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Insights & Tips Archive


Quick Set Series: AN-031

Quick Set Series: Majorsine Primary INPUT Source Programming. The Quick Set Series procedure is for inverter applications where a primary input source is changed by the user of the inverter. The programmed mode is retained by the inverter processor. A future start-up will reference the saved selection. Preparing to use this feature requires the inverter to be installed with BOTH the dc voltage and ac voltage input sources. The inverter shall be powered, initial commissioning complete and...


September 08, 2022 | Technical Info, Design Ideas, | read more...

Quick Set Series: TB-27.1

Quick Set Series: Applications using the BATTERY function feature set in the MTS130/20AT-1U Power rectifier system. Quick Set Series Focus: Battery Mode and Battery Parameter Settings How: From the from MTS-Com Front Panel Administrator Menu Key Steps:  Select DC Limits – Screen will display the High and Low threshold limits for DC output parameters. o Press the DOWN arrow button twice to move the cursor to the Ext Equipment screen o Highlight BATT/LOAD (default is Load) and...


June 01, 2022 | Technical Info, Design Ideas, | read more...

130 Volt Compact Power for Power & Utility Applications

Two (2) Pole Disconnect Circuit Breaker in Majortel 130 VDC system This 130 volt dc power system is designed with the integrated output circuit-breaker 2-pole interrupt, front access operation. This circuit breaker separates both the positive and negative circuits between the compact power system output connection and rectifier bus.  Due to various 130V Power & Utility Industry applications, the circuit breaker is labeled “load” to indicate any output load in respect to the power system w...


June 05, 2019 | Product News, Technical Info, | read more...

Majortel Temperature Compensation Knowledge Bank

What is the "temp-comp" feature all about in a dc power system? The 2V cells in the big battery stacks require 3mV/cell/t° by manufacturing standards. Therefore, 0.003V per cell change (up/down) by the charging system in response to each degree variation. The calculated voltage factor is programmed into a rectifier/charging system. The factor must be adjusted to match the battery type, size and nominal voltage operation. The most common factors are listed below as examples. By Formula ...


February 01, 2019 | Technical Info, | read more...

Majorsine Accessory Products for Inverters

Majorsine-SNMP Communication Card Remote monitoring is a prime consideration and requirement to manage multiple network elements from a central location. Each inverter is manufactured with a port slot to support the card installation in the field, at the time of service commissioning. TCP/IP access is established by simply installing the plug-n-play card, configuring your network IP address and attaching the network interface cable. Navigate to the assigned address to review the various web sc...


October 01, 2018 | Product News, Technical Info, | read more...

Fuse Distribution in a Majortel Power System

Majortel 48Vdc Power System: MTS48/30FL-1U This power system is designed with the integrated GMT load fuse distribution bay, front access visual indication when a fuse is open.  The battery circuit breaker, integrated for maintenance convenience, is located on the front, next to the fuse distribution.  The circuit breaker separates the battery connection from the core rectifier and load bus when open.  The circuit breaker operates independently from the low voltage disconnect (LVD) that is p...


August 02, 2018 | Product News, Technical Info, | read more...

Dual-Power Feature in a DC-DC Converter

Load A/B Dual-Power Circuits – Majortel Converter Systems This power system is designed with the integrated Load A/B dual-power circuits with individual breakers and front access visual indication as a part of the label text on the breaker case. The design incorporates actuator guard barriers to aid in the prevention of unintentional actuator movement. The dual-power block terminal, for secured screw connection, is located on the system backside. This simple bulk configuration provides indepe...


June 02, 2018 | Product News, Technical Info, | read more...

What Do I Need? Using Simple Power Terms

Need Analysis: The Triad of Power Application Selection! These are the three key items one will need to know before selecting a power product. We call this the "triad" in power. There is something going IN, something going OUT and how MUCH of the something in all systems. A system designer can evaluate a detailed wish list of parameters, once each point in the triad is defined. Consider the following: Voltage Input: This is a number and type. Examples like 240Vac or 130Vdc Voltage...


February 15, 2018 | Technical Info, | read more...

Majortel Distribution Breaker - Technical Bulletin

Technical Bulletin TB-018 for Majortel Power System Breaker Distribution Circuit Breakers Insertion Procedure 1.  When inserting the distribution circuit breaker into the respective terminals, both spades may not fully seat in the female terminals and the auxiliary alarm spades are at high risk of being bent and/or broken during insertion. In some cases, this lack of attention to detail at application prep has caused auxiliary alarm terminals to break and voltage terminals to bend. ...


November 01, 2017 | Technical Info, | read more...

Majortel Converter 250V dc Operations

MTD Converter*: 250 Volt Operation Scope: Application for a Utility Service Provider that will deploy the Majortel DC-to-DC converter in a 250V dc nominal power, substation environment. This procedure is intended to be performed by qualified personnel familiar with general dc electrical system knowledge and maintenance protocols. Multiple 130V to 24 and 130V to 48 converters are deployed across the nation, this is one of a select few that operate with a higher voltage bus.  #SmartGrid #Grid M...


September 01, 2017 | Technical Info, | read more...