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ETCR 3520C high voltage insulation tester with touchscreen

ETCR

ETCR 3520C 15 kV High Voltage Insulation Tester Megohm Meter 30T 7mA electrical system tool

SKU CH-SCGN-5EACV

A 15 kV insulation tester measuring IR, PI, DAR, step, ramp, DD, capacitance and AC/DC voltage with a touch screen and anti-interference technology for cables, motors and switchgear

Size ETCR3520C

  • Tests up to 15 kV for high-voltage equipment
  • Seven measurement modes cover IR, PI, DAR and more
  • Anti-interference design works on long cables and in substations
  • Touch colour screen shows live data and history together
  • Auto discharge and 36 V lockout protect operator and instrument

High-Voltage Insulation Tester for Power Systems

The ETCR 3520C is a new 15 kV megohm meter built for insulation resistance, polarization index, dielectric absorption ratio, step, ramp and dielectric discharge index testing on cables, motors, transformers and switchgear. It also measures distributed capacitance and AC/DC voltage, making it suitable for technicians working on large-scale, high-voltage electrical equipment. The 30T 7 mA rating supports demanding test currents in strong inductive environments.

Touch Screen and Anti-Interference Operation

A colour touch screen shows live test data and history records on one display, simplifying operation in the field. Unique anti-interference technology keeps measurements stable on long cables with large distributed capacitance and inside substations with strong electromagnetic fields. Custom test voltage, duration and selectable PI/DAR formulas let operators match site-specific requirements without external calculators.

Safety Monitors and Automatic Discharge

Built-in voltage monitoring blocks testing automatically when live voltage exceeds 36 V, protecting both the instrument and the operator. Current and internal temperature-humidity monitors give real-time feedback on test circuit conditions. After each test, an automatic discharge function releases stored charge from the measured object, removing the need for external discharge gear.

Highlights

  • Tests up to 15 kV for high-voltage equipment
  • Seven measurement modes cover IR, PI, DAR and more
  • Anti-interference design works on long cables and in substations
  • Touch colour screen shows live data and history together
  • Auto discharge and 36 V lockout protect operator and instrument

Specifications

No published specifications for this item yet.

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Questions about this item

How often should the 15 kV test leads be inspected or replaced?

Inspect the test leads before each use for cracks, contamination or damaged insulation. Replace them immediately if any wear is visible, as compromised leads affect 15 kV safety and measurement accuracy.

What limits continuous operation when testing long cables with high distributed capacitance?

The 7 mA short-circuit current rating caps the charging rate for large capacitive loads; extended STEP or RAMP sequences on very long cables may require pauses to stay within this limit.

How much heat does the 3520C generate during an all-day testing session in a substation?

The instrument monitors its internal temperature and humidity on screen; sustained high-voltage testing produces noticeable warmth but stays within normal operating range for the enclosure.

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