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MR ECOTRAC SMART BREATHER Operating Instructions Manual

Dehydrating breather
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THE POWER BEHIND POWER.
Operating instructions
®
ECOTRAC
SMART BREATHER. Dehydrating
breather
10944490/00 EN

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Summary of Contents for MR ECOTRAC SMART BREATHER

  • Page 1 THE POWER BEHIND POWER. Operating instructions ® ECOTRAC SMART BREATHER. Dehydrating breather 10944490/00 EN...
  • Page 2 Generally the information provided and agreements made when processing the individual quotations and orders are binding. The product is delivered in accordance with MR's technical specifications, which are based on information provided by the customer. The customer has a duty of care to ensure the compatibility of the specified product with the customer's planned scope of application.

  • Page 3: Table Of Contents

    Table of contents Introduction .............. 6 Manufacturer .................. 6 Completeness.................. 6 Subject to change without notice............ 6 Safekeeping.....................  7 Notation conventions ................ 7 1.5.1 Hazard communication system ............ 7 1.5.2 Information system ................ 8 1.5.3 Instruction system..................  8 1.5.4 Typographic conventions .............. 9 Safety................
  • Page 4 Connecting the RS485 interface and configuring Modbus .... 60 6.9.1 4-conductor full duplex................  61 6.9.2 2-conductor half duplex ............... 62 6.9.3 Notes on connecting to the MR sensor bus ........ 63 6.9.4 ECOTRAC® SMART BREATHER ............ 67 6.9.5 Modbus settings ................... 69 6.10 Closing the terminal box.............. 70...
  • Page 5 Commissioning ............ 76 Device self test during commissioning .......... 77 Adjusting Modbus settings.............. 78 Operation.............. 79 Error messages and troubleshooting ...... 82 Error messages .................. 84 Status messages................... 86 Fuse ....................... 86 Replacing the battery (CR2032) ............ 89 Contaminated silica gel................ 90 Maintenance, inspection and care......... 91 10.1 Maintenance ..................

  • Page 6: Introduction

    93059 Regensburg Germany Tel.: +49 941 4090 0 Internet: www.shop.reinhausen.com MR Reinhausen customer portal: https://portal.reinhausen.com Further information on the product and copies of this technical file are avail- able from this address if required. 1.2 Completeness This technical file is incomplete without the following document: –...

  • Page 7: Safekeeping

    1.4 Safekeeping Keep this technical file and all supporting documents ready at hand and ac- cessible for future use at all times. 1.5 Notation conventions This section contains an overview of the symbols and textual emphasis used. 1.5.1 Hazard communication system Warnings in this technical file are displayed as follows.

  • Page 8: Information System

    1.5.1.3 Signal words Depending on the product, the following signal words are used: Signal word Meaning DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 9: Typographic Conventions

    Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action Requirements (optional). 1. Step 1. Result of step (optional). 2. Step 2. Result of step (optional). Result of action (optional). 1.5.4 Typographic conventions Typographic convention Purpose Example UPPERCASE...

  • Page 10: Safety

    2 Safety This technical document contains detailed descriptions on the safe and proper installation, connection, commissioning and monitoring of the prod- uct. – Read this technical document through carefully to familiarize yourself with the product. – This technical document is a part of the product. –...

  • Page 11: Fundamental Safety Instructions

    If used as intended, in compliance with the requirements and conditions specified in this technical document and observing the warning notices in this technical document and attached to the product, the product does not pose a risk of injury or damage to property or the environment. This applies throughout the service life of the product, from delivery, installation and op- eration to removal and disposal.
  • Page 12 Work area Untidy and poorly lit work areas can lead to accidents. – Keep the work area clean and tidy. – Make sure that the work area is well lit. – Observe the applicable laws for accident prevention in the relevant coun- try.

  • Page 13: Personnel Qualification

    Working during operation You must only operate the product when it is in a sound operational condi- tion. Otherwise it poses a danger to life and limb. – Regularly check the operational reliability of safety equipment. – Perform the inspection tasks described in this technical document regu- larly.

  • Page 14: Personal Protective Equipment

    2.5 Personal protective equipment Personal protective equipment must be worn during work to minimize risks to health. – Always wear the personal protective equipment required for the job at hand. – Never wear damaged personal protective equipment. – Observe information about personal protective equipment provided in the work area.

  • Page 15: Product Description

    3 Product description This chapter contains an overview of the design and function of the product. The dehydrating breather is mounted using a flange as standard on the pipe for venting and dehydrating the oil conservator. 3.1 Scope of delivery The following items are included in the scope of delivery: –...

  • Page 16: Design/Versions

    3.2 Design/versions Figure 1: Design 1 Version S 2 Version M 3 Universal flange Version Equipment SL 120V, SL 230V Without Modbus, without filter heater SH 120V, SH 230V With Modbus, with filter heater ML 120V, ML 230V Without Modbus, without filter heater MH 120V, MH 230V With Modbus, with filter heater *) For details, see chapter "Technical data"...

  • Page 17: Function Description

    3.3 Function description The dehydrating breather is used in oil-insulated transformers, reactors or tap changers for dehydrating the air sucked into oil conservators. Figure 2: Overview 1 Upper air spout 2 Lock nut 3 Universal flange 4 Nut 5 Temperature and humidity sensor 6 Grounding screw 7 Sensor cable 8 Terminal box (RAL 7035 light gray)

  • Page 18: Terminal Box

    3.4 Terminal box Figure 3: Terminal box 1 LEDs for status display 2 RTC buffer battery (type CR2032) 3 USB service interface (B socket) 4 Test button 5 Modbus settings (optional) 6 Fuse 7 Supply voltage 8 Cable gland 100...127 V DC/AC 50/60 Hz 1/2″...

  • Page 19: Controller For Silica Gel Heating

    9 Signaling relay 10 Analog output 1 (temperature), 4… 20 mA Analog output 2 (humidity), 4… 20 mA 11 RS485 interface (optional) 3.5 Controller for silica gel heating The dehydrating breather is delivered with a status-led controller. Refer to the chapter "Application table" for the recommended application ar- eas for the different versions of the dehydrating breather.

  • Page 20: Self-Monitoring Function

    An explanation of the various device status messages is given in the chapter "Status messages". 3.7 Self-monitoring function The dehydrating breather has a self-monitoring function. If an error occurs in the device, this is indicated by the different lighting patterns of the LEDs on the front of the terminal box, and also output via the signaling relay.

  • Page 21: Filter Heater (Optional)

    3.9 Filter heater (optional) To ensure device functionality in low temperature environments, the stain- less-steel filter is heated with the filter heater. Use of the filter heater is in- tended for applications in cold regions (ambient temperature is continuously below 0 °C for more than 20 days). 3.10 Test button The test button can be used to force a device test to be performed (see the chapter "Test button").

  • Page 22: Safety Markings And Nameplate

    3.11 Safety markings and nameplate Figure 5: Safety markings 22  Product description 10944490/00 EN...
  • Page 23 Risk of burns! See the chapter "Operation" Warning symbol on the nameplate: Danger! Observe notices in the operating instructions re- garding supply voltage; see nameplate in the chapter "Com- missioning" Sticker on the dust protection tube: Remove the protective cap! See the chapter "Removing the red protective cap"...

  • Page 24: Packaging, Transport And Storage

    4 Packaging, transport and storage 4.1 Purpose The packaging is designed to protect the packaged product during transport, loading, unloading and during periods of storage in such a way that no detri- mental changes occur. The packaging must protect the goods against per- mitted transport stresses such as vibration, knocks and moisture (rain, snow, condensation).

  • Page 25: Markings

    4.3 Markings The packaging bears a signature with instructions for safe transport and cor- rect storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Fragile Attach lifting Center of mass moisture gear here Table 4: Shipping pictograms...
  • Page 26 Visible damage If external transport damage is found upon receipt of the shipment, proceed as follows: – Immediately record the transport damage found in the shipping docu- ments and have this countersigned by the carrier. – In the event of severe damage, total loss or high damage costs, immedi- ately notify the sales department at Maschinenfabrik Reinhausen GmbH and the relevant insurance company.

  • Page 27: Storage Of Shipments

    4.5 Storage of shipments When selecting and setting up the storage location, ensure the following: – Store the product and accessories in the original packaging until installa- tion. – Protect stored goods against moisture (rain, flooding, water from melting snow and ice), dirt, pests such as rats, mice, termites etc. and against unauthorized access.

  • Page 28: Unpacking

    4.7 Unpacking To remove the dehydrating breather from the packaging, proceed as follows: 1. Remove the device from the packaging as shown in the image. 2. Place on an open, flat surface so that the glass cylinder of the desiccant container is exposed.
  • Page 29 NOTICE Damage to the dehydrating breather The device can become damaged or fall if it is set down vertically on the air exhaust. Do not support or set the device down on the air exhaust. Always set the device down horizontally. Hold the device firmly and secure it against turning.

  • Page 30: Mounting

    5 Mounting This chapter describes how to correctly mount the device. CAUTION Risk of injury! Risk of injury due to shattered glass cylinder of the desiccant container as the result of mechanical tension or jolts! Wear safety gloves during assembly in addition to the protective equip- ment that must always be worn.
  • Page 31 – Ensure that the pipes are not horizontal. – Prevent the pipe from dipping between the dehydrating breather and the expansion tank. – Prevent any sources of interference in the pipe between the dehydrating breather and the expansion tank (conventional dehydrating breather, non- return valves, etc.).
  • Page 32 Figure 10: Parallel installation – Do not install the dehydrating breather close to a sprinkler system that sprays upwards from below. – Only place spray water nozzles to the side and above the condensate out- let. – Do not clean the dehydrating breather with spray water from below. 32  Mounting 10944490/00 EN...

  • Page 33: Checking The Connecting Flange On The Transformer

    Figure 11: Sprinkler system and spray water 5.2 Checking the connecting flange on the transformer 1. Check the counterflange. It must be flush and even. Permitted evenness deviation ≤ 0.2 mm. 2. Check the sealing surface of the counterflange. It must be clean and un- damaged, without any surface damage radiating out from the center.

  • Page 34: Preparing The Device

    3. Use the gasket provided and only install it in a dry state. Do not oil or grease this gasket beforehand. Figure 12: Counterflange 5.3 Preparing the device NOTICE Damage to the dehydrating breather! Impairment of seal-tightness on the dehydrating breather due to loosening of the nut on the upper air intake spout! Ensure that the upper screw connection is not loosened from the dehy- drating breather.
  • Page 35 Figure 13: Nut on the upper air spout To prepare the dehydrating breather for mounting, proceed as follows: 1. Remove the red protective cap from the upper air intake spout. 2. Check that there is a gasket in the air intake spout. Figure 14: Protective cap and gasket 3.
  • Page 36 NOTICE Danger of damage to property If a flange is used that is unsuitable for the weight of the device, the flange may fail. Figure 15: Inserting the flange 4. Screw the flange onto the dehydrating breather by hand (approx. 1 Nm). Figure 16: Screwing on the flange 36  Mounting 10944490/00 EN...

  • Page 37: Mounting The Device On The Counterflange

    5. For lifting the device, replace the grounding screw with a lifting eye bolt. Figure 17: Inserting the lifting eye bolt 5.4 Mounting the device on the counterflange WARNING Danger of death and damage to property! Danger of death and damage to property due to falling load! Do not walk under the suspended load.

  • Page 38: Attaching The Lifting Gear

    5.4.1 Attaching the lifting gear NOTICE Damage to the dehydrating breather The device can become damaged or fall if it is set down vertically on the air exhaust. Do not support or set the device down on the air exhaust. 1.
  • Page 39 2. Attach the lifting gear to the lifting eye bolt. Figure 19: Lifting gear 10944490/00 EN Mounting  39...

  • Page 40: Inserting The Flange Gasket

    5.4.2 Inserting the flange gasket 1. Insert the flange gasket. Figure 20: Flange gasket 40  Mounting 10944490/00 EN...

  • Page 41: Screwing On The Flanges

    5.4.3 Screwing on the flanges DIN flange 1. Screw the dehydrating breather to the transformer counter-flange using the flange (mounting materials contained in the scope of delivery). Figure 21: Screw connection 2. Tighten each screw in turn with approximately 24 Nm. 3. Tighten each screw in turn with approximately 48 Nm. 4.
  • Page 42 6. Tighten each screw again with approximately 80 Nm. Figure 22: DIN flange screws 42  Mounting 10944490/00 EN...
  • Page 43 4-hole circular flange 1. Screw the dehydrating breather to the transformer counter-flange using the flange (mounting materials not included in the scope of delivery). Figure 23: 4-hole circular flange screws 2. Tighten the screws crosswise with approx. 30% of the torque. 3.

  • Page 44: Aligning The Device

    5.4.4 Aligning the device Aligning the device: 1. Align the device as desired using the double screw connection after mounting. Figure 24: Alignment of dehydrating breather 5.4.5 Tightening the double screw connection Tightening the double screw connection: 1. Hold the nut on the upper air spout and tighten the locknut on the flange with 250 Nm.
  • Page 45 4. Tighten the upper nut again with 250 Nm. Figure 25: Double screw connection 10944490/00 EN Mounting  45...

  • Page 46: Removing The Lifting Gear Again

    5.4.6 Removing the lifting gear again 1. Remove the lifting gear again carefully and replace the lifting eye bolt with the grounding screw including washer. Figure 26: Grounding screw 5.5 Removing the red protective cap NOTICE Dehydrating breather malfunction! The red protective cap blocks air exchange during operation of the dehydrat- ing breather! Make sure that the red protective cap is removed from the dust protection tube before commissioning.
  • Page 47 1. Remove the red protective cap from the dust protection tube on the bot- tom of the device. Figure 28: Red protective cap 10944490/00 EN Mounting  47...

  • Page 48: Electrical Connection

    6 Electrical connection This chapter describes the correct electrical connection of the device. Ob- serve the following hazard notices prior to opening the device: DANGER Electric shock! Risk of fatal injury due to electrical voltage. Always observe the following safety regulations when working in or on electrical equipment.

  • Page 49: Wiring Requirement Of Installation Site

    6.1.1 Wiring requirement of installation site Note the following when selecting the installation site: – The system's overvoltage protection must be effective. – The system's ground connection must comply with all technical regula- tions. – Separate system parts must be joined by a potential equalization. 6.1.2 Wiring requirement of operating site Note the following when wiring the operating site: –...

  • Page 50: Cable Recommendation

    Miniature circuit breaker You must fuse the power supply circuit with a miniature circuit breaker. The miniature circuit breaker must have the following properties: – Rated current: 16 A or 20 A – Triggering characteristic: C, K, Z Conductor cross-section For the power supply circuit, use a conductor cross-section suitable for the miniature circuit breaker that you have selected, but at least 1.5 mm (AWG 15).

  • Page 51: Routing And Preparing The Cable

    Cable Terminal Cable type Cross-section Protective conductor Unshielded >= cross-section of (PE) connection the voltage supply terminal 2 (L+) and terminal 3 (N-) Voltage supply 2 (L/+), 3 (N/-) Unshielded 1.5…4 mm² / AWG 11…15 Regeneration signaling 4, 5, 6, 7, 8, 9 Unshielded 1.5…4 mm²...
  • Page 52 To prepare the cable correctly, proceed as follows: 1. Open the terminal box of the dehydrating breather. To do so, unscrew the 4 captive screws on the housing cover. The cover is held on the left-hand side by spring hinges and can be swung open to the left. The terminal box cover is grounded with a grounding cable.
  • Page 53 3. Remove the cable jacket from the relay and analog output cables and strip 7 mm (1/4″) of insulation from the wires 4. Unscrew the leftmost of the three cable glands. Figure 31: Unscrewing the cable gland 10944490/00 EN Electrical connection  53...
  • Page 54 5. Insert a sufficient length of cable through the cable gland and rubber gas- ket and tighten the cable gland so that moisture from outside cannot pen- etrate the terminal box. Figure 32: Closing the cable gland NOTICE Malfunction Tightening the cable glands too tightly may result in line breaks and short cir- cuits.

  • Page 55: Connecting The Supply Voltage

    6.5 Connecting the supply voltage In order to connect the cable for the supply voltage, proceed as follows: 1. Insert the wire for the protective conductor into terminal 1 (PE) and tighten the screw terminal. 2. Insert the wire for the phase/plus into terminal 2 (L+) and tighten the screw terminal.
  • Page 56 The cable of the PE connection must be suitable for the cross-section of the power supply terminals 2 (L+) and 3 (N-). An installation specialist must check the connection for conductivity with a meter. 2-conductor technology If only power supply terminals 2 (L+) and 3 (N-) are to be connected, use a toothed washer between the housing and the lower O-ring.

  • Page 57: Connecting The Regeneration Signaling Relay

    6.6 Connecting the regeneration signaling relay WARNING Electric shock! The regeneration and device error signaling contacts may both be operated either with safety extra-low voltage (SELV) or with low voltage. For electrical safety reasons, mixed operation with both SELV and low voltage is not permitted. In order to connect the cable for transmitting the regeneration signal (change-over contact), proceed as follows: 1.

  • Page 58: Connecting The Device Error Signaling Relay

    6.7 Connecting the device error signaling relay WARNING Electric shock! The regeneration and device error signaling contacts may both be operated either with safety extra-low voltage (SELV) or with low voltage. For electrical safety reasons, mixed operation with both SELV and low voltage is not permitted. In order to connect the cable for transmitting the device error signal (NC con- tact, failsafe), proceed as follows: 1.
  • Page 59 The analog outputs are active outputs. Observe the load resis- tance of 0...600 Ω. To connect the cable for transmitting analog signal 1 for the temperature, proceed as follows: 1. Insert the wires into terminals 10(CL+) and 11(CL-). 2. Twist the shielding (if present) and insert it into terminal 12. 3.

  • Page 60: Connecting The Rs485 Interface And Configuring Modbus

    6.9 Connecting the RS485 interface and configuring Modbus The dehydrating breather can be connected to a SCADA system via the RS485 interface. This is designed as a 4-conductor system (full duplex), but can also be integrated into a 2-conductor system (half duplex). RS485 interface assignment for Modbus RTU PINs 4-conductor system...

  • Page 61: 4-Conductor Full Duplex

    6.9.1 4-conductor full duplex Figure 38: 4-conductor system To connect the cables for integration into a 4-conductor system, proceed as follows: 1. Insert the wire for Rx+ into screw terminal "1 Rx+" and tighten. 2. Insert the wire for Rx- into screw terminal "1 Rx-" and tighten. 3.

  • Page 62: 2-Conductor Half Duplex

    6. Twist the shielding, insert it into the "Shield" terminal and tighten. Figure 39: Connecting the full-duplex cable 6.9.2 2-conductor half duplex Figure 40: 2-conductor system 62  Electrical connection 10944490/00 EN...

  • Page 63: Notes On Connecting To The Mr Sensor Bus

    6.9.3 Notes on connecting to the MR sensor bus The optionally available MR sensor bus function lets you connect digital and analog sensors to the device over Modbus RTU. The MR sensor bus supports the connection of up to 31 sensors (Modbus server). The ISM® device oper- ates as a Modbus client.
  • Page 64 MR sensor bus. – The MR sensor bus uses Modbus in a 2-wire configuration (2W). The 4- wire configuration (4W) is not supported. – You must connect the sensors via a shielded line with 3 conductors (D0, D1, Common).
  • Page 65 D0 (A+) D0 (A+) D1 (B-) D1 (B-) Sensor 1 Com. (C) D0 (A+) D1 (B-) Sensor x Com. (C) D0 (A+) 120 Ω D1 (B-) Figure 42: Connection example MR sensor bus to CPU I/II-COM2 with optional transfer module 10944490/00 EN Electrical connection  65...
  • Page 66 D0 (A+) D0 (A+) Com. (C) Com. (C) Sensor 1 Com. (C) D0 (A+) D1 (B-) Sensor x Com. (C) D0 (A+) 120 Ω D1 (B-) Figure 43: Connection example MR sensor bus to CPU-X4 with optional transfer module 66  Electrical connection 10944490/00 EN...

  • Page 67: Ecotrac® Smart Breather

    6.9.4 ECOTRAC® SMART BREATHER If you would like to use an ECOTRAC® SMART BREATHER sensor, you must connect the sensor to the RS485 plug terminals on the sensor bus. CPU-COM2 Com. (C) D0 (A+) D1 (B-) ECOTRAC® SMART BREATHER D+ | Rx+ D- | Rx- Shield Comm...
  • Page 68 Figure 45: Modbus configuration 1 Terminating resistor: in half duplex 2 Operating mode: HALF = half du- mode: 1 = ON, 2 = OFF; in full duplex plex, FULL = full duplex mode: 1 = ON, 2 = ON 3 Modbus address 68  Electrical connection 10944490/00 EN...

  • Page 69: Modbus Settings

    6.9.5 Modbus settings Figure 46: RS485 settings Half-duplex or full-duplex operation To set the dehydrating breather for half-duplex operation, proceed as follows: Set the "Duplex mode" switch to the "HALF" position. To set the dehydrating breather for full-duplex operation, proceed as follows: Set the "Duplex mode"...

  • Page 70: Closing The Terminal Box

    Changing the Modbus address of the device The Modbus address of the device is set to 3 (ADR switch position 3) as stan- dard. In this setting, the transmission speed is 19,200 baud and the parity is "EVEN". The Modbus address of the device can be changed via the "ADR" switch (see the chapter "RS485 communication settings").
  • Page 71 2. Ensure that the grounding cable to the housing cover is not damaged when closing the terminal box. Figure 48: Visual inspection 10944490/00 EN Electrical connection  71...

  • Page 72: Additional Device Grounding

    3. Set the cover of the terminal box properly on the bottom of the housing. If necessary, grease the four housing screws (e.g. with Autol TOP 2000) and then tighten them. Figure 49: Closing the terminal box cover If necessary, also grease the four socket screws on the sensor unit (e.g.

  • Page 73: Dielectric Test

    Figure 50: Additional grounding point 6.12 Dielectric test NOTICE Damage to the device! Incorrect test voltage can cause damage to the device. Carry out dielectric testing with a maximum of 500 V DC. Prepare the test device. De-energize the dehydrating breather. 10944490/00 EN Electrical connection  73...

  • Page 74: Ground Test

    1. Conduct a test between the protective conductor (PE) at terminal 1 and neutral conductor (N-) at terminal 3. 2. Conduct a test between the protective conductor (PE) at terminal 1 and phase (L+) at terminal 2. Figure 51: Dielectric test If the device is not operated in the European Community, the national regulations for conducting the dielectric test in the re- spective country of use must be observed.
  • Page 75 To carry out the ground test, proceed as follows: 1. Feed the test current in at the fixing screw of the grounding cable using a constant current source and measure the voltage between the measure- ment point and the protective conductor connection at terminal 1. The measured voltage must remain less than 10 V for a period of 1 minute.

  • Page 76: Commissioning

    7 Commissioning NOTICE Damage to the device! Damage to the electronics of the dehydrating breather due to incorrect sup- ply voltage! Make sure that the correct supply voltage in accordance with the name- plate is present on the energized miniature circuit breaker. Switch on the supply voltage using an external isolating device.

  • Page 77: Device Self Test During Commissioning

    7.1 Device self test during commissioning The dehydrating breather LED signaling during commissioning is explained in the following. Observe the following legend for the respective LED state. Figure 54: LED legend 1 LED lights up 2 LED flashing 3 LED off The device performs a device self-test independently after the supply voltage is applied.

  • Page 78: Adjusting Modbus Settings

    After concluding the self-test, the green power LED remains constantly lit. If an error was detected, this is displayed via the LEDs (see the chapter "Error messages and troubleshooting"). Figure 56: Error-free operation An extended test triggered by the user can be started using the test button (see the chapter "Test button").

  • Page 79: Operation

    8 Operation During error-free operation, the green power LED is constantly lit and the red error LED is off. Figure 57: Error-free operation If the LED and/or LED issues a lit and flashing signal and the device malfunction LED is off, observe the information in the chapter "Status messages".
  • Page 80 CAUTION Slipping hazard! Danger to health! In case of temperatures at or below freezing, any escaping condensation can lead to icy ground beneath the device. In this case, do not step under the device. NOTICE Malfunction due to contaminated silica gel Prevent the silica gel becoming contaminated due to direct contact with the insulating fluid.
  • Page 81 If the fuse fails, it can be easily replaced (see the chapter "Fuse"). If this continues to happen, please contact the MR Reinhausen customer portal: https://portal.reinhausen.com 10944490/00 EN Operation  81...

  • Page 82: Error Messages And Troubleshooting

    9 Error messages and troubleshooting Before opening the terminal box or when checking the cables and sensors, always observe the following safety information: WARNING Electric shock Risk of fatal injury due to electrical voltage. De-energize the device and system peripherals and take measures to en- sure that they cannot be switched back on.
  • Page 83 The LED signaling will then be re- set, and the signaling relay for device malfunctions (failsafe) will pick up again after all errors have been acknowledged. If an error occurs that you cannot remedy yourself, please contact the MR Reinhausen customer portal: https://portal.reinhausen.com...

  • Page 84: Error Messages

    9.1 Error messages The individual errors and possible corrective actions are listed in the following table. If a suitable corrective action cannot be found in this table, please con- tact the MR Reinhausen customer portal: https://portal.reinhausen.com Error Measure green yel-...
  • Page 85 = LED OFF = LED ON = LED FLASHING Figure 60: Tests 1 Filter-heater supply cable 2 Test button 3 Silica-gel heating supply cable 4 Sensor cable socket 5 Sensor cable gland 6 Sensor cable 10944490/00 EN Error messages and troubleshooting  85...

  • Page 86: Status Messages

    = LED OFF = LED ON = LED FLASHING 9.3 Fuse If the fuse fails again, please contact the MR Reinhausen cus- tomer portal: https://portal.reinhausen.com A fine-wire fuse is installed on the circuit board in the terminal box to protect the control electronics.
  • Page 87 To replace the fuse, proceed as follows: 1. De-energize the dehydrating breather. 2. Open the terminal box of the dehydrating breather. To do so, unscrew the 4 captive screws on the housing cover. Open the cover of the terminal box. Figure 61: Removing the fine-wire fuse 3.
  • Page 88 7. Refit the safety cover. Figure 62: Inserting the fine-wire fuse 8. Close the terminal box again. 88  Error messages and troubleshooting 10944490/00 EN...

  • Page 89: Replacing The Battery (Cr2032)

    9.4 Replacing the battery (CR2032) If the following LED signaling arises, the CR2032 battery in the device needs to be replaced. Figure 63: Battery exhausted To replace the CR2032 battery in the device, proceed as follows: New battery is available. The device and system peripherals have been de-energized and measures have been taken to ensure that they cannot be switched back on.

  • Page 90: Contaminated Silica Gel

    In the event of the device flooding, please contact the MR Reinhausen cus- tomer portal: https://portal.reinhausen.com...

  • Page 91: Maintenance, Inspection And Care

    10 Maintenance, inspection and care CAUTION Risk of burns! Danger of bodily injuries due to heat! During regeneration (yellow LED lights up continuously), do not touch the glass cylinder of the desiccant container. 10.1 Maintenance The dehydrating breather does not require maintenance. 10.2 Inspection Depending on the conditions of use of the device and the national specifica- tions in the respective country of use, the transformer manufacturers can...
  • Page 92 Carry out the following inspections within the specified intervals: Interval Measure Detail During each transformer in- Visual inspection Check the external condi- spection tion of the device for con- tamination, damage and corrosion. During each transformer in- Dust protection tube check Carefully clear contamina- spection tion from the dust protec-...

  • Page 93: Test Button

    (see the next chapter). Table 8: Inspection plan In the event of questions or discrepancies, please contact the MR Reinhausen customer portal: https://portal.reinhausen.com 10.3 Test button If there was an error on the dehydrating breather, this must be acknowledged prior to conducting a function test.

  • Page 94: Quick Test

    It is also not possible to conduct a function test if the device is heat-drying (yellow LED is lit). If the test button is actuated in this case, all LEDs will flash simultaneously 10 times. The test button can be used to force a function test to be performed. Quick test If the test button is held down briefly (≤...
  • Page 95 10.3.1 Quick test Humidity level Measure gree yel- ≤10% R.H. Humidity OK. ≤10% R.H. Humidity OK. Regeneration imminent. ≤10% R.H. Humidity OK. Regeneration performed within the last 7 days. >10% and Humidity OK. <20% R.H. >10% and Humidity OK. <20% R.H. Regeneration imminent. >10% and Humidity OK. <20% R.H.
  • Page 96 Humidity level Measure gree yel- >20% R.H. Humidity increased, even though regenera- tion has been performed within the last 7 days. The device may be inadequately dimen- sioned or the silica gel may be contami- nated. Check the installation situation. Are all transition points of the piping still sealed tightly? >40% R.H.
  • Page 97 Starting a quick test in normal operation Device is not in the regeneration process (the silica gel is not being heat- dried; the yellow LED is off). 1. Briefly press the test button (hold down for ≤ 3 seconds). The start of the quick test is signaled by an LED sequence (see the fol- lowing figure).
  • Page 98 10.3.2 Long test NOTICE Incorrect messaging! When performing the long test, the failsafe relay will be activated for test purposes. Inform the control room that the failsafe relay will be activated. Figure 67: LED signaling during the long test 98  Maintenance, inspection and care 10944490/00 EN...
  • Page 99 Starting a long test in normal operation Device is not in the regeneration process (the silica gel is not being heat- dried; the yellow LED is off). 1. Press the test button for a longer period and then release (hold down for > 3 seconds).

  • Page 100: Care

    6. In the control room, check whether the device error signaling relay is deen- ergized and then energized again. Once the long test has been completed, the power LED is permanently lit in error-free operation. If the LEDs signal again or if an error is signaled over the device error signal- ing relay, observe the chapter Error messages and troubleshooting.
  • Page 101 Figure 69: Spray water Only use a damp cloth and mild cleaning agent to clean the device when needed. 10944490/00 EN Maintenance, inspection and care  101...

  • Page 102: Disposal

    11 Disposal Observe the national disposal regulations in the country of use. 11.1 SVHC information in accordance with the REACH regulation This product complies with the provisions of European Regulation 1907/2006/EC dated December 18, 2006 on the Registration, Evaluation, Au- thorization and Restriction of Chemicals (REACH). The following components of the product contain >...

  • Page 103: Technical Data

    12 Technical data 12.1 Technical data The technical data applies to the standard design and may vary depending on the design delivered. Subject to change without prior notice. Operating conditions Location of use Indoors and outdoors Pollution degree (terminal box) Relative humidity (operation and Inside the terminal box: 5…95% (non-condens- storage)
  • Page 104 Design types Materials All external parts are resistant to weathering and UV radiation Color Flange and metal parts: anodized (aluminum) Terminal box: Powder-coated (C4H in accordance with DIN EN ISO 12944-9) RAL 7035 (light gray) Weight (without flange) Version S: approx. 8.6 kg (19.0 lbs) Version M: approx. 12.6 kg (27.8 lbs) Dimensions See "Drawings"...
  • Page 105 Power supply External fuse protection Miniature circuit breaker characteristic C, K, Z with nominal current of 16 A or 20 A Rated insulation voltage 500 V DC (in accordance with IEC 61010-1) L against protective conductor N against protective conductor RTC buffer battery CR2032 (recommendation CR2032 from Renata or CR2032W from Murata Electronics) Terminal box Pressure equalization element...
  • Page 106 Signaling contacts Contact material Gold-plated contacts for applications with low switching currents Minimum load: ≥1 mV/1 mA Dielectric strength Between circuits and ground: ≥ 2 kV, 50 Hz, dura- tion 1 minute; Between contacts in the open position: ≥ 1 kV, 50 Hz, duration 1 minute; Impulse voltage withstand strength between contacts: ≥ 3 kV, 1.2/50 μs Reliable switching capacity 240 V AC, 8 A (IEC 61810, 100,000 switching cy-...
  • Page 107 Options Filter heater SH and MH versions: With heated stain- less-steel filter; recommended for cold re- gions with an ambient temperature that is continuously below 0 °C for more than 20 days in order to guarantee proper func- tion. Switching point < 5 °C (switch on) RS485 interface For connection to a SCADA system Standards and directives...

  • Page 108: Application Table

    Power transformer and reactor accessories IEC 60076-22-7 Accessories and fittings IEC 60076-22-7 Duration test at least 100 regenerations passed Chapter 6.6.5.2.3 IEC 60076-22-8 Power transformer and reactor fittings – Devices suitable for use in communication networks 12.2 Application table Application Device model Silica gel Tap changer Version S 1.1 kg (2.4 lbs)
  • Page 109 1) Heating current during the heating process (approx. 1–2 min. after heating activation). 2) Status-led controller: Self-learning system with status-dependent control of the heat-drying procedure through humidity monitoring and temperature- dependent determination of the most advantageous time to perform heat- drying. 10944490/00 EN Technical data  109...

  • Page 110: Drawings

    13 Drawings The product may have been altered since this document was published. 110  Drawings 10944490/00 EN...

  • Page 113: Appendix

    14 Appendix 14.1 Modbus RTU (optional) Status information Function code "02" to read the information Value Designation On/Off Error present On/Off Error SiO2 heating On/Off Internal data point On/Off Voltage supply error On/Off Sensor error On/Off Internal data point On/Off Internal data point On/Off Internal data point...

  • Page 114: Rs485 Communication Settings (Optional)

    Analog values (input register) Function code "04" to read the information MSW/LSW* Value Designation float32 Humidity sensor float32 Temperature sensor *) MSW = most significant word; LSW = least significant word Analog values (input register) Function code "04" to read the information Value Designation sint16 /...
  • Page 115 Factory settings ADR posi- Address Baud rate Parity Description tion 19,200 EVEN Delivery status Duplex mode: HALF BUS termination 120 ohms: OFF 10944490/00 EN Appendix  115...

  • Page 116: Glossary

    Glossary Ambient air temperature Operating temperature Permissible temperature of the air in Permissible temperature in the im- the surroundings of the equipment mediate surroundings of the device in operation on which the device is during operation taking ambient in- installed. fluences, for example due to the equipment and installation location, into consideration.
  • Page 118 Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg Germany +49 941 4090-0 info@reinhausen.com reinhausen.com Please note: The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. ® 10944490/00 EN - ECOTRAC SMART BREATHER Operating instructions - 04/24...

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