TB/T 2760.2-2016 in English

VALID

The rotating-speed sensor for rolling stock. Part 2: Hall effect speed sensor

Issued on:2016-05-26
Implemented on:2016-12-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $250.00
$243.00

Standard No:	TB/T 2760.2-2016
Document status:	VALID
Title in English:	The rotating-speed sensor for rolling stock. Part 2: Hall effect speed sensor
Title in Chinese:	机车车辆转速传感器第2部分：霍尔式速度传感器
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2016-05-26
Implemented on:	2016-12-01
Superseding:	TB/T 2760.2-2010 Revolution Meter for Locomotive. Part 2: Hall Effect Speed Sensor
Professional Classification:	TB-Railway Transport
Related Keywords:	performance indicators hall speed sensor hall effect speed sensor introduction background rotating-speed sensor locomotive traction system speed feedback voltage type
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Introduction

Background of Standard Evolution

This standard replaces TB/T 2760.2-2010, mainly responding to the update requirements of new basic standards such as GB/T 25119-2010, and making adaptive revisions to the technical requirements brought about by the high-speed development of EMUs. The 2016 version has been upgraded in 9 technical dimensions such as insulation performance, electromagnetic compatibility, and environmental adaptability.

Core Parameter Comparison

Technical Indicators	2010 Version Requirements	2016 Version Requirements	Range of Change
Insulation Resistance	50 MΩ	100 MΩ	+100%
Dielectric Strength	500 V_AC	1500 V_AC	+200%
Output frequency range (EMU)	Undifferentiated	0-20 kHz	Newly added

Key technical requirements

4.2 Working conditions

Power supply voltage: DC 15V/24V (±15% fluctuation range)
Working air gap: 0.3-1.5mm (standard value 0.8mm)
Speed measuring gear requirements: module ≥1.5, recommended 2.0/2.5

4.3 Performance indicators

Hall speed sensor has two output modes: current type and voltage type:

Current type: square wave duty cycle (50±20)%, rising/falling edge change rate ≥3mA/μs
Voltage type: when the load is 1kΩ, high level ≥0.8U_s, low level ≤2V

The dual-channel phase difference is required to be 90°±30°. Typical application scenarios include locomotive traction system speed feedback, brake control, etc.

Implementation Suggestions

Selection Precautions

Select the output type according to the application scenario: the current type is more resistant to interference, and the voltage type has simpler wiring
Insulation parameters need to be revised according to TB/T 3213-2009 in high-altitude areas
20kHz high-frequency response models should be selected for EMU applications

Installation and Maintenance Points

The gear installation clearance is recommended to be controlled at 0.8±0.1mm
The braiding density of the cable shielding layer needs to be ≥80%
IP68 protection level requirements (IP67 for the connector part)

More samples: DL/T 5154-2012 GB 50021-2001(2009) JC/T 2453-2018

Sample only — not a preview of TB/T 2760.2-2016

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