The KDZD3540 Wireless High-Voltage Phase Checker is a specialized instrument designed for medium-voltage (drawer-type) high-voltage switchgear. It adopts non-contact phase verification technology to receive data externally, enabling simultaneous phase judgment and sequence testing for A, B, and C three-phase lines, avoiding the risk of operators directly contacting high-voltage electricity inside the cabinet. It complies with GB13398-92, GB311.1-311.6-8, DL/T 971-2017 and IEC61481-A2, IEC61243-1 standards. The device features a 3.5-inch LCD color screen for simultaneous display of phase, sequence, results, and voltage level. It supports 200 sets of data storage with USB upload, and has a 30-meter wireless transmission range with strong anti-interference ability against strong electromagnetic fields. The rugged, non-slip casing and simple one-hand operation make it ideal for field power maintenance.

Features

• Three-Phase Simultaneous Verification: Completes A/B/C phase checking at once with voice prompts for signal status and phase results.
• Split-Screen Display: 3.5-inch LCD color screen shows phase, sequence, verification results, and voltage level clearly.
• Non-Contact Operation: Avoids direct high-voltage contact, ensuring operator safety during medium-voltage cabinet testing.
• Data Storage & Upload: Stores 200 sets of data with USB interface for computer upload, saving, and printing.
• Long Wireless Range: 433MHz/315MHz wireless transmission up to 30 meters with strong anti-interference against strong electromagnetic fields.
• Rugged & Portable: Frosted, wear-resistant casing with hand strap; compact size (195×100×45mm) and 950g weight for easy field use.

• Model: KDZD3540
• Function: Medium-voltage cabinet phase verification, phase angle, and sequence testing
• Power Supply: Host: DC9V (6×LR6 alkaline batteries); Detector: DC6V (4×LR44 button batteries)
• Phase Verification Method: Non-contact
• Voltage Range: 10kV - 35kV
• Verification Distance: 20 meters
• Phase Discrimination: Same phase: -20°~20°; Different phase: 100°~140° and 220°~260°
• Range: 0°~360°
• Accuracy: Phase: ±10°; Frequency: ±2Hz
• Resolution: 1°
• Transmission Frequency: 433MHz, 315MHz
• Display: 3.5-inch LCD color screen (71mm×53mm)
• Data Storage: 200 sets (data retained after power failure/battery replacement)
• Auto Shutdown: After 10 minutes of inactivity
• Max Current: Detector: 30mA; Host: 150mA
• Weight: 950g (including batteries)
• Dimensions: Host: 195×100×45mm; Detector: 80×46×26mm
• Insulation Test: Host/Detector: AC3700V/rms (metal and plastic 外壳)
・Operating Environment: Temperature -10°C~40°C, Humidity ≤80%RH