• Replace high-voltage fuses in power systems every 15 years to minimize the risk of accidents. Using these fuses beyond the recommended period increases the likelihood of dangerous incidents.
• The Japan Electrical Manufacturers’ Association advises a 15-year replacement period for indoor high-voltage power fuses in its “Recommended Period for Maintenance and Inspection of High-Voltage Current-Limiting Fuses.” Continuing to use fuses past this period may lead to deterioration of the fuse’s internal element, causing malfunctions, ground faults, or short circuits. These failures could harm surrounding equipment and create severe hazards. Regular replacement prevents such issues and enhances safety.
• Hitachi discontinued its high-voltage power fuse models M-25A, M-25A-C, and SGT-50-KA in August 2008, and these now exceed the 15-year recommended period as of August 2023. Replace these fuses immediately with compatible Utsunomiya Electric models for optimal safety and functionality.
• Utsunomiya Electric provides high-voltage fuses compatible with Hitachi models and additional options like Ogaki Electric’s standard fuses for LBS. Contact us for more information on available options.
• We also offer a selection of low-voltage and marine-use fuses. Reach out to us with any fuse-related inquiries, and our team will assist you in finding the right solution.

Specifications of HM/HVG Series

Power System Overview

The off-grid independent power system, manufactured by Kei Communication Engineering Co., Ltd., is branded as “Personal Energy”®.

• Power Supply Method: Continuous inverter UPS system
• Battery Capacity: 19.2kWh (Olivine-type lithium iron phosphate battery)
• Input: Solar power 8kW, Commercial power 8kW
• Maximum Output: 10kW (two units of 5kW each)
• Solar Panels: Approximately 9kW installed on the rooftop and wall:
  • Rooftop: REC brand, REC280TP (280W) x 27 panels, totaling 7,560W
  • Wall: Q Cells brand, Qsmart85 (85W) x 20 panels, totaling 1,700W

Power System Operation Overview

The off-grid independent power system delivers AC power (single-phase, 2-wire, AC 100V) through continuous inverter conversion, drawing from either solar power generation (8kW) or commercial power (8kW) and storing energy in the battery. The system charges the battery from either solar power or commercial electricity, allowing it to directly power connected off-grid circuit loads like servers, communication equipment, computers, and lighting devices in a server room.

During the day, solar panels generate power that the system rectifies and converts into high-quality AC power, free of noise and voltage fluctuations, using continuous inverter technology. In case of a disaster, the system seamlessly switches to off-grid mode, drawing from solar power and battery reserves to maintain consistent power based on generation and battery capacity. This reliable setup ensures continuous operations and supports Business Continuity Planning (BCP).

The Personal Energy system offers flexibility with optional solar panel installation. Without solar panels, the system charges the battery solely from commercial power, functioning effectively as a large UPS (Uninterruptible Power Supply).

Key Points:

• This system qualifies under the “Act on Special Measures for Improving Productivity,” enacted in June 2018.
• Investment Returns and Policy Independence: Avoids the impact of reduced purchase prices under the revised Fixed Price Purchase System (FIT), allowing for an investment payback period of less than 10 years.
• BCP Support: Ensures a stable power supply during disasters and emergencies, supporting business continuity and contributing to sustainable corporate energy procurement plans.
• Energy-Saving Compliance: Utilizing self-generated electricity reduces primary energy consumption and CO2 emissions.

Marine Surveillance Camera System We cater to a variety of needs, including building systems from small to large scales, upgrading analog surveillance camera systems, and selling individual cameras and recorders.

Support for Small and Medium-Scale Surveillance Camera System Construction

Using dedicated viewers and recorders that are easy to install, we support the construction of small to medium-scale systems.

1. Supports various types of cameras, including indoor/outdoor, fixed/PTZ, infrared, and audio input.
2. Provides PC-free, easy maintenance with camera-dedicated viewers and recorders.
3. The IP network system flexibly accommodates system scaling based on the number of cameras and viewers.
4. The AHD system enables upgrades to high-definition (HD) by utilizing existing analog wiring.

Highly Expandable Video Management System to Support Various System Configurations

1. Manages camera footage and onboard information images (such as electronic charts, radar, and images from various measurement devices) comprehensively through an IP system.
2. GPS information, timestamps, and location data can be overlaid onto the video for display and recording.
3. Allows control over display and recording permissions per terminal and supports settings for automatic sequential display of camera images.

Shock-resistant structure with a compact and lightweight stainless steel body. Ideal as a mercury lamp replacement to comply with the “Minamata Convention on Mercury.

Main Feature of KMD100-60-GL

Milky-white globe type to reduce glare

• Wide 110-degree light distribution for broad area illumination

Specifications

Shock-resistant structure with a compact and lightweight stainless steel body. Ideal as a mercury lamp replacement to comply with the “Minamata Convention on Mercury.

Main Feature of KMD100-60

• Brightness equivalent to or greater than a 400W mercury lamp
• Compact and lightweight stainless steel body
• Shock-resistant structure
• Integrated LED power supply
• Supports spare parts

Specifications

Main Feature of KST-2000-W

1. Compatible with the latest 5 standards of digital terrestrial broadcasting in the world.

The terrestrial digital broadcasting standards in major regions are as indicated below. (Circa August 2022)

DVB-T/T2/T2 HEVC

European countries, Russia, Australia, Taiwan, Singapore, Thailand, UAE, etc.

ATSC

USA, Canada, Korea

ISDB-T

Japan

ISDB-Tb

South America, Philippines, etc.

DTMB

China, Hong Kong, etc.

Precautions for viewing terrestrial broadcasting

・To receive terrestrial digital broadcasts, it is necessary to have the corresponding TV antenna.

・Even if the antenna and this product are set up properly, and correctly connected, reception of terrestrial digital broadcasts will be impossible in countries without terrestrial digital broadcasting. In addition, various problems may occur such as blocking of signals by neighboring buildings, inability to receive weak signals, only being able to receive specific broadcasting channels, audio cutting out, and stopping of video, and appearance of block noise.

・Topographic conditions as well as weather conditions have great influence on TV terrestrial reception range.

・Pay broadcasts (scrambled broadcast) cannot be viewed.

・Not supported AVS China

2. Two in One.

3. Intuitive scan function