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Fault Indicator

Negotiable

Qingdao Topscomm Communication Co., Ltd.

Located Region:

China

Address:

Area B, 5th Floor, Building 6, No. 288, Ningxia Road, Shinan District, Qingdao City, Shandong Province

Biz Consulting:

+86 400-6678-369

E-mail:

xxglb@topscomm.com

Online Contact

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Product Introduction:

The fault indicator is applied to 10kV overhead lines, enabling real-time monitoring of line load, accurate fault identification and location. This reduces fault detection and repair time, minimizes safety risks and economic losses, and enhances distribution automation.

Product Features:

1.100% accuracy in short-circuit fault detection, 95% accuracy in grounding fault detection

2.Over 8 years of service life, efficient power acquisition at 1A current, and 0.5% high-precision sampling

Technical parameters	Parameter Value
Working temperature (℃)	-40 to +70
Protection level	Acquisition unit IP68; collection unit IP55
Ground fault recognition accuracy	Metallic grounding 100%; low resistance grounding 100%; arc grounding 100%; high resistance grounding (below 2kΩ) 90%
Load current monitoring accuracy	≤ ± 0.5A at 0A ~ 100A; ≤ ± 0.5% at 100A ~ 600A
Power consumption (mW)	Static power consumption ≤ 80
Three-phase time synchronization error of acquisition unit (μs)	≤ 100
Recording startup conditions	Current mutation, phase electric field strength mutation, zero sequence current mutation, etc., to achieve the same group of triggers, threshold can be set.
Weekly Wave Sampling Points (unit)	≥ 256
Recording steady-state error	When 0A ~ 100A, ≤ ± 0.5A When 100A ~ 600A, ≤ ± 0.5%
Recording transient error	≤ 10%
Start-up time error (ms)	≤ 20
Three-phase time scale error (μs)	≤ 20
Recording range	Not less than 6 cycles before startup and 10 cycles after startup
Installation method	Outdoor live installation of overhead line
Line current (A)	0 to 630
Life (years)	≥ 8