Hi-pot Tester
High voltage insulation testers are specialized electrical instruments used to evaluate the insulation resistance and withstand voltage capacity of electrical equipment, cables, and components under high voltage conditions. For industrial buyers and electrical system engineers, these testers are critical tools for ensuring safety, equipment reliability, and compliance with international electrical standards.
Working Principle:
High voltage insulation testers apply a controlled high voltage (typically between 1kV and 100kV) across an insulating material and measure the leakage current. The measured insulation resistance indicates whether the insulation is intact or degraded. In withstand voltage mode, the tester checks whether the insulation can sustain a high voltage for a specified duration without breakdown.
Benefits:
Application Industries:
Saimr offers a range of programmable high voltage insulation testers designed for automated, precise, and repeatable testing. The models differ in output voltage range, accuracy, and control modes.
| Model | AC Output Voltage | DC Output Voltage | Test Items | Insulation Resistance Range | Display | Communication Interface | ||
|---|---|---|---|---|---|---|---|---|
| SMR990 | 50V – 5000V | – | AC/DC Withstand Voltage | – | LED | RS232 / I/O Interface | ||
| SMR990A | 10V – 5000V | 10V – 6000V | AC/DC Withstand Voltage | – | LED | RS232 / I/O Interface | ||
| SMR990B | 10V – 5000V | 10V – 6000V | AC/DC Withstand Voltage, Insulation Resistance | 100KΩ – 99GΩ | LED | RS232 / RS485 / I/O Interface |
| Model | AC Output Voltage | DC Output Voltage | Test Items | Insulation Resistance Range | Display | Communication Interface | ||
|---|---|---|---|---|---|---|---|---|
| SMR991 | – | 0.1kV – 10kV | DC Withstand Voltage, Insulation Resistance | 100KΩ – 99GΩ | 95mm x 20mm Monochrome LCD | PLC, RS232C | ||
| SMR991A | 0.1kV – 10kV | 0.1kV – 10kV | AC/DC Withstand Voltage, Insulation Resistance, Leakage Test | 100KΩ – 99GΩ | 95mm x 20mm Monochrome LCD | PLC, RS232C |
High voltage insulation testers from Saimr — including the SMR990 and SMR991 series — are designed to address common challenges in high-voltage electrical equipment testing:
Identify insulation breakdown before failure occurs
Ensure compliance with IEC, GB, UL testing standards
Improve test repeatability and accuracy
Reduce manual workload with programmable test functions (SMR991)
Store and recall multiple test settings for fast production switching
Detect dangerous arc discharge in real-time
Integrate easily into automated test systems via RS232/RS485/PLC
Adapt to both lab environments and production floors with model flexibility
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