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Meidensha Corporation
Meidensha All Functionally Integrated Control And Protection System for Hydroelectric Power Station

Manufacturer: Meidensha Corporation
Features
This is an ultra-compact type control & protection system which offers high functions and low cost. It contributes the cost reduction for small & medium capacity hydroelectric power stations.
High reliability and safety
Space-saving
Labor saving in maintenance & inspection
We offer a rich variety of system offerings.
Specifications
Model Code
The MYGENEQUE series, an all-in-one integrated control and protection device, allows you to configure the system by selecting the required functions. Configuration examples are shown in the table below.
| Model | Sequence Control (S) | Excitation Control (E) | Governor Control (G) | Generator Protection (R) | Communication Functions | ||
|---|---|---|---|---|---|---|---|
| Ethernet Function (L) | Web Function (W) | Telecom Function (T) | |||||
| MYGENEQUE-SEGRLWT | ● | ● | ● | ● | ● | ● | ● |
| MYGENEQUE-SEGRLT | ● | ● | ● | ● | ● | ● | |
| MYGENEQUE-SEGR | ● | ● | ● | ● | |||
| MYGENEQUE-SEGL | ● | ● | ● | ● | |||
| MYGENEQUE-SGR | ● | ● | ● | ||||
| MYGENEQUE-SEG | ● | ● | ● | ||||
| MYGENEQUE-SET | ● | ● | ● | ||||
| MYGENEQUE-SR | ● | ● | |||||
| MYGENEQUE-EG | ● | ● | ● | ||||
| MYGENEQUE-T | ● | ||||||
(Note) Various combinations other than these are also available.
General Specifications
This product is available in two types: General-purpose specification type and Electric power specification type.
For the general-purpose specification type, the applicable standard is basically based on Rationalization Level “a” of the Electric Power Cooperative Research Vol. 57, No. 5, “Rationalization of Control and Protection Systems for General Hydroelectric Power Plants.” However, the protection elements comply with the Electric Power Standard B402. The electric power specification type satisfies the conventional Denkyoken (Electric Power Cooperative Research) standard for hydroelectric power.
| Item | Specifications | |
|---|---|---|
| Applicable Standards | “Modernization of Control and Protection Systems for General Hydroelectric Power Plants” (Electric Cooperative Research Vol. 57 No. 5), Power Utility Standard B402, etc. | |
| Cooling Method | Natural cooling | |
| Power Supply | Rated Voltage | External input power supply: 110V DC PLC power supply: ① 110V DC (Power utility specs) ② 24V DC (General-purpose specs) |
| Allowable Voltage Range | External input power supply: 90 to 140V DC | |
| Power Consumption | 33.1W or less | |
| Allowable Instantaneous Power Failure Time | 20ms | |
| Temperature | Ambient Temperature | 0 to 40°C (provided that no condensation or freezing occurs) |
| Storage Temperature | -25 to +70°C | |
| Relative Humidity | 50 to 80% RH | |
| Atmosphere | Must be free of explosive, flammable, corrosive gases, and dust | |
| Dielectric Strength | Power utility specs: All power terminals vs FG, 2000V AC for 1 minute (excluding surge removal circuits) General-purpose specs: All power terminals vs FG, 1500V AC for 1 minute (excluding surge removal circuits) | |
| Noise Resistance | Damped oscillatory wave surge, square wave impulse noise, radio frequency noise, electrostatic discharge noise | |
| Hardware Configuration | Power utility specs: Single configuration, [Option]: Redundant power supply configuration, Redundant system configuration General-purpose specs: Single configuration | |
System configuration
Very compact design system equipped with the necessary functions for hydroelectric power station
Reduction of control cables with the remote I/O function
The subunit equipped with I/O function can be remotely operated from a maximum of 500 m of the length of the optical fiber between the optical FA buses.
The control signal cables can be reduced with optical connection by installing a remote I/O panel equipped with the subunit on the floor of the hydraulic turbine and generator in the power station with a vertical shaft machine.













