Nishishiba Electric
Nishishiba Electric Generating and Industrial System ⇒ Electrical Products
Nishishiba Electric Synchronous generators
We provide power generators for use in various areas, including emergency use to protect civil life from power outages caused by earthquakes and other natural disasters, use in co-generation systems for environmental conservation and energy conservation, and use in providing backup power supply to important facilities such as hotels, hospitals, and computer centers that need to operate around the clock.
Our products can cater to almost all types of motors.
Nishishiba Electric Switchboard
We provide a variety of switchboard products, including generator control boards for controlling upgraded power generation systems, various types of related high and low-voltage switchboards and switchgears, as well as monitoring control boards and motor control products, etc. as components of total systems.
Nishishiba Electric Control equipment
Detection devices for isolated operation are system linkage protection equipment used for power generators that are connected to commercial power supply systems and perform reverse power flow. With the system developed by Nishishiba (QC mode frequency system), there is little influence on the power system, and it is easy to incorporate into generator control boards, whether newly installed or pre-existing.
Nishishiba Electric Automatic Voltage Regulator
The Automatic Voltage Regulator (AVR) is a piece of equipment essential for regulating power generator voltage. We provide products to match all power generation systems, such as our high-function, highly reliable digital control system, developed with Nishishiba know-how.
Nishishiba Electric Generating and Industrial System ⇒ Personal Power-generating System
Nishishiba Electric Emergency generating systems
Emergency generating systems are essential for protecting human lives and safety and supplying power to important facilities in times of power outage due to natural disasters or unforeseen circumstances.
There is a demand for reliable equipment that is sure to work in an emergency.
Nishishiba's Generating systems provide a reliable backup power system for any situation.
This equipment can even be used in times of major catastrophe. (Applicable for BCP)
Product Information
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Series name
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Voltage
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Power-generation equipment capacity
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NPF9M
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Low voltage (200-V class)
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Normal model: 130/150 to 520/600 kVA
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Long-period operation model: 120/135 to 470/550 kVA
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NPFH
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High voltage (6600 V)
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360/380 to 750/875 kVA
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Nishishiba Electric Generating systems
We offer best-planning solutions for stable power supply systems.
We offer highly efficient diesel engine generators that can operate in tandem with commercial power supply and also ensure power supply for customers in times of power shortage or power outage.
Product Information
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Series name
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Generator output
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Features
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NDP190P
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190kW
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Fuel consumption: 48/49L/h
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Nishishiba Electric Generating and Industrial System ⇒ Electrical Power Systems for Various Use
Electrical Power Systems for Various Use
As electrical power systems for various use, we offer frequency converters utilizing rotary machinery and, as rotary power generator application products, high-speed rotary machinery, load regeneration systems, and transmission testing devices.
Nishishiba Electric Rotary Frequency Converter
To cater to special power supply needs such as test-condition power supply, factory power supply can be converted to the voltage and frequency needed to meet test requirements through the combination of a motor (and induction motor or a synchronous motor) and a synchronous generator.
Rotary Frequency converters can also handle parallel operation of several machines
Nishishiba Electric Rotary machinery application systems
Nishishiba Electric High-speed rotary machinery
Permanent magnet generator (PMG) technology enables power generation with high-speed and low-speed drive machinery.
Nishishiba Electric Load regeneration system
Energy released as heat due to water resistance and dry resistance can be effectively utilized through system regeneration
Nishishiba Electric Transmission testing devices
Through a combination of generator technology and drive technology, load testing and torque measuring of transmission, etc. can be carried out.
Nishishiba Electric Marine Electrical Systems
Electric propulsion system
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NISHISHIBA's electric propulsion systems make a contribution to safety operation with redundancy, better operation with lowest vibration and sound noise and minimized machinery space.
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Nishishiba proposes best solution against the harmonics produced by inverters.
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The inverter for propulsion motor can be used for other applications (bow thruster, cargo pump, loading compressor motor, etc)
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By multiple inverters integrated control system, the both applications can be operated at the same time. (Patented)
Examples of products
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Semisubmersible heavy-lift ship
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4×3,100kW (CPP)
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Dredging and oil recovery vessel
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2×1,500kW (FPP)
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Cable-laying ship
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3×1,839kW (CPP)
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Riser drilling vessel
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6×4,200kW (FPP)
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Coastal chemical tanker
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2×370kW (FPP, multiple inverter integrated control system)
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Ocean resource survey vessel
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2×3,200kW (FPP)
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Cargo-passenger ship
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1×1,500kW (FPP)
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Ferry
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2×1,000kW (FPP)
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Nishishiba Electric Shaft driven generating system
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NISHISHIBA's shaft driven generating systems make a contribution to saving of maintenance work as well as saving energy.
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Various driving arrangement such as intermediate shaft mounting, overhang on main engine, and step-up gear connection.
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Direct connection to 6.6kV main bus without step-up transformer.
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The control system has adopted digital control to get high reliability and control performances and to realize easy operation and maintenance.
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Additional functionality of motor only as generators can be applied to a variety of purposes.
Assisting of the main engine by booster mode at the peak, the rated output of the main engine can be reduced.
The propulsion mode can be used for slow-speed operation without main engine or emergency operation at main engine failure.
Examples of products
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Training vessel
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400kW (with booster mode / propulsion mode)
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Ferry
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2,000kW (with plopulsion mode)
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Ferry
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2×1,600kW (with booster mode)
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13,000 TEU container ship
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3,300kW (direct online system)
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Nishishiba Electric Inverter control panels
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Inverter driven system controls speed of the motor to drive auxiliary machinery in ships at optimum speed and contributes energy-saving operation.
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Proven various applications such as cooling seawater pump, cargo pump, and L/D compressor for LNG ship.
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Proposal of energy saving with best speed control of cooling seawater pumps.
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By applying a sensor-less vector control system, motor can be controlled smoothly even at low-speed area with the high torque.
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By applying the vector control system with a sensor, application for crane control is possible.
Nishishiba Electric Drive device for electric driven winch
Nishishiba Electric Electric vibration balancer
Electric vibration balancer
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The electric balancer reduces the ship's hull vibration by generating the vibration of same frequency and negative phase to the ship’s hull vibration which is the secondary harmonics to the revolution of the main engine.
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Wide range of vibratory force, 11 to 154 kN.
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The electric balancer can be easily applied to the existing vessel.
Nishishiba Electric Generator
Totally enclosed with water cooled air cooler (IP44)
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Brushless A.C. generators meet various needs of marine field and output voltage from low voltage (A.C. 450V) to medium voltage (A.C. 11kV).
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Both diesel engine and turbine driven generator are applicable.
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From low voltage (A.C. 450V) to medium voltage (11kV) is applicable.
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Standard enclosure is either drip proof (IP22) or totally enclosed with water cooled air cooler (IP44).
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Highly reliable F class insulation system is applied.
Nishishiba Electric Motor
Protected drip proof (IP22)
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Induction motors are used to drive all kinds of machineries in ships such as bow-thrusters , F.D. fans and oil pumps for deck-machineries. Standard induction motors in compliance with JEM standard (and IEC standard) are also applicable.
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From low voltage (A.C.450V) to medium voltage (11kV) is applicable.
Nishishiba Electric Fan
Nishishiba Electric Explosion-proof axial-flow fan
Fans and blowers such as internal motor type axial flow fans, axial flow fans with bent-duct, turbo fans and sirocco fans used for ventilator of each division, forced draft fans, pump room fans and auxiliary blowers for the main engine are available. For ventilation of cargo hold of the vessel such as RO/RO, explosion-proof internal motor type axial flow fans are available from our standard products.
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