GE Kelman MULTITRANS User manual

GEDE-GA_M-DLIS-TE.MA-003 Rev 3.0 18-Jan-16
GE
Grid Solutions
Kelman MULTITRANS™
User Guide
Transformer Oil
Dissolved Gas and Moisture Monitor

Contents
1Introduction.................................................................................................................................... 5
1.1 Product Overview................................................................................................................... 5
1.2 Manual Scope......................................................................................................................... 5
2Safety.............................................................................................................................................. 6
2.1 Symbols .................................................................................................................................. 6
2.2 Warnings ................................................................................................................................ 6
2.3 Hazardous Substances.......................................................................................................... 7
3Technical Specification .................................................................................................................. 8
4Compliance..................................................................................................................................... 9
5Power............................................................................................................................................10
5.1 Introduction..........................................................................................................................10
5.2 Cold Start ..............................................................................................................................10
5.3 Battery ..................................................................................................................................11
5.4 Power-Down Procedure ......................................................................................................12
6LCD Panel......................................................................................................................................13
6.1 LCD Notifications.................................................................................................................. 13
6.1.1 Startup ..........................................................................................................................13
6.1.2 Manual Measurements................................................................................................15
6.1.3 Manual Oil Sampling ....................................................................................................16
6.1.4 Further System Specifications.....................................................................................17
6.2 Error Notification.................................................................................................................. 19
6.2.1 Error codes ...................................................................................................................20
7Manual Oil Sampling ....................................................................................................................21
7.1 Sampling Arrangement........................................................................................................21
7.2 Sampling Process.................................................................................................................22
8Air Filter Cleaning .........................................................................................................................24
9Oil Filter Cleaning ......................................................................................................................... 26
10 Communications......................................................................................................................27
11 Modbus Protocol ......................................................................................................................27
12 Service Logs..............................................................................................................................27
13 Technical Support .................................................................................................................... 27
Time Sync Implementation..........................................................................................28Appendix A
Contact & Copyright Details ................................................................................................................30

Table of Figures
Figure 5—1: Power switch....................................................................................................................10
Figure 5—2: LED indicator lights & fuse holder...................................................................................10
Figure 5—3: Coin cell battery............................................................................................................... 11
Figure 5—4: Standby mode .................................................................................................................12
Figure 5—5: Power switch....................................................................................................................12
Figure 5—6: Operation mode...............................................................................................................12
Figure 6—1: Inside view .......................................................................................................................13
Figure 6—2: Boot ..................................................................................................................................14
Figure 6—3: Version .............................................................................................................................14
Figure 6—4: Standby mode .................................................................................................................14
Figure 6—5: Three sources ..................................................................................................................14
Figure 6—6: Peripheral scheduler........................................................................................................15
Figure 6—7: Start a manual measurement ........................................................................................ 15
Figure 6—8: Oil switching..................................................................................................................... 15
Figure 6—9: Stop a measurement.......................................................................................................16
Figure 6—10: Measurement data........................................................................................................ 16
Figure 6—11: Measurement in progress.............................................................................................16
Figure 6—12: Standby mode ...............................................................................................................16
Figure 6—13: Countdown & Purge ......................................................................................................17
Figure 6—14: Take sample & Standby.................................................................................................17
Figure 6—15: Communication channels............................................................................................. 17
Figure 6—16: Networking ....................................................................................................................18
Figure 6—17: GSM / GPRS modem......................................................................................................18
Figure 6—18: LCD error format........................................................................................................... 19
Figure 6—19: LCD error example.........................................................................................................19
Figure 7—1: Oil filters and sampling port (front view) ........................................................................21
Figure 7—2: Valve orientation..............................................................................................................21
Figure 7—3: Sampling assembly .........................................................................................................21
Figure 7—4: Luer fitting on assembly.................................................................................................. 21
Figure 7—5: Manual oil sampling flowchart .......................................................................................22
Figure 8—1: Air filter .............................................................................................................................24
Figure 8—2: Metallic hood ................................................................................................................... 25
Figure 9—1: Oil filter ............................................................................................................................. 26
List of Tables
Table 3—1: Technical specification ....................................................................................................... 8
Table 4—1: Type tests ............................................................................................................................ 9
Table 5—1: External LED status indicators .........................................................................................10
Table 6—1: Errors .................................................................................................................................20
Table A—1: Timing................................................................................................................................28
Table A—2: UNIX time registers........................................................................................................... 28

Table A—3: Access flags.......................................................................................................................29
Table A—4: Modifier flags..................................................................................................................... 29

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 5 of 30
1INTRODUCTION
1.1 Product Overview
The MULTITRANS™(herein referred to as the product) is an on-line DGA (Dissolved Gas
Analysis) system for transformer diagnostics. It is designed to monitor up to three
separate oil tanks or a bank of three single-phase transformers in close proximity. The
product measures the following key fault gases in the transformer oil: hydrogen,
methane, ethane, ethylene, carbon monoxide, carbon dioxide and acetylene.In
addition the product also measures oxygen, nitrogen as well as moisture in the oil and
the transformer load current. Such data provides insight on transformer condition
criteria, such as developing faults, paper degradation and electrical arcing. Once
installed, operation is straightforward. All results are stored within the product, but can be
downloaded to a PC for analysis.
The key features and characteristics are summarised as follows:
Utilises dynamic headspace sampling to extract target gases from the oil sample.
No consumables, such as carrier gases are required.
Accurate results are available as often as once per hour.
Minimal maintenance*.
Uses highly accurate and stable Photo-acoustic Spectrographic technology.
Fully embedded microprocessor with non-volatile internal memory storage for
10,000 records.
Stainless steel outdoor-rated IP55 enclosure connected to the transformer by
robust stainless steel tubing.
All gas sensing is carried out internally –no external gas sensors.
Transformer load tracking is available.
Six user-configurable relay contacts based on absolute gas and moisture values.
Two user-configurable sunlight-visible LED arrays on the exterior of the enclosure –
one red for alarm, one yellow for caution.
Two standard sunlight-visible LED arrays –green for power, blue for service.
Communication options include: Ethernet, RS-232, Cellular modem (GSM/GPRS),
PSTN modem, RS-485 and Fibre Optic. Other options may be available on request.
Internal USB connection provided for commissioning and service, or local data
download.
*Note: The only recommended maintenance is periodic cleaning of the air filters, in-line oil filter and
battery replacement.
1.2 Manual Scope
This guide outlines the use of the LCD panel, manual DGA sampling function and general
maintenance activities.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 6 of 30
2SAFETY
2.1 Symbols
The following symbols are used in this manual and/or on this product:
General Warning or Caution. Refer to the Installation Manual / User
Guide to prevent injury or damage to equipment.
Electrical Hazard. Risk of electric shock.
Primary Protective Earth connection.
Hot surfaces may be present.
2.2 Warnings
The following warnings must be observed:
The minimum ambient temperature for installation and service activities is
−10 °C.
If the equipment is installed or used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
If working at height, third parties must have received appropriate training for
working at height prior to work commencing. This includes, but is not limited to
"Working at height training".
If working at a height greater than 4 feet or at a height greater than that
stipulated by national or site regulatory requirements, it is the responsibility of
the user to ensure that planned work complies with those requirements.
The user shall also ensure that any third-party equipment, such as an approved
platform, scaffold or lift is suitable and safe before commencing work. Ladders
or improvised platforms do not meet GE service engineer requirements.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 7 of 30
Once installed, this product may have more than one source of supply.
Disconnect all supplies at their source before accessing the cabinet for
servicing. Follow the site lockout-tagout (LOTO) procedure.
Disconnection from the supply is achieved through the external circuit breaker
or switch.
Ensure all power sources, including relays, are de-energised as stipulated by
lockout-tagout (LOTO) requirements before removing inner covers.
The product is operated with the door shut under normal use. The door shall be
kept locked and should only be opened for service access by suitably qualified
and authorised service personnel. During service access, hazardous voltages
are accessible.
Only GE-trained and certified personnel may commission GE products.
Commissioning tasks include making any connections and/or performing any
work within the enclosure, or performing tasks such as purging the oil circuit
between the transformer and the product, and/or all first start-up procedures
relating to equipment or firmware/software.
The product provides IP55 level water spray protection. It is possible for a water
deluge system to exceed IP55 thresholds depending on the location, pressure
and direction of the water jets. Therefore should customers require testing a
water deluge system in the area in which the product is installed, GE
recommends powering down the product and draping it with a suitable
waterproof covering.
2.3 Hazardous Substances
The gases measured in the product are extracted from the oil and expelled to the
atmosphere. These gases are at concentrations that are nonflammable, nontoxic and
quickly diluted in the surrounding atmosphere. The expelled gases are not hazardous to
health or life.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 8 of 30
3TECHNICAL SPECIFICATION
The product meets the following technical specification as outlined in Table 3—1.
Table 3—1: Technical specification
PARAMETER
VALUE/MEETS
GAS MEASURED
MEASUREMENT RANGE (ppm) and accuracy
Hydrogen (H2)
5 –5,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Methane (CH4)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Ethane (C2H6)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Ethylene (C2H4)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Acetylene (C2H2)
0.5 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Carbon Monoxide (CO)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Carbon Dioxide (CO2)
20 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Oxygen (O2)
100 –50,000 Accuracy ± 10% or ± LDL (whichever is greater) *1
Nitrogen (N2)
(Available on free-breathing transformers
only)
10,000 - 100,000 ppm Accuracy ± 15% or ± LDL (whichever is
greater) *1
Moisture (H2O)
0 –100% RS (given in ppm)
ENVIRONMENTAL
External temperature range
−40 °C to 55 °C
Oil temperature range
−20 °C to 120 °C*2
Altitude
Up to 2000 m
Atmospheric pressure
Up to 1050 mbar
Operating humidity
10 –95% RH non-condensing
Enclosure
IP55
Weight
76.5 kg (169 lb)
POWER REQUIREMENTS
110 / 230 V AC*3 (factory set), 50/60 Hz, 8 A Max
Single phase Alarm Relays: NO and NC
provided
3 A 250 V AC, 150 mA 300 V DC*4, 200 mA 125 V DC, 3 A 30 V DC
Fuses *5
10 A 500 V (Cooper Bussmann BAF), 10x38 mm
MEASUREMENT FREQUENCY
Variable –Once per hour to once every 4 weeks
*1 Note: Accuracy quoted is the accuracy of detectors during calibration; gas-in-oil measurement
accuracy may also be affected by sampling and/or oil type.
*2 Note: Based on testing carried out using VOLTESSO™ 35 mineral oil over a ¼ in. pipe run of 10 metres
or less from oil supply or return valve to product connection point, and on transformer oil supply valve
volumes of 200ml or less. For oil temperatures colder than -20 ºC, GE recommends the use of heat trace
cabling on piping.
*3 Note: Voltage ranges:
Set Voltage (V AC)
Minimum I/P Voltage (V AC)
Maximum I/P Voltage (V AC)
110
100
121
230
207
253
*4 Note: Maximum DC breaking capacity for a resistive load.
*5 Note: Use only the approved and recommended fuse to ensure continued fire protection and
compliance.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 9 of 30
4COMPLIANCE
The product is designed to meet the following type tests as listed in Table 4—1:
Table 4—1: Type tests
Category
Standard
Class/Level
Test
EMC Emissions –
EN 61326-1:2006
CISPR 11
A
Radiated & Conducted Emissions
FCC Part 15
Meets the requirements of A
Radiated & Conducted Emissions
EN 61000-3-2
A
Harmonic Current Emissions
Limits
EMC Immunity –
EN 61326-1:2006
EN 61000-4-2
IV
Electrostatic Discharge
EN 61000-4-3
III
Electromagnetic Field Immunity
EN 61000-4-4
III
Electrical Fast Transients
EN 61000-4-5
III
Surge Immunity
EN 61000-4-6
III
Conducted RF Immunity
EN 61000-4-8
IV & V
Magnetic Field Immunity
IEC 61000-4-9
X
Pulsed Magnetic Field Immunity
IEC 61000-4-10
X
Damped Oscillatory Magnetic
Field Immunity
EN 61000-4-11
III
Voltage Dips & Interruptions
IEC 61000-4-12
X 2.5 kV & 1kV
Oscillatory Wave
IEC 61000-4-18
X
Damped Oscillatory Wave
EN 61000-3-3
Pst 10 min, Plt 120 min
Voltage fluctuations & flicker
EN 60255-5
5 kV, 2 kV & 500 V DC
Impulse, Dielectric & Insulation
resistance testing
Environmental
IEC 60068-2-1
−40 °C
Cold
IEC 60068-2-2
55 °C
Dry Heat
IEC 60068-2-6
10 –150 Hz, 0.5 g operation
10 –150 Hz, 0.5 g endurance
Vibration
IEC 60068-2-30
55 °C, 95% RH
Damp Heat
EN 60529
IP55
Degree of Protection
Safety
IEC 61010-1
2010
EN 61010-1
2010
UL 61010-1
2012

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 10 of 30
5POWER
5.1 Introduction
The product is powered up by pressing the Power switch located inside the product
towards the bottom right-hand side (see Figure 5—1). The mains fuse holder for the
product is shown in Figure 5—2.
Figure 5—1: Power switch
Figure 5—2: LED indicator lights & fuse holder
The product uses four external sunlight-visible LEDs on the front door. Each LED has two
states –‘Off’ (-) or ‘On’as outlined in Table 5—1.
Table 5—1: External LED status indicators
Mode
Alarm (red) LED
Caution (yellow) LED
Power (green) LED
Service (blue) LED
Power Off
-
-
-
-
Normal
-
-
On
-
Alarm
On
-
On
-
Caution
-
On
On
-
Service
-
-
On
On
5.2 Cold Start
If the product is powered up in cold conditions (less than −10 °C), the product initiates the
following cold-start sequence before a measurement can commence. The internal heater
in zone 1 automatically switches on to increase the internal temperature to within the
PGA operational temperature range. The system does not fully power up until the
working temperature in zone 1 reaches −10 °C, after which the system becomes
operational. Lights for the system power supplies are situated on the circuit board at the
rear as shown in Figure 5—2.
Note: Once the DC power supply resumes, the internal temperature of the product may take several
hours to reach working temperature before a measurement cycle commences.
24 V DC
LED
12 V DC
LED
Fuse holders for
mains input power