Maintenance Information Collecting System (MICS)

 

 

This equipment collects, processes and stores Operating information of substations (e.g. voltage, current, watt-hour, fault information) and Maintenance information of facilities (monitoring of equipment condition, equipment error, total number of error counts) at all once.
Also, It displays the above information on a real time monitor, executes data processing and makes reports such as daily, monthly and annual reports.
This System contributes to an immediate collection of required information and laborsaving at substations because it interactively communicates with CC (central control center) or Maintenance section through network via telephone lines.

 

 

 

 

 

 

For DC substations

For AC substations

Type

CM-C

Construction

Independent Enclosed Panel with front & back doors

Dimensions of Panel

W700D700H2350 (standard)

Power Supply

DC 100V and AC 100V, 50Hz/60Hz

Display

TFT Liquid Crystal Screen (Panel computer)

Operation

Touch Panel Operation

Input Ratings

AC 110V, 5A, 50Hz/60Hz, DC 4mA - 20mA

Numbers of Inputs

AC

A/I: 8ch (for 3 phases)
Up to 30 adapters can be connected

A/I: 8ch (for 3 phases, single phase)
Up to 30 adapters can be connected

DC Bus

A/I: 6ch max.

 

DC Feeder

A/I: 10ch4 max.
D/I: 10ch4 max.

 

AC Bus, AC Feeder

 

A/I: 8ch, D/I: 16ch
Up to 6 adapters can be connected

Maintenance

A/I: 64ch max. (DC 4mA - 20mA)
D/I: 32ch max.

 

 

 

 

 

Information Measuring Equipment

 

 

This equipment collects information of DC bus and feeders at DC substations. For example, it collects and processes Load information (voltage, current, watt-hour), Fault information (feeder name, fault occurrence time, breaking current value, estimated short circuit current (MEB-5A type)) and Maintenance information. The information is displayed on a monitor and stored: further, an optional our Play Back Equipment makes reports of load information (daily and monthly reports), and displays waveform of fault information and maintenance information as well. It is also possible to transmit the data to RTU (remote terminal unit).
In addition, another fault locating type is available, which cooperates with the Transfer Trip Equipment (refer to DC Equipment for Electric Railways) and specifies a fault point when a fault occurs at DC feeder circuit. This is the first type in the industries as with a locating function.
Japan Patent Nos: 3293759

 

 

Type

MEB-5A

MEB-5AL

Locating Function

 

Construction

Panel Mounting Type

Power Supply

DC 100V

Rating

DC 1500V, Feeder: 5kA, Bus: 20kA

* Locating Function:

When a short circuit fault occurs on a railway track, the fault point shall be calculated using the distributed ratio of the fault current from both substations.

 

MEB-5A type

 

 

 

 

 

High Speed Current Transformer

 

 

This is a detector to measure making and breaking current values and each flowing time of a High speed circuit breaker and Disconnecting switch installed in substations with high accuracy. This transformer diagnoses the deteriorating conditions of the High speed circuit breaker and Disconnecting switch in cooperating with the ME system control panels at substations.

 

 

Type

CTD-3 (with Auxiliary Box BQ-A13 type )

Construction

Installing Type

Accuracy

1.0%

Response Speed

Less than 1ms

Power Supply

AC 100V/110V, 50Hz/60Hz

Rating

Input

:

10A, 50A, 100A

Output

:

4mA - 20mA (Load: Less than 500)

 

 

CTD-3 type (right : Auxiliary Box BQ-A13 type)

 

 

 

 

 

Lightning Arrester Leakage Current Detecting Equipment

 

 

At substations, lightning arresters are installed to prevent lightning damage. This equipment is a detector that continuously monitors leakage current of the arrestor and used to diagnose the deteriorating conditions of the arrestor in cooperating with ME system control panels at substations.

 

 

Type

DE-2A

Construction

Installing Type (Outdoor use)

Accuracy

5%

Power Supply

AC 100V, 50Hz/60Hz

Rating

AC 0.5mA

 

 

DE-2A type

 

 

 

 

 

Hall Generator Type Current Detector

 

 

This detector outputs the current and voltage in proportion to DC current by using Hall generator (Hall element). The response speed is so high (less than 1ms) that this detector is ideal for measuring fault waveform at DC feeder circuit.

 

 

Type

HF-20D

Construction

Installing Type (divided at installation)

Accuracy

Class 1.5

Power Supply

AC 100V/200V, 50Hz/60Hz

Rating

Input

:

DC 20kA

Output

:

DC 5V, 10V (Burden: More than 3k)
DC 10mA (Burden: Less than 800)
DC 20mA (Burden: Less than 400)

 

 

HF-20D type

 

 

 

 

 

Current Transformer

 

 

This Current Transformer uses an AC power supply and transforms DC current into the proportionate AC current (saturable reactor). This is used to measure the insulation of DC current.
Japan Patent Nos: 680292, 680293

 

 

Type

CTB, CTF

Construction

Installing Type (Indoor or Outdoor use)

Accuracy

Class 1.0

Power Supply

AC 100V/200V, 50Hz/60Hz

Rating

For One direction

:

3kA, 5kA, 7.5kA, 10kA, 15kA and more

For Both directions

:

3kA, 5kA, 7.5kA, 10kA, 15kA, and more

 

 

CTB type

 

 

Potential Transformer

 

 

This Potential Transformer uses an AC power supply and transforms DC voltage into the proportionate AC current (saturable reactor). This is used to measure the insulation of DC voltage.

 

 

Type

PTF-H

Construction

Installing Type (with Multiplier)

Accuracy

Class 1.0

Power Supply

AC 100V/200V, 50Hz/60Hz

Rating

600V, 750V, 1500V

 

 

PTF-H type

 

 

 

 

 

Isolator

 

 

This Isolator converts DC voltage or DC current into insulated output signals. In case the input is high voltage or huge current, a Divider or a Shunt should be used with.

 

 

Type

IA, IN, IC, IW series

Construction

Installing Type

Accuracy

Linearity: 0.2%

Withstand Voltage

AC 2500V, 5500V for 1minute

Power Supply

AC 100V/200V, 50Hz/60Hz

Rating

Input

:

50mV to 150V, 1mA to 100mA

Output

:

10mA, 10V, 4mA to 20mA and more

 

 

IN type

 

 

 

 

 

DC Indicating Instrument and Recording Instrument

 

 

a. DC Voltmeter
b. DC Ammeter
c. DC Demand Ammeter
d. DC Recording Voltmeter
e. DC Recording Ammeter

 

 

 

 

 

DC Integrating Instrument

 

 

a. DC Ampere-hour Meter
b. DC Watt-hour Meter
c. DC Watt-hour Meter for Positive and Negative

 

 

 

 

 

Field Tester

 

 

a. Field Tester for Fault Selective Equipment for DC Feeder
This tester is used for the characteristic test of fault selective equipment after the installation. To perform the test, flow the equivalent current to the test coil of a Fault Detector (used together with the fault selective equipment).

Type

FT-28 and more

Construction

Carrier Type

Accuracy

2.5%

Power Supply

DC 100V

Rating

5A (for less than 4000A) and more

* Utility model No: H6-57034 (under filing application)

 

 

b. Field Tester for Fault Selective Relay for AC Feeder
This tester is used for the fundamental wave characteristic test of fault selective relay for AC feeder. To perform the test, impress the voltage that is equivalent to the input current of relay.

Type

FT-12

Construction

Carrier Type

Power Supply

AC 100V, 50Hz/60Hz

 

 

c. Polarity Checker
This checker is used for the polarity checking of transformers for instruments. You can comprehensively check the polarity of the primary side of transformers to input terminals of relays without opening the circuit.

Type

KS-1D

Construction

Carrier Type

Power Supply

AC 100V or DC 6V (built-in battery)

 

 

d. Field Tester for Fault Locator
This tester is used for the individual test of Measuring Unit of Fault Locator. To perform the characteristic test, supply a simulating input to the measuring unit from this tester.

Type

TLA-1

TLX-4

Application

For AT system AC feeder circuit

For BT system AC feeder circuit

Construction

Carrier Type

Carrier Type
(Consists of Power Supply Unit and Reactance Unit)

Output Current

35A

20A

Reactance Unit

 

35(10 taps)

Power Supply

AC 100V, 50Hz/60Hz