The STRT-100 is a highly reliable, three-phase TTR tester tailored for transformer testing professionals in utility substations, field service, and OEM environments. Unlike single-phase testers that require sequential switching, this device delivers true 3-phase output, significantly reducing testing time and enhancing accuracy. Equipped with functions for turns ratio testing, phase angle deviation, vector group recognition, and optional excitation current measurement, it offers everything required for thorough transformer diagnostics. Compact, lightweight, and optionally battery-powered, the STRT-100 is ideal for use in challenging field conditions.

Applications:

• Transformer commissioning and maintenance
• Ratio testing of CTs (current transformers) and PTs (potential transformers)
• Power and distribution transformer diagnostics
• Vector group verification
• Field verification against nameplate values

Specifications:

Measurement Capabilities:

• Turns Ratio Range: 0.5–10,000
• Accuracy:
  • ±0.1% (≤1000)
  • ±0.2% (1001–2000)
  • ±0.3% (2001–4000)
  • ±0.5% (4001–10,000)
• Phase Angle Range: 0–360°
• Accuracy: ±0.5°
• Vector Group Recognition: Groups 1–12
• Optional Excitation Current:
  • Range: 0.1 mA–2 A
  • Accuracy: ±1% ±0.1 mA

Power & Build:

• Input Voltage: 160–240V AC, 50/60Hz
• Optional Battery Operation
• Size: 350 × 290 × 150 mm
• Weight: 4.9 kg (excluding cables)

Environmental:

• Operating Temp: -10°C to 50°C
• Humidity: ≤90%

About Manufacturer:

Founded in 2008, Xianheng intl (Elecgene) is a leading developer and manufacturer of portable and rugged test equipment for electrical systems and substations in China. Their tools focus on safety, speed, and cost-efficiency. Elecgene is listed on the Shanghai Stock Exchange and has built lasting partnerships across America, Europe, Southeast Asia, Africa, and the Middle East.