VT407 AC current converter & HAT-100Q1 AC current transducer

Contents

Product page: https://www.vutlan.com/analog-sensors/58-vt407-ac-current-converter.html

Product page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/44630043/VT407+AC+current+converter+HAT-100Q1+AC+current+transducer

Physical description VT407 / AC current converter

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Function

The HAT-100Q1 is a simple open-loop AC current transducer that measures AC currents in the range of 0-100A. It is designed for monitoring and controlling power consumption and is ideal for applications where precise AC current measurements are critical. The transducer detects the current and outputs an analog signal that can be processed by a monitoring system.

To transfer the measured AC current data, the VT407 AC converter is used. It is an analog plug-and-play device that connects to any available analog port (A1...A8) on a Vutlan monitoring unit. This allows for seamless integration of current monitoring into the broader Vutlan monitoring system, providing real-time data on current consumption and enabling the system to react to overcurrent situations or electrical failures.

Additionally, the maximum number of VT407 converters connected to the system and the maximum length from the monitoring unit can be expanded using the VT408 / Sensor extension unit, offering scalability for larger monitoring setups or more complex infrastructures.

This combination is ideal for monitoring power usage in data centers, industrial environments, or telecommunications facilities, where reliable power monitoring is crucial for maintaining operational efficiency and safety.

Use cases

Here are some use cases for the HAT-100Q1 AC current transducer and the VT407 AC converter:

1. Power Monitoring in Data Centers:

• Real-time AC current monitoring: Ensuring that server racks and cooling systems are operating within the correct current limits to prevent overloads or electrical failures.

• Energy Usage Optimization: Tracking the power consumption of critical infrastructure to identify areas for reducing energy waste and improving overall efficiency.

2. Industrial Power Systems:

• Motor Current Monitoring: Measuring the current drawn by industrial motors to detect potential issues like overcurrent, which could lead to motor failure or energy inefficiency.

• Equipment Health Monitoring: Providing insights into the health of electrical equipment by monitoring current fluctuations, allowing for predictive maintenance and avoiding unexpected downtime.

3. Telecommunications Infrastructure:

• Power Supply Monitoring: Monitoring the current flowing to telecommunications equipment to ensure that devices such as routers, switches, and backup power systems are receiving stable and reliable power.

• Backup Systems: Ensuring that AC power backup systems (like generators or UPS units) function properly during power outages by monitoring the current being drawn.

4. Renewable Energy Systems:

• Solar Inverters and Wind Turbines: Monitoring the AC current generated by renewable energy sources such as solar panels or wind turbines to ensure they are operating within safe limits and optimizing energy output.

• Grid Integration: Tracking the current flow from renewable systems into the main grid for efficient energy distribution and ensuring compliance with grid standards.

5. Commercial Building HVAC Systems:

• HVAC System Monitoring: Ensuring that air conditioning, heating, and ventilation systems are running efficiently by measuring the current used by large fans, compressors, and other components in the system.

• Load Management: Preventing overloading of circuits by monitoring the power consumption of multiple HVAC units, particularly in large commercial buildings.

6. Electric Vehicle (EV) Charging Stations:

• Charging Current Monitoring: Tracking the AC current supplied to electric vehicles at charging stations to ensure proper and efficient charging, preventing damage to both the vehicle and the charging infrastructure.

• Fault Detection: Detecting abnormal current spikes or drops, which can indicate faults in the charging system or the vehicle, ensuring safety and reliability.

7. Building Automation and Management Systems (BMS):

• Energy Usage Tracking: Integrating current monitoring into a BMS to track the energy consumption of different systems (lighting, HVAC, elevators) and optimize energy usage across the entire building.

• Load Shedding: Monitoring the AC current to strategically reduce the load on electrical circuits during peak energy usage periods, preventing overloads and improving energy efficiency.

These use cases demonstrate the versatility of the HAT-100Q1 and VT407 for various industries, particularly where accurate AC current monitoring is crucial for maintaining operational safety, efficiency, and reliability.

Components

The transducer HAT-100Q1 consists of a plastic housing with an open/closed AC current loop and 4 4-pin terminal connectors. The current converter VT407 is a simple plastic case with 4 pins input, DC 12V socket, and RJ output for connection to monitoring units.

Technical specifications

Safety instructions

• Please observe the valid regulations for installation in the country in which the current transducer is installed and operated and the national regulations for accident prevention. Please also observe any internal company regulations, such as work, operating, and safety regulations.

• The technical specifications and limit values stated must not be exceeded under any circumstances. In particular, this applies to the specified ambient temperature range and IP protection category.

Siting location requirements

To ensure proper functionality, the conditions specified in the section “Technical specifications” must be observed.

Installation procedure

Notes on assembly

• Be careful, the transducer's maximum isolation voltage is 2kV.

• The transducer can measure AC current on any current wire, not more than 10 mm in diameter. Just open the cover, insert the wire, and close it.

• Max. distance for the current converter from the monitoring unit is 50 meters.

Installation

The transducer and the converter are installed together.

1. Mount HAT-100Q1 transducer using M4 screws and M4 nuts. The distance between mounting holes is 50 mm.  

2. Mount VT407 current transceiver using M4 screws and M4 nuts or double-sided stickers. The distance between mounting holes is 60 mm.

3. Connect both HAT-100Q1 and VT407 using a cable. The cable is included in the package of VT407. The cable has x4 conductors and x2 power connectors  (4P 5.08mm and 4P 3.81mm) at each end.

Connection

• Connect the converter to the monitoring unit by RJ11 cable, connect the 12V power adapter connected to 230V, and connect a flat cable with green connectors to the transducer. 

• Two green LEDs will be lit on a sensor. The monitoring system will automatically sense the current converter as a sensor.

The new sensor will appear in the web interface of the system. Click on the "System tree" menu and you will find a new sensor marked by an icon (abbreviation from Voltage function, used for sensor monitors and converters). Click on the sensor to open its properties.

A modal window with sensor properties will pop up.

1. Change the type of the sensor by choosing "Current". Choosing any type of sensor does not affect sensor properties, it only changes the sensor icon for the comfort of usage.
   
   
   

   
   
   
   

2. Change the name of the sensor, for example, "AC current".

3. How to use an "Expression formula": 20 * (x-B).  "B" indicates the voltage at the output of the current transducer at zero current. 

4. To measure "B", measure the readings of the monitoring system at zero current in the transducer. Typically B is about 0.017 - 0.021.

   Then you can write the formula "20*(x-B)". Push OK.

5. Now the system is ready to measure the current in the transducer core.

6. Finally put in the threshold levels by dragging: Low alarm, Low warning, High warning, High alarm levels.
   
   

   
   For example, the graph above shows that the state of the sensor at the moment is "Normal" because 20.4 is between "Low warning" and "High warning" states, which is considered a "normal" state.

7. Click “Save” on a diskette at the bottom right of the “Properties” window. The page will reload and the sensor will update by changing its icon type to

   (abbreviation from "Ampers").

Manipulating transducers

Example 1: Equipment life prediction using a current sensor

Example 2: Equipment jam notification and sensing

Example 3: Switch off equipment before it overloads

Package content VT407

Page linked https://vutlan.atlassian.net/wiki/spaces/DEN/pages/89554954/VT407+package+contents

Package content HAT-100Q1

Page linked https://vutlan.atlassian.net/wiki/spaces/DEN/pages/89653249/HAT-100Q1+package+content

Frequently asked questions

Copyright:

Vutlan s.r.o. (LLC)

Remote Infrastructure Monitoring and Control

43 ul.Svornosti, 821 06 Bratislava,

Slovak Republic

www.vutlan.com