Unable to Recharge the prepaid meter

Solution: Connectivity Check: Confirm the meter is successfully communicating with the server. Serial Number Verification (SmartComm): Access the SmartComm Customer Master and ensure the serial number recorded matches the physical serial number of the connected meter. Duplicate Configuration Check: Verify that no two meters are incorrectly configured with the exact same serial number in the system.

Email Configuration SMTP Details Outlook

Solution: SMTP Host/Server Name: For Outlook.com: smtp-mail.outlook.com For Office 365/Microsoft 365: smtp.office365.com SMTP Port:587 (recommended) Encryption Method: STARTTLS Authentication: Your email account needs to be authenticated, so enable login or use the ""My outgoing server (SMTP) requires authentication"" option in your email client. Username: Your full Outlook email address (e.g., yourname@outlook.com or yourname@domain.com) Password: Blank

Email Configuration App Password creation for Gmail account

Reason - Gmail will work only with a secure encrypted app password Solution: Go to your Google Account settings. Navigate to the Security tab. If you don't have it enabled, turn on Two-Step Verification. Find and click on App passwords. Select an app name (like ""SMTP"" or ""Mail Client"") and click Generate. Copy the generated 16-character password and use it in your mail client's password field instead of your main Gmail password.

Email Configuration SMTP Details Gmail

Solution: Gmail SMTP Settings SMTP Server: smtp.gmail.com Port: 587: (requires STARTTLS/TLS) 465: (requires SSL) Authentication: Required Username: Your full Gmail address (e.g., user@gmail.com) Password: An App Password generated from your Google Account security settings Security/Connection: TLS or SSL, depending on the port chosen

Transfer existing sensor to a different gateway

Reason - Loss of old data stored under device id created Solution: To prevent data loss, edit the sensor and use the "Move to Gateway" option to transfer the sensor to a different gateway.

Asset list is not available in the filter

Reason - The asset is not assigned to the organization Solution: Check the asset selection settings in organization settings

Reason - Sensor/gateway limit exceeded Solution: Check license information for sensor/gateway limit

Cannot change the ip address of gateway

Reason - The ip address should is not available Solution: 1. if company network is being used check the accesibility to access 2. check if set ip is with in subnet range 3. Check if Primary and Secondary DNS is correct as per network settings 4. Set the Default Gateway IP to match the router's IP or the company network's default gateway IP.

3rd part meter not communication

Reason - 1. Memory map configuration wrong 2. (10 power -4 )Conversion factor is not available in third party memory map configuration 3. Data on modscan and software is matching but not matching with meter display readings Solution: 1. Verify data via Modscan, check wiring, confirm the meter parameter's datatype/function code in the memory map, and ensure the gateway supports that parameter datatype. 2. Can be added from conversion factor available in Master settings

Could not download certificate

Reason - All mandatory fields are not saved in organisation info settings Solution: All details should be given in mandatory field of organisation settings

Impact of Q-factor on performance of Detuned reactors

Published: Mar 11, 2026 | Updated: Apr 08, 2026

Technical Articles

Detuned reactors / inductors are installed in series connection with power factor correction capacitors to avoid harmonic amplification and resonance. They are rated in kVAr along with tuning factor (7% or 14%). They are typically designed with high linearity to avoid saturation & withstand harmonics, along with safety features such as auto-thermal cut-off, higher insulation class for windings.

In addition to the above-mentioned parameters of detuned reactors, it is equally important to consider Quality Factor of the reactor, popularly referred as Q-factor. This article explains about the same, along with the importance of Q-factor and recommended values.

Q-factor:

Theoretically, an inductor would have pure inductance only, whereas in reality they have some resistance. This resistance causes energy loss and acts as performance limiting factors for the inductor.

Quality Factor, also called Q-factor is a dimensionless number and helps in defining that performance of the inductor. The Q-Factor is the ratio of Inductive impedance to DC Resistance of detuned reactor.

Q factor = 2πfL/R

Where,

f = Frequency

L = Inductance

R = Resistance

Effects of Q-factor on filter performance:

1. Losses:

Reactor with high Q-factor has lower power losses. Higher Q-factor implies lower DC resistance value which results in lower i²R losses (conductor loss). It can also be explained by below formula:

𝑃𝑜𝑤𝑒𝑟 𝐿𝑜𝑠𝑠 = 𝑇𝑜𝑡𝑎𝑙 𝑃𝑜𝑤𝑒𝑟 (𝑘𝑉𝐴) / 𝑄 𝑓𝑎𝑐𝑡𝑜𝑟

Let us compare the performance of two detuned reactors with different Q-factors based on tested values:

2. Impedance offered by reactors:

To understand this, we shall first understand the functioning of a detuned circuit:

Detuned circuit sets a resonant frequency and offers higher inductive impedance to the frequencies above the resonant frequency. A 7% detuned reactor sets a resonant frequency of 189 Hz and thus restricts harmonic amplification of 5^th order (250 Hz) and above frequencies, while 14% detuned reactor sets a resonant frequency 133Hz and thus restricts harmonic amplification of 3^th order (150 Hz) and above frequencies.

A detuned reactor with higher Q-factor has sharper impedance curve. Hence it offers more impedance to higher harmonic frequencies. Let us study the same based on tested values:

As can be seen in the graph, reactor with higher Q-factor offers almost double impedance than the reactor with lower Q-factor for higher order harmonics. All other parameters of both the reactors like the inductance, linearity, etc are same, except the Q-factor. The higher impedance results in better reduction of harmonic amplification & resonance.

How to achieve a high Q-factor?

To achieve good Quality factor, the detuned reactor should have minimum DC resistance as possible.

𝑅𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 = 𝜌𝑙/A

Where,

ρ = Resistivity

l = Length

A = Area of cross-section

Resistance is directly proportional to resistivity. Conductor with lower resistivity (copper coil) can be chosen for winding of detuned reactors to get low DC resistance, thereby high Q-factor
For a relatively higher resistivity materials like Aluminium, the cross-sectional area of the windings to be increased to decrease the effective resistance.

In this study, we have seen the Q-factor of two 50 kVAr 7% reactors one with Q-factor of 32 and other with Q- factor of 58. Practically, Q-factor as high as 58 is easily achievable (refer the above table). But considering smaller ratings & other practical factors, any Q-factor value above 35 is preferable.

Conclusion:

It is always challenging to select right electrical components for harmonic environments in industries. Detuned reactor-capacitors in APFC panels along with Active Harmonic filters are doing their part in controlling harmonics of the system. Choosing the detuned reactors with high Q-factor (Quality factor) can help to control harmonic amplification even more effectively. In addition to this, reactors with high linearity limit (>180%) and proper thermal design of panels will help in bringing the best out of the detuned reactors. While selecting detuned reactors, along with other specification / parameters like Linearity, Power Loss, Insulation class, etc., it is understood from this article that Q-factor should also be given equal importance.