English Product Name

Overview

The TimePower TP575 Insulating Oil Gas Evolution Tester is a precision laboratory instrument engineered for quantitative assessment of gas evolution behavior in electrically stressed insulating oils. It operates on the principle of controlled corona discharge at the oil–gas interface under high-voltage DC or AC fields, simulating the electrochemical degradation conditions encountered in high-voltage equipment such as power transformers, capacitors, and underground cables. The instrument measures the net volume of gas evolved (or absorbed) over a defined test duration, providing critical data for evaluating oil stability, oxidation resistance, and compatibility with solid insulation materials. Designed in strict compliance with GB/T 11142–1989, NB/SH/T 0810–2010, and ASTM D2300, the TP575 delivers reproducible, traceable results essential for condition-based maintenance, oil reclamation decisions, and quality assurance in transformer manufacturing and utility asset management.

Key Features

• Large backlit LCD display with intuitive Chinese menu interface and capacitive touch-screen operation—enabling rapid parameter setup and real-time status monitoring without external PC dependency
• Transparent thermostatically controlled oil bath with PID-based temperature regulation, ensuring thermal uniformity across the test zone and minimizing drift during extended 120-minute assays
• Dry-type high-voltage transformer with epoxy vacuum casting insulation, delivering stable 10 kV output with <±2% linearity and negligible leakage current under load
• Integrated digital timer with audible alarm and automatic stop function; timing resolution of ±1 s supports strict adherence to standardized test durations
• Optically clear polycarbonate safety enclosure rated to IEC 61000-4-5 surge immunity and mechanically interlocked to disable HV output when opened
• Modular electrode and gas-collection assembly—including dual析气 cells (gas evolution cells), twin calibrated gas burettes (±0.1 mL graduation), and adjustable electrode spacing—facilitating method flexibility per ASTM or national standards

Sample Compatibility & Compliance

The TP575 is validated for use with mineral-based and synthetic insulating liquids, including transformer oil (IEC 60296), capacitor oil (IEC 61039), and cable impregnating compounds. Its design conforms to functional safety requirements outlined in IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use). All electrical components meet CE marking criteria for EMC (EN 61326-1) and low-voltage directive (2014/35/EU). Calibration documentation—including factory verification reports traceable to CNAS-accredited reference standards—is supplied with each unit to support ISO/IEC 17025-compliant laboratories and GLP audit readiness.

Software & Data Management

While the TP575 operates as a standalone benchtop system, its embedded firmware supports RS-232 serial output for optional integration with LIMS or custom data acquisition platforms. All test parameters (temperature setpoint, voltage level, duration, ambient conditions) and final gas volume readings are timestamped and stored internally (non-volatile memory, 100-test capacity). Exported data comply with ASTM E2500–22 guidelines for electronic record integrity and may be configured to generate CSV files compatible with statistical process control (SPC) software. Audit trail functionality—including operator ID entry and change logging—is available via optional password-protected administrator mode, aligning with FDA 21 CFR Part 11 expectations for regulated environments.

Applications

• Assessment of gassing tendency in new and in-service transformer oils per IEEE C57.106 recommendations
• Screening of antioxidant additives (e.g., DBPC, Irgamet 39) for their impact on hydrogen and methane evolution suppression
• Comparative evaluation of naphthenic vs. paraffinic base stocks under identical electrical stress profiles
• Supporting root-cause analysis of abnormal dissolved gas analysis (DGA) trends in field units
• Quality conformance testing for oil suppliers supplying to grid operators under EN 50216 or GB/T 7595 specifications
• Research into alternative insulating fluids—including ester-based and silicone oils—under accelerated aging protocols

FAQ

What standards does the TP575 fully support for routine testing?
The instrument implements full hardware and procedural alignment with GB/T 11142–1989, NB/SH/T 0810–2010, and ASTM D2300, including voltage ramping profiles, electrode geometry, bath temperature stabilization time, and gas collection methodology.
Can the TP575 be used for both positive and negative gassing tendency evaluation?
Yes—the dual burette configuration enables detection of net gas evolution (positive gassing) or net gas absorption (negative gassing), with directional interpretation based on volumetric displacement relative to initial meniscus position.
Is third-party calibration certification available?
TimePower provides NIST-traceable calibration certificates upon request, issued by CNAS-accredited metrology labs covering temperature, voltage, and timing subsystems.
What maintenance intervals are recommended for long-term reliability?
Annual verification of HV insulation resistance (>2 GΩ at 1 kV DC), biannual cleaning of electrode surfaces with analytical-grade acetone, and quarterly validation of bath temperature uniformity using PT100 probe mapping are advised per manufacturer’s technical bulletin TB-TP575-Rev.3.
Does the instrument support automated reporting generation?
While native report generation is menu-driven and printer-ready (via optional USB thermal printer), structured PDF or Excel export requires connection to TimePower’s LabLink™ companion software (v2.1+), sold separately.