Bluetooth Fault Indicator JYZ-HT

Overview

The JYZ-HT overhead line Bluetooth fault indicator is a single-phase current detection fault indicator that integrates high-precision sensing technology, intelligent algorithms, and low-power Bluetooth 5.0 communication technology. It is suitable for 5-69kV overhead distribution lines, acting as a tireless "intelligent sentinel," monitoring the line's operating status around the clock. When a fault occurs, it quickly captures abnormal signals and reports the line status to the DCU and SCADA via convenient Bluetooth wireless communication. It also provides maintenance personnel with accurate and intuitive GPS fault location, completely revolutionizing the traditional, outdated method of relying on manual, segment-by-segment inspections.

Feature and Benefit

Precise Fault Detection and Indication

It can monitor line current in real time, accurately identify short-circuit faults and grounding faults, and support overload alarms and power outage detection. Its anti-interference design ensures accurate measurement.
When a fault occurs, different high-brightness LEDs on the equipment will flash immediately, providing a visual indication of the fault location on the ground, greatly facilitating rapid troubleshooting by on-site personnel.
Bluetooth Wireless Maintenance: Convenient and Efficient

Built-in Low-Power Bluetooth module. Maintenance personnel do not need to climb poles or operate complex equipment; they can simply use their smartphones below the tower to quickly read:
Fault information (type, time, phase), real-time/historical load current, and
Equipment status via an app, achieving "instant connection and data reading in seconds," reducing fault information acquisition time to minutes.
Data Recording and Historical Data Retrospective

The device internally stores key parameters at the time of a fault, such as fault time, monthly peak load, and fault current.
Maintenance personnel can retrieve historical data via Bluetooth for fault analysis, providing data support for grid optimization and preventative maintenance.
High-Reliability Design

Innovative online power extraction technology enables application in low-load or intermittent-load circuits, expanding the application range. Ultra-low operating power consumption allows for short-circuit fault detection and indication in lines with current as low as 1A, and operation for over 10 years. Utilizes encrypted AES communication technology for strong anti-interference capabilities, ensuring data security. High electromagnetic compatibility protection; operating temperature -40 ~ +85 °C; enclosure protection rating reaches IP67.

Technical Parameter

Technical Description:

Parameter/Type	JYZ-HT
Voltage level	5~69kV
Applicable frequency	50/60Hz
Cable diameter	Up to 30mm
Load current	0~1200A
Trip threshold range	50~1200A, adjustable, default 150A
Earth-fault Voltage Drop (Phase to Ground)	1% step, default 30%
Earth-fault Response Delay	1s step, default 30s
Design Standards	IEEE Std 495 (2007)
Fault Detection	Short circuit fault, Earth fault, Fault current and duration Maximum load current
Indication	Ultra-bright LEDs(Red Green Yellow LED)
Reset method	1. Magnet manual reset. 2. Remote reset via SCADA system 3. Time reset: adjustable, step length 1 second, default 24 hours, maximum 48 hours 4. Automatic delay reset after power on again, step length 1 second, default 30 seconds Up to 5 minutes, only for permanent faults
Remote reset	Remote control reset, APP reset
Protection Class	IP67
Operating temperature	-40℃~+85℃
Installation	Use the hot stick to install and remove
power supply	Replaceable lithium battery Harvest energy online (≥5A )
Low battery voltage alarm	The total battery power consumption is lower than 3.2V and the indicator flashes alternately
Local Storage	Record Load Profile Record/store 50 events for at least 7 days