Category: Hitachi

The term “digital substation” currently applies to substations using process bus technology. Process buses replace hard-wired connections with Ethernet communication.

Distributed intelligent electronic devices (IEDs) interconnected via a communication network based on IEC 61850 perform operation and control.

IEDs can measure and communicate variables such as current or voltage, or switching devices such as relays.

However, IEDs communicate digitally over serial or Ethernet networks for protection, measurement, metering, or monitoring.

Digital substations can use other communication methods, but IEC-61850 is the modern global communication protocol.

IEC 61850 is more than just a protocol, or even a set of protocols, it is a comprehensive standard that

It is a comprehensive standard that was designed from the ground up to operate on modern network technologies. It provides functionality not found in traditional communication protocols.

It provides interfaces to communication services and supports Generic Object Oriented Substation Events (GOOSE), Sampled Measured Values (SMV), logging and other services.

These unique features of IEC 61850 help to significantly reduce the costs associated with power system design, installation, commissioning and operation.

Asset Performance Management (APM) Solution Collects Data from Digital Substations

The Asset Performance Management (APM) solution collects data from digital substations and combines data collection, integration, visualization, and analytics to

APM encompasses concepts such as condition monitoring, predictive forecasting, and reliability-centered maintenance (RCM).

Digital Substation APM collects data from the substation’s IED and combines this data with other relevant asset data.

Combining data collection with a deeper understanding of an asset’s operating characteristics can provide significant value to operations and maintenance personnel by supporting predictive methods.

Applications

Separable cable connectors with shield are used for 12-24 kV XLPE-insulated single- or three-core cables with aluminum or copper conductors. They are suitable for use in standardized bushings with an A-type outer cone according to EN 50181.

Standards

– GB/T12706.4

– IEC 60502.4

Features

– Elbow cable connectors CSEB and straight cable connectors CSS-B are made of EPDM rubber with three layers: conductive inner layer, insulating layer and conductive outer layer.

The three layers of rubber are vulcanized to make the interface between the layers as perfect as possible. It has good UV, ozone and tracking resistance and is suitable for outdoor use.

The capacitance test points of the connectors are covered by conductive rubber caps to ensure complete shielding.

– Supplied in a three-phase kit including crimped cable lugs, terminal block, installation tool and ground wire, designed to ensure reliable installation

– Single- or three-conductor cable grounding kit must be used (can be ordered separately)

Pre-assembled shielded detachable connectors

Applications

Preformed shielded breakaway connectors for 12kV XLPE insulated single or three core cables with aluminum or copper conductors. Suitable for EN 50181 Type C interface

Standard

– GB/T12706.4

– IEC 60502.4

Standard

– GB/T 12706.4

– IEC 60502.4

Features

– Cold-shrinkable cable terminations are made of liquid silicone rubber, which is resistant to aging, UV, humidity, tracking and erosion. The high elasticity and shrinkage capacity ensures a strong and constant active pressure between the rubber and the cable, which can cope with the

expansion or contraction of the cable diameter during the load cycle.

– The geometric field control in the stress cone is integrated into the termination body, effectively dispersing the high electrical stresses at the stripping location of the cable screen.

CST 12-42 kV

– The terminations are supplied in kits for single or three-core cables. The kits include copper tape and a constant force spring for the ground connection. 3-core cable kits also include crutch seals and cold-shrink protective hoses.

Cable accessories and connectors

GIS Plug-In Terminals

(2# and 3# connections)

TP-A 42 kV, 800 A 7 and TP-A 42 kV, 1250 A

GIS plug-in terminals (2# interface)

TP-A 42 kV, 800 A

Applications

GIS plug-in cable termination for XLPE-insulated single- or three-core cables with 42 kV copper or aluminum conductors.

Suitable for standard bushings in 2# inner cone GIS switchgear or transformers according to EN 50181.

Standards

GB/T 12706.4

IEC 60502.4

Features

– The cable termination consists mainly of a plug-in contactor, a stress cone and a tail pipe.

– Plug-in contactor

– Compression cone connection, safe and reliable

– Easy to install, rigid fixing, no special tools required

– Stress cone

– Compact and portable

– 100% routine testing

– Electrical and safety reliability

– For installation tools, please contact us

Applications

The 520CMD01 Communication Unit is the CMU module of the RTU520 product family.

Its main tasks are

– Managing and controlling the RTU520 I/O modules via the serial I/O bus.

– Reading process events from the input modules.

– Sending commands to the output modules.

– Communication with the control system and the local HMI system via the serial interface (RS232) and the Ethernet 10/100BaseT interface.

– Communicates with sub RTUs, IEDs or multimeter devices via interface (RS485).

Communicates with sub-RTUs, IEDs, or multimeter devices through an interface (RS485).

– Manages the time base station and synchronisation I/O modules of the RTU520 product line.

– Handles the dialogue between the RTU520 product line via the LAN interface and the RTU520 product line via the LAN interface and a web browser.

The communication unit is mounted on a DIN rail together with the power supply and I/O modules.

The communication unit handles communication protocols based on Ethernet and UART characters.

The unit is available in two versions

– R0001: Real-time clock without battery buffer (RTC)

– R0002: Real-time clock with battery buffer (RTC)

Features

The Power Supply Unit 520PSD01 has the following features and functions:

– Natural convection cooling

– Electronic power limiting at the outputs

– Short-circuit protection at the output

– Input overvoltage protection

– Reverse voltage protection on inputs

– Potential-free isolation between inputs and outputs

– LEDs to monitor output voltage

When interacting with the 520CMD01. the input voltage (24 VDC) passes through the I/O module.

During power-up, the 520CMD01 switches the 24 V output voltage to the active voltage of the I/O module.

Applications

The Power Supply Unit 520PSD01 generates or switches 24 VDC, ±15 VDC, and 5 VDC for RTU520 systems.

The output power is sufficient to power an RTU520 with up to 16 I/O modules. The input voltage to the power supply unit is 24 VDC.

Applications

The module 520BID01 provides 16 galvanically isolated inputs for up to 16 binary process signals.

The input signals are scanned and processed with a time resolution of up to 1 ms. The input signals can be assigned to processing functions according to configuration rules.

The input signals can be assigned to processing functions according to configuration rules.

The module 520BID01 can process the following types of signals or combinations of signals:

– 16 time-stamped single-point messages (SPI)

– 8 time-stamped double-point messages (DPI)

– 2 8-bit digital measured values (DMI8)

– 1 16-bit digital measurement (DMI16)

– 16 integrated totals (max. 25 Hz) (ITI)

– 2 step position information, 8 bits each (STI)

– 2 bit string inputs, 8 bits each (BSI8)

– 1 16-bit bit string input (BSI16)

– or a combination of these signal types

The module is available in two versions (rubrics):

– 520BID01 R0001: Process voltage 24 to 60 VDC.

There are LEDs for each input and a common loop for each of the 8 inputs.

– 520BID01 R0002: Process voltage 110 to 125 V DC.

Each input is signalled by an LED and each of the 8 inputs has a common loop.

Applications

The binary output module 520BOD01 controls 8 binary process signals via relay contacts.

The output signals can be assigned to process functions according to configuration rules.

The module 520BOD01 can process the following types of signals:

– Single or dual command (SCO or DCO), 1-pole or 2-pole outputs, no checksum (n select 1).

– Single or dual commands (SCO or DCO) with 1.5- or 2-pole output, no checksum (1 of n) Single or dual commands (SCO or DCO) with 1.5- or 2-pole output, no checksum (1 of n)

– Adjustment Step Command (RCO), 1 or 2 poles

– Digital Setpoint Command, 8-bit, No Strobe (DSO8)

– Digital setpoint command, 8-bit, no strobe (DSO8) Bit-string output, 1 or 8-bit (BSO1 or BSO8)

Modules allow switching voltages up to 150 V DC or up to 8 A continuous current. 8 A continuous current.

Characteristics

Binary Outputs

The binary outputs are relay contacts.

The 8 outputs are isolated from each other. In addition, they are isolated from the internal electronics by means of an optocoupler.

All 8 relay contacts have independent outputs and there are no common circuits.

The command outputs to the process equipment can be executed either directly or in conjunction with the command output monitoring module.

The Command Output Monitoring Module checks the output circuits (1 out of n times). For more details, refer to the Command Output Monitor data sheet.

The following modules with command output monitoring functions are supported:

– 560CIG10

– 560CID11

– 520CSD01

Applications

The 520AID01 module records up to 6 analogue measured values.

The module 520AID01 can process the following types of signals

Signals:

– Analogue measured values (AMI)

– Floating-point measurement information (MFI)

The following measurement ranges can be configured

520AID01 R0001:

– ± 2.5 mA

– ± 5 mA

– ± 10 mA

– ± 20 mA

The following measurement ranges can be configured as

520aid01 r0002:

– ± 1 V DC

– ± 10 V DC voltage

Additional valid ranges and real-time zero signals can be generated beyond these ranges by means of conversions in the communication unit (CMU).

The module is available in two versions (rubrics):

– R0001: Current measurement version

– R0002: Voltage measurement version

Applications

Analogue control outputs for sequential or closed-loop control, display instruments, measurement recorders, etc,

The analogue output board 520AOD01 can be connected to measuring and recording instruments, etc.

The board 520AOD01 has 2 output channels which can be configured for different voltage or current output ranges.

The module 520AOD01 can process the following types of signals:

– Analogue setpoint commands

– Floating-point setpoint commands

The following output ranges can be configured independently for each channel via on-board switches:

– ± 2.5 mA

– ± 2.5 mA ± 5 mA

– ± 10 mA

– ± 20 mA (4…20 mA) .20 mA)

– ± 1.25 VDC

– ± 2.5 VDC

– ± 5 V DC

– ± 10 V DC

Output formats unipolar, bipolar or real-time zero (4 … 20 mA) are configurable via software parameters. 20 mA) can be configured via software parameters.