<1M	<1M
5%	1M -10G	1M -20G	1M -100G	1M -100G	1M -200G
20%	10G -100G	20G-200G	100G-1T	100G-1T	200G-2T
Unspecified	> 100G	> 200G	> 1T	> 1T	> 2T

range/ accuracy	15000V	20000V
Unspecified	<1M	<1M
5%	1M -300G	1M -400G
20%	300G -3T	400G-4T
Unspecified	> 3T	> 4T

III.Instrument using

• measured DAR:

1.Select more than 1 minute length measurement.

2.Select the appropriate voltage and start.

3.The instrument automatically record 15 s and 60 s resistance, and calculate the absorption than after 60 seconds.

Absorption ratio calculation method: DAR = R60 / R15;

• measured PI :

1.Select more than 10 minute length measurement.

2.Select the appropriate voltage and start.

3.The instrument automatically record 15S, 60S and 600S resistance, and calculate the polarization index after 600 seconds.

Polarization index calculation method : PI= R600/R60;

• test connection points for attention

1. Tested to confirm product safety grounding, try not charged.

2. Confirm the instrument E end (ground) have been grounded.

3. The use of G terminal (protection ring) (this machine is of low voltage side of the screen)

When measuring high insulation resistance, the sample should be in the position a conductor surface protection between the two measuring end ring, and the conductor protection ring is connected to the instrument with a test line G side, try to eliminate the measuring error caused by the surface leakage current, security testing is accurate.