UDH-100

Insulation Resistance Testers

Insulation Resistance Tester

Model : UDH-100

Electrical equipment like cables, motor, generators, transformers, HV circuit breakers, zinc oxide surge arrestors etc require insulation resistances tests to be conducted. Power industry has made rapid development using high capacity equipment and ordinary insulation testers cannot detect insulation test performance. Testing the insulation of large capacity power equipment needs high charging current. As charging current directly affects the measurement of insulation resistance, large capacitive devices under test need high charging current. Higher the charging current, the closer the test value of absorption ratio is to the true value.

UDEY ‘UDH-100’ provides high charging current of 5mA thus over coming the short coming of ordinary insulation testers where charging current is too small and resulting in incorrect test results.

UDEY ‘UDH-100’ adopts advanced microcontroller systems and samples voltage and current at the same time and then divides the results, so even if voltage changes, the resistance value calculated (by Ohm’s law) is accurate.

It is built in plastic cabinet with cover and is light in weight, easy to carry and very user friendly.

Machine Features

  • Standard test voltages: 500V, 1.0kV, 2.5kV, 5.0kV, 10.0kV
  • Measures insulation resistance up to 10 TΩ
  • Short circuit current: 5mA: (selectable 2mA, 3mA, 4mA and 5mA)
  • Automatic calculation & display of:
  • Polarization Index (PI),
  • Dielectric Absorption Ratio (DAR)
  • Measures & displays cable or insulation capacitance
  • Measures & displays leakage current
  • Anti-jamming circuits for better performance even when interference current reaches 2mA
  • Automatic discharge of capacitive devices under test like cables
  • Powered by internal high capacity rechargeable batteries or mains supply
  • Display of Insulation resistance simulation column
  • Digital filtering functions, external influence deviation display value causing mitigation point using filter function
  • Perfect protection functions
  • Heavy duty test leads

Standards

  • IEC: 61010-1: CAT.IV 600V
  • IEC: 61326: EMC: test, control-electrical equipment testing
  • IEC: 60529: IP 64: Outer casing closed

Machine Technical Specification

Test voltage & range: 0.5kV, 1.0kV, 2.5kV, 5kV and 10kV test up to 10 TΩ
Select test voltage  (0.5kV, 1.0kV, 2.5kV, 5kV and 10kV)
Set TEST time 1, 10,30 minutes
Voltage measurement accuracy 5%+ 3V
Current measurement accuracy 5%+0.2nA
Capacitance test range 20uF
Capacitance accuracy 15%+0.03uF
Capacitor discharge rate from 10kV to 10V: 0.55/uF
Short circuit current 5mA (settable: 2mA, 3mA, 4mA, 5mA)
Set Charging current in steps of 1mA from 2 to 5mA.

 

Insulation resistance test range and accuracy:  

Range

Accuracy*

500V 1000V 2500V 5000V 10,000V
<500kΩ <500k <500k <500k <500k Unspecified
500k-10G 500k-20G 500k-100G 500k-100G 500k-200G 5%
10G-100G 20G-200G 100G-1T 100G-1T 200G-2T 20%
>100GΩ >200GΩ >1TΩ >1TΩ >2TΩ Unspecified

* Temp: 23±50 C, R.H.: 45-75%

Power supply: AC power: 220V ± 10%, 50/60Hz. 20VA

Battery: 14.8V Lithium ion rechargeable battery

Battery indication: Battery status displayed on screen.

Battery charger: Charger to charge the batteries from 220V mains supply.

Accessories

  • Mains cord: 2 meter long: 1 number
  • Test leads with alligator clips: 2 meter long: 1 set
  • Operating Manual: 1 number

Dimensions: 26 x 20 x 16 cm

Weight: 3kg

+ Feature

Machine Features

  • Standard test voltages: 500V, 1.0kV, 2.5kV, 5.0kV, 10.0kV
  • Measures insulation resistance up to 10 TΩ
  • Short circuit current: 5mA: (selectable 2mA, 3mA, 4mA and 5mA)
  • Automatic calculation & display of:
  • Polarization Index (PI),
  • Dielectric Absorption Ratio (DAR)
  • Measures & displays cable or insulation capacitance
  • Measures & displays leakage current
  • Anti-jamming circuits for better performance even when interference current reaches 2mA
  • Automatic discharge of capacitive devices under test like cables
  • Powered by internal high capacity rechargeable batteries or mains supply
  • Display of Insulation resistance simulation column
  • Digital filtering functions, external influence deviation display value causing mitigation point using filter function
  • Perfect protection functions
  • Heavy duty test leads

Standards

  • IEC: 61010-1: CAT.IV 600V
  • IEC: 61326: EMC: test, control-electrical equipment testing
  • IEC: 60529: IP 64: Outer casing closed
+ Technical Specification

Machine Technical Specification

Test voltage & range: 0.5kV, 1.0kV, 2.5kV, 5kV and 10kV test up to 10 TΩ
Select test voltage  (0.5kV, 1.0kV, 2.5kV, 5kV and 10kV)
Set TEST time 1, 10,30 minutes
Voltage measurement accuracy 5%+ 3V
Current measurement accuracy 5%+0.2nA
Capacitance test range 20uF
Capacitance accuracy 15%+0.03uF
Capacitor discharge rate from 10kV to 10V: 0.55/uF
Short circuit current 5mA (settable: 2mA, 3mA, 4mA, 5mA)
Set Charging current in steps of 1mA from 2 to 5mA.

 

Insulation resistance test range and accuracy:  

Range

Accuracy*

500V 1000V 2500V 5000V 10,000V
<500kΩ <500k <500k <500k <500k Unspecified
500k-10G 500k-20G 500k-100G 500k-100G 500k-200G 5%
10G-100G 20G-200G 100G-1T 100G-1T 200G-2T 20%
>100GΩ >200GΩ >1TΩ >1TΩ >2TΩ Unspecified

* Temp: 23±50 C, R.H.: 45-75%

Power supply: AC power: 220V ± 10%, 50/60Hz. 20VA

Battery: 14.8V Lithium ion rechargeable battery

Battery indication: Battery status displayed on screen.

Battery charger: Charger to charge the batteries from 220V mains supply.

+ Standard Accessories

Accessories

  • Mains cord: 2 meter long: 1 number
  • Test leads with alligator clips: 2 meter long: 1 set
  • Operating Manual: 1 number

Dimensions: 26 x 20 x 16 cm

Weight: 3kg

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