Treetech GMP User Manual
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Treetech GMP User Manual

Gas and moisture sensor
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GMP
Gas and Moisture Sensor

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Summary of Contents for Treetech GMP

  • Page 1 Gas and Moisture Sensor...

  • Page 2: Table Of Contents

    General symbols ..........................7 1.4.3 Minimum profile recommended for GMP operator and maintainer ..........8 1.4.4 Environmental and voltage conditions required to installation and operation of the GMP ..... 8 1.4.5 Test and installation instructions....................... 9 1.4.6 Cleaning and decontamination instructions ..................10 1.4.7...
  • Page 3 Resolution of problems unrelated to GMP self-diagnosis ..............52 Commissioning ......................54 Technical data and type tests ..................55 Technical data ............................55 Type tests ............................. 57 Purchase order specification ..................58 [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 4 Figure 7 - Connections and grounding in the RS-485 communication network ............ 26 Figure 8 - GMP front display ..........................28 Figure 9 - Self-diagnosis display ..........................31 Figure 10 – Structure of menus and submenus..................... 34 [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 5 Table 5 - Typical values of water solubility in oil types (A) Table 6 - Typical values of water solubility in oil types (B) Table 7 - List of analog output parameters [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 6: Foreword

    9.610/98. 1.1.1 Disclaimer Treetech Sistemas Digitais reserves the right to make changes without prior notice in all products, circuits and functionalities described herein with the aim of improving their reliability, function or design. Treetech Sistemas Digitais does not assume any liability resulting from application or use of any product or circuit described in here and does not transmit any licenses or patents under its rights, not even third party rights.

  • Page 7: General And Safety Information

    1.4 General and safety information This section presents relevant aspects of safety, installation and maintenance of the GMP. 1.4.1 Safety symbols This manual uses three types risk classification, shown below: Warning: This symbol is used to alert the user of potentially dangerous operating or maintenance procedures in which higher caution must be taken.

  • Page 8: Minimum Profile Recommended For Gmp Operator And Maintainer

    2. Be trained in the use of PPEs, CPEs and first-aid; 3. Be trained in the working principles of the GMP, as well as its configuration; 4. Follow regulatory recommendations regarding interventions in any type of equipment included in an electric power system.

  • Page 9: Test And Installation Instructions

    Special attention must be given to the installation of the GMP, including the type and gauge of cables, installation location and commissioning, including the correct parameterization of the equipment.

  • Page 10: Cleaning And Decontamination Instructions

    1.4.6 Cleaning and decontamination instructions By having IP66 protection, cleaning the GMP can be done easily. You can use a cloth with soap, detergent diluted in water or even ethyl alcohol to clean the entire surface of the equipment.

  • Page 11: Technical Support

    All parts of this equipment must be supplied by Treetech, or by one of its accredited suppliers, according to its specifications. If the users wish to acquire them in another way, they must strictly follow Treetech’s specifications for this purpose. Thus, performance and safety for the user and the equipment will not be compromised.

  • Page 12: Warranty Terms And Conditions

    1.6 Warranty terms and conditions The Gas and Moisture Specialist Sensor – GMP will be guaranteed by Treetech for a period of 2 (two) years, counted from the date of purchase, exclusively against any manufacturing or quality defects that cause it to be improper for regular use.

  • Page 13: Introduction

    For this reason, Treetech's GMP performs online monitoring of hydrogen dissolved in the insulating oil, since it is considered a key gas for defect detection in equipment immersed in oil.

  • Page 14: Characteristics And Functions

    In addition, GMP also monitors the moisture in the oil, a factor that can influence the dielectric strength of the oil, cellulosic insulation and the rate of aging of these insulators. To ensure monitoring and enable good moisture control, the GMP measures two important factors: water content and relative saturation.

  • Page 15: Basic Functioning Philosophy

    In addition to the main inconvenience presented above, periodic DGA also presents the risk of error due to failure in the sample collection and transport processes to the laboratory and the operation of the analysis equipment, thus requiring specialized labor. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 16: Continuous Monitoring Of Dissolved Gases In Oil

    The sensors used by the GMP to measure gas and humidity concentrations work with a technology using semiconductors, which eliminates cross-sensitivity to other combustible gases. Once energized, the GMP initializes the gas sensors for a period of 1 hour before actually starting this measurement.

  • Page 17: Representativeness On The Measurement

    For the entire process of measuring dissolved hydrogen as described above to be effective for the equipment diagnosis, it is necessary that the oil in contact with the GMP sensor (and consequently the dissolved hydrogen in it) is representative of the general situation of the transformer.

  • Page 18: Project And Installation

    ● Free flow valve (ball or gate) for GMP access to insulating oil. Optional items for system composition: ● GMM-MMI remote interface module, used if the GMP is installed in a difficult-to- access location, making it difficult to read the measurements on its local display, or SD+ for expanding the output or communication interfaces.

  • Page 19: Mechanical Installation

    The GMP has a 288 mm rod for connection. The free length of the rod for insertion of the GMP into the oil flow is approximately 218 mm. Thus, the total distance from the valve tip to the interior of the pipe or tank must be less than 218 mm, as shown in Figure 4, to ensure that the end of the rod is inserted into the oil flow.

  • Page 20: Mechanical Installation Procedure

    Figure 4 - Distance for sensor installation 3.2.1 Mechanical installation procedure a) Remove the plastic cover that protects the end of the rod during transport. b) Loosen the nut (1) of the fastening element (2). [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 21 Using a size 22 wrench, screw and tighten the fastening element (2) on the transformer valve. It is not necessary to use Teflon tape, as the sealing is performed by the sealing ring (o-ring) of the equipment. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 22 Using a size 22 open-end wrench, tighten the nut (1) onto the fastening element (2), preventing undue displacement of the rod. h) Proceed with the electrical installation, as described in the following topic. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 23: Electric Installation

    A circuit breaker must be used immediately before the power input (Universal powering of 38 to 265 Vdc or 85 to 265 Vac, ≤ 8 W, 50/60 Hz), which corresponds to pins 1 and 2 of the GMP. This circuit breaker must have the number of poles corresponding to the number of phases used in the supply –...

  • Page 24: Figure 5 - Gmp Electrical Connection Diagram

    Figure 5 - GMP electrical connection diagram Figure 6 - GMP socket with numbered terminals Special attention must be paid to the correct connection of components to the GMP at all stages of installation. Errors in connecting the equipment can cause risks or even irreversible damage to the operator.

  • Page 25: Input And Output Terminals

    5.8.4. POWER AND GROUND The GMP has a universal power input (38 to 265Vdc or 85 to 265Vac, 50/60 Hz). Powering the GMP through the substation's auxiliary services is advisable, particularly when it is integrated into a serial communication network for data collection purposes for supervisory or monitoring systems.

  • Page 26: Figure 7 - Connections And Grounding In The Rs-485 Communication Network

    Vdc/Vac. The thermal conduction capacity (limit due to the Joule effect) of each individual relay is 1 A, but the total current at terminal 5 (common point) must not exceed 2 A. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 27: Table 3 - Maximum Load Of Analog Output Options

    (see topic 5.8.4), according to the measurement selected for indication. To minimize interference and induction, it is advisable to use a shielded twisted cable, grounded at only one end, to connect the analog outputs to the measurement system. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 28: Operation

    Operation All operations on the Gas and Moisture Specialist Sensor - GMP can be performed through the keyboard on its front panel. The measurements of H O, temperature and alarm conditions are indicated on the display by the signaling LEDs.

  • Page 29: Key Functions

    (P) to exit the alarm memory screen. 4.4 Auxiliary indications When the GMP is in the initial menu, it is possible to consult auxiliary indications on the display by pressing the (enter) key. These are the indications in sequence, it is possible to navigate between them using the arrows: [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 30: Self-Diagnostics

    ● UTC – Value set for UTC time zone. 4.5 Self-diagnostics The GMP has a self-diagnosis system that allows the equipment to detect and indicate, through specific circuits and algorithms, the presence of any anomaly in its operation, alerting the user of the need for intervention, facilitating the diagnosis of the occurrence, thus increasing the reliability of the information provided by the equipment.

  • Page 31: Figure 9 - Self-Diagnosis Display

    To clear self-diagnoses that are no longer active, just hold (enter) for 5 seconds. Note that only non-active self-diagnoses will be cleared from memory. Press (P) to exit the self-diagnosis memory screen. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 32: Parameterization

    4-digit password to access the menu, enter the password using the arrow keys and press (enter) to confirm. b) If the password is correct, the GMP will display the first submenu (CLCK) of the programming menu. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 33: Structure Of Parameterization Menus

    In case the new adjusted password is lost or forgotten, Treetech can assist in the recovery if the number shown on the screen is informed when the equipment requests the password.

  • Page 34: Figure 10 - Structure Of Menus And Submenus

    Figure 10 – Structure of menus and submenus [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 35: Clck Menu

    Select the current time. ADJUSTMENT RANGE: 0 to 23, in steps of 1. DEFAULT VALUE: MIN: Select the current minute. ADJUSTMENT RANGE: 0 to 59, in steps of 1. DEFAULT VALUE: [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 36: Conf Menu

    4.8 – 9.6 – 19.2 – 38.4 – 57.6 – 115.2 kbps. DEFAULT VALUE: 9.6 kbps. PRT: Select the communication protocol, Modbus® (MDB) or DNP3 (DNP). ADJUSTMENT RANGE: MDB – DNP. DEFAULT VALUE: MDB. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 37 25 milliseconds. DLRX: Parameter responsible for defining the interframe waiting time for receiving data. ADJUSTMENT RANGE: 5 to 255 milliseconds, in steps of 1 millisecond. DEFAULT VALUE: 5 milliseconds. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 38: Oil Menu

    1.0 to 9.9, in steps of 0.1. DEFAULT VALUE: 7.0. Complement of parameter A1, to compose the typical value. ADJUSTMENT RANGE: 0 to 999, in steps of 1. DEFAULT VALUE: 895. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 39: Table 6 - Typical Values Of Water Solubility In Oil Types (B)

    DEFAULT VALUE: 10.0 %. RSNP: Nominal point of relative saturation filter equal to measurement offset. ADJUSTMENT RANGE: 0 to 8 %, in steps of 0.1 %. DEFAULT VALUE: 0.0 %. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 40: Menu H2

    TTCH: Time constant used in low-pass filters to calculate the evolution trend of H ADJUSTMENT RANGE: 1 to 720 hours, in steps of 1 h. VALOR PADRÃO: 168 hours. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 41: Alarm Menu

    H2H: Value for issuing the alarm for high concentration of hydrogen in oil. ADJUSTMENT RANGE: 30 to 5000 ppm, in steps of 1 ppm. DEFAULT VALUE: 200 ppm. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 42 40 %. RSVH: Value for issuing the alarm for very high water relative saturation. ADJUSTMENT RANGE: 0 to 100 %, in steps of 1 %. DEFAULT VALUE: 50 %. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 43 Determines a hysteresis value for the alarms, preventing their states from being affected by small fluctuations in the variables. ADJUSTMENT RANGE: 0 to 20 % in steps of 1 %. DEFAULT VALUE: 10 %. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 44: Advc Menu

    TIME parameter, see the memory information table in topic 8.1 for more information. ADJUSTMENT RANGE: 1 to 1440 minutes, in steps of 1 minute. DEFAULT VALUE: 60 minutes. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 45: Rlay Submenu

    YES – NO – ADVC DEFAULT VALUE: TRND: Assigns all alarms related to the evolution trend as a condition for relay actuation. ADJUSTMENT RANGE: YES – NO – ADVC DEFAULT VALUE: [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 46: Rdet - Detailed Relays

    O content converted at 20 °C as one of the variables that actuate the relay. ADJUSTMENT RANGE: YES – NO. DEFAULT VALUE: YES for relay 3, NO for other relays. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 47 YES – NO. DEFAULT VALUE: WTH: Defines the alarm for high water content trend as one of the variables that actuate the relay. ADJUSTMENT RANGE: YES – NO. DEFAULT VALUE: [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 48: Rlyt Submenu

    1 and 2. ADJUSTMENT RANGE: 0 - 1, 0 - 5, 0 - 10, 0 - 20 or 4 - 20 DEFAULT VALUE: 4 - 20 mA. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 49: Anot Submenu

    Command to perform a test on the analog outputs 1 (ANO1) and 2 (ANO2). An output percentage value is set to test its match within the parameterized range. ADJUSTMENT RANGE: 0 to 100 %. DEFAULT VALUE: 0 %. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 50: Problems Resolution

    B, for example, alarms 1, 2 and 8 are currently active, because in hexadecimal numbers B = 1 + 2 + 8. The tables below show all GMP self-diagnosis codes and procedural recommendations for each case. Digit 1...
  • Page 51 Failure in sensor Contact Treetech's technical 0400 available on communication support measuring board Inappropriate Board temperature Contact Treetech's technical 0800 installation location. greater than 105 °C support Device in overheating. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 52: Resolution Of Problems Unrelated To Gmp Self-Diagnosis

    6.2 Resolution of problems unrelated to GMP self-diagnosis If you encounter difficulties or problems in the operation of the GMP that are not related to any self-diagnosis situation, we suggest consulting the possible causes and simple solutions presented below.
  • Page 53 End of scale - EOS1/EOS2 Check the correct connection of the cables and terminals Incorrect mA output (polarity, any short circuits, open links) between the GMP and the cable connection mA output measuring system. Check the use of shielded cable and grounding at a single point of the cable mesh.

  • Page 54: Commissioning

    (for example, through continuity tests). 2. Energize the GMP with voltage in the range of 38 to 265 Vdc or 85 to 265 Vac, 50 or 60 3. Carry out all the parameterization of the GMP, according to the instructions of item 5 - Parameterization contained in this manual.

  • Page 55: Technical Data And Type Tests

    Maximum conduction 1 A, as long as the sum of the currents of the 4 relays does not current exceed 2 A at the common point (terminal 5) [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 56 1...1,440 minutes 55,000 records – 6.2 years with a 60-minute interval; Capacity 55,000 records – 37.6 years with a 6-hour interval; 55,000 records – 50.2 years with an 8-hour interval; [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

  • Page 57: Type Tests

    Modbus RTU, DNP3 RTU protocols 8.2 Type tests The GMP is a device built on the Gas Monitor platform, on which the type tests presented were carried out: Type tests (Gas platform) Immunity to surges (IEC 60255-22-5 and IEC 61000-4-5)

  • Page 58: Purchase Order Specification

    9 Purchase order specification In the GMP purchase order, the following items must be specified: 1. Product name Gas and Moisture Specialist Sensor - GMP. 2. Quantity The number of units. [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...
  • Page 59 Brasil Treetech Tecnologia Ltda Rua José Alvim, 112, Centro CEP 12.940-750 – Atibaia/SP +55 11 2410-1190 comercial@treetech.com.br www.treetech.com.br [ Manual - GMP | MAN-001 | 02/24/2022 | Review: 1.00]...

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