The Megger S1-1568/2 15kV Insulation Tester is an expert-level diagnostic instrument built specifically for high-voltage environments, such as power transmission networks, 765 kV switchyards, and industrial plants. It is engineered to provide extremely reliable measurements even in areas with severe electrical interference
Advanced Noise Immunity: Utilizes an adaptive filter to stabilize readings in high-interference environments, such as 765 kV switchyards.
RE>Act Mode: Continuously monitors and displays residual re-absorption currents, ensuring the asset is entirely discharged before initiating subsequent tests.
PI Predictor: An advanced algorithm that calculates a reliable Polarisation Index in a fraction of the traditional 10-minute duration.
Remote Operation Control: Allows technicians to operate the unit from a safe distance via USB or Bluetooth, mitigating arc-flash risks.
Dual-Case Construction: Features a rugged, impact-resistant outer shell combined with a fire-retardant inner case for extreme field durability.
Maximum Test Voltage: 15 kV DC
Maximum Resistance Range: 35 Tera-ohms (TΩ)
Short Circuit Current: 6 mA
Noise Rejection: 8 mA
Diagnostic Tests: Insulation Resistance (IR), Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Step Voltage (SV), and Ramp
Power Source: Rapid-charge Li-ion battery & 120/240 V AC mains
Safety Rating: CAT IV 1000 V up to 4000 m altitude
Connectivity: Isolated USB and Bluetooth








