De-Energized Cable Phase Identification Tester with 400V Pulse Voltage for

The TAG-8500 De-Energized Cable Phase Identification Tester is designed to identify and verify A, B, and C phase conductors of de-energized cables before commissioning or grid connection.

The system uses a transmitter to inject different pulse signals into the three-phase conductors and a receiver to identify the corresponding phase at the remote cable end. It is suitable for new cable installation, long-distance cable lines, switchgear, and pre-commissioning inspections.

For de-energized cables only.

• New cable installation and commissioning
• Long-distance cable phase identification
• Pre-grid-connection phase verification
• HV/LV switchgear commissioning
• Multi-terminal cable systems
• Standard live-display indicator phase identification

• Remote Phase Identification — Identify A, B, and C phases at the remote cable end.
• Polarized Pulse Signal — Directional signals help distinguish the corresponding phase.
• Loop Resistance Monitoring — Monitor the cable circuit condition during testing.
• Clear Phase Indication — A, B, and C phases are displayed in different colors with audible alerts.
• Adjustable Signal Gain — Three gain levels help adapt to different signal strengths.
• Live-Display Indicator Testing — Supports phase identification through standard live-display indicators with the dedicated test lead.

Confirm cable phase identity before energization and reduce the risk of incorrect phase connections during commissioning.

The transmitter and receiver work together to identify phase correspondence between different cable ends, making TAG-8500 suitable for long-distance cable projects.

Verify that newly installed cable phases match the required phase designation before connecting the circuit to the existing power network.

The transmitter displays the loop resistance of each phase, helping engineers identify potential open circuits, poor grounding, or connection problems.

The compact transmitter, receiver, and flexible receiving coil make TAG-8500 suitable for on-site cable phase identification.

Choose TAG-8500 when you need to identify or verify cable phases while the cable is de-energized.

It is suitable for:

• New cable commissioning
• Cable replacement projects
• Long-distance cable identification
• Substation and switchgear commissioning
• Pre-grid-connection inspection

Need a reliable solution for identifying cable phases before commissioning or grid connection?

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No. TAG-8500 is designed for de-energized cables only. Always confirm that the cable is completely de-energized before testing.

Yes. The transmitter sends phase-specific pulse signals through the cable, and the receiver identifies the corresponding A, B, or C phase at the remote end.

Loop resistance helps indicate the condition of the test circuit. An abnormally high resistance may be caused by poor grounding, an open circuit, or a poor connection.

Yes. The transmitter and receiver are designed to identify phase correspondence between different cable ends, making the system suitable for long cable lines.

• 16+ Years of Electrical Testing Experience
  We have been developing and manufacturing electrical testing equipment for the power industry for more than 16 years.
• In-House R&D Team
  Our engineers support product development, technical customization, and application-specific solutions.
• Manufacturer Direct
  Direct factory supply helps provide competitive pricing, consistent quality, and responsive technical support.
• OEM/ODM Support
  Customize product appearance, logo, housing, and selected functions according to your market or project requirements.
• Technical & After-Sales Support
  We provide technical assistance, repair services, and long-term after-sales support for overseas customers.

We provide professional technical support, repair service, and long-term after-sales support for TAG-8500.

Wuhan Hongzhi Gaocetest Electrical Technology Co., Ltd. is a manufacturer specializing in electrical testing equipment for power utilities, substations, cable systems, electrical contractors, and testing organizations.

Our product range covers high-voltage testing, transformer testing, cable testing, insulation testing, resistance testing, and other electrical test equipment.