MVR-T257 https://deif-staging.jcdhotel.dk/products/mvr-t257/ Transformer Differential Protection en Thu, 18 Jun 2026 06:07:01 GMT Active 9f34be16-82c6-401b-9505-14340cdfc849 The MVR-T257 transformer protection device is an easy-to-use differential protection relay with high I/O capacity which can be extended with a voltage control feature.

]]> The MVR-T257 transformer protection device is an easy-to-use differential protection relay providing overcurrent protection for both low-voltage and high-voltage side of the transformer, earth fault protection, negative sequence overcurrent protection as well as two independent instances of restricted earth fault protection. The I/O capacity can be customized to the applications needs by 9 available extension slots. It can be equipped with a automatic voltage regulation for one or more transformers in parallel.

10x Current input (configurable 0.2…10A)
4x Voltage input (1.00…480.00V (RMS)
3x Digital input
5x Output relay (4NO, 1CO)
1x IRF output (1CO)
2x Remote com port (1 x RJ45 Ethernet and 1 x RS-485)
- IEC 61850 Ed1 & Ed2, Modbus TCP/RTU, IEC 60870-5-104/103/101, DNP 3.0, SPA protocols
- DT, IEC or ANSI time/overcurrent curves with settable release delays
- 9 extension slots for additional hardware options
- Event recorder (up to 15 000 events)
- Disturbance recorder (up to 100 disturbance records)
- 2nd and 5th harmonic blocking.
- Automatic verification for the connection group and nominal value settings.
- Overloading and through fault statistics for preventive maintenance.
- Measuring accuracy can be calibrated to Class 0.2

Available Extension Cards:

- 8x digital inputs (programmable threshold voltage)
- 5x output relays
- Arc-Flash Protection - 4x sensor channels, 2x HSO1, 1x BI *)
- 8x RTD input
- 2x RJ45 100Mb Ethernet & IRIG-B *)
- 2x ST 100Mb Ethernet & IRIG-B *)
- 4x mA outputs - 1 x mA input
- 2x LC 100MB Ethernet (HSR, PRP redundant protocols)
- 2x RJ45 100MB Ethernet (HSR, PRP redundant protocols) *)
- RS-232 - Serial Fiber

*) Land based applications only. Not marine approved

Marine approvals
- DNV/GL
- Lloyds Registeres LR
- Bureau Vertias BR
- ABS (USA)
- CCS (China)
- CNK (Japan)
- IEC (Israel)
- KR (Korea)
- UKCA (UK)
- RINA (Italy)

]]> Protection Functions:

  • (Sensitive) Earth fault protection stages INST, DT or IDMT (ANSI 50N/51N(S))
  • Breaker failure protection (ANSI 50BF)
  • Cable-end differential protection (ANSI 87)
  • Current transformer supervision (ANSI 60L)
  • Current unbalance/broken conductor protection stages INST, DT or IDMT (ANSI 46 /R/L)
  • Directional (sensitive) residual over-current protection stages DT or IDMT (ANSI 67N)
  • Directional three-phase over-current protection stages DT or IDMT (ANSI 67)
  • Frequency protection stages (ANSI 81O/U)
  • Fuse failure (ANSI 60)
  • Harmonic over-current protection/inrush blocking stages INST, DT or IDMT (ANSI 50H/51H/68)
  • Over-excitation protection (ANSI 24)
  • Overvoltage protection INST, DT or IDMT (ANSI 59)
  • Programmable stage (ANSI 99)
  • Rate of Change of Frequency ROCOF (ANSI 81R)
  • Residual voltage protection INST, DT or IDMT (ANSI 59N)
  • Restricted low-impedance earth fault protection (ANSI 87N)
  • Reverse-/under-/over-power protection INDT, DT or IDMT (ANSI 32)
  • Switch onto fault logic (SOTF)
  • Synchrocheck (ANSI 25)
  • Three-phase over-current protection INST, DT or IDMT (ANSI 50/51)
  • Transformer thermal overload protection (ANSI 49T)
  • Transformer, motor or generator differential protection, 2 winding (ANSI 87T/G/M)
  • Under-impedance protection (ANSI 21)
  • Under-voltage protection INST, DT or IDMT (ANSI 27)
  • Voltage memory
]]> Protection relay MVR2XX DEIF(LOM).pdf https://deif-cdn-umbraco.azureedge.net/media/u0lpzhuv/protection-relay-mvr2xx-deif-lom.pdf?rnd=134114657406800000&v=9 9eec97be-af95-42af-a697-654288812203 MVR-200 Mon, 29 Dec 2025 07:09:00 GMT 2025-12-29T07:09:00+00:00 2025-12-29T07:09:00+00:00 eng document A Archived Certificates Israel (IEC) LOM Certificate for MVR 257 Hebrew.pdf https://deif-cdn-umbraco.azureedge.net/media/d1xdrfgc/israel-iec-lom-certificate-for-mvr-257-hebrew.pdf?rnd=134114657135700000&v=9 9438ef06-9bc2-4a4e-8b3b-772183eda315 MVR-200 Mon, 29 Dec 2025 07:08:33 GMT 2025-12-29T07:08:33+00:00 2025-12-29T07:08:33+00:00 eng document A Archived Certificates DEIF_MVR200_protection_relay_-_approval_for_use_as_MV_protection_for_consumers.pdf https://deif-cdn-umbraco.azureedge.net/media/rwdo0oeo/deif_mvr200_protection_relay_-_approval_for_use_as_mv_protection_for_consumers.pdf?rnd=134114656897270000&v=9 38ed8695-f38e-46b3-ba65-9d5da314f1d4 MVR-200 Mon, 29 Dec 2025 07:08:09 GMT 2025-12-29T07:08:09+00:00 2025-12-29T07:08:09+00:00 eng document B Archived Certificates RINA ELE116125XP UK.pdf https://deif-cdn-umbraco.azureedge.net/media/5fci2edm/rina-ele116125xp-uk.pdf?rnd=134100406552970000&v=9 108e44e1-f46c-4a18-9ecc-d69a250f6531 MVR-200 Fri, 12 Dec 2025 19:17:35 GMT 2025-12-12T19:17:35+00:00 2025-12-12T19:17:35+00:00 eng document A Approvals/Certifications KRS_CPH06107-AC006_UK.PDF https://deif-cdn-umbraco.azureedge.net/media/lwngmwrx/krs_cph06107-ac006_uk.pdf?rnd=134100364450570000&v=9 5a669a45-8c37-4492-9c5e-79dd407a6c97 MVR-200 Fri, 12 Dec 2025 18:07:25 GMT 2025-12-12T18:07:25+00:00 2025-12-12T18:07:25+00:00 eng document B Approvals/Certifications LR LR25181594TA UK.pdf https://deif-cdn-umbraco.azureedge.net/media/pghbdfoc/lr-lr25181594ta-uk.pdf?rnd=134099421662000000&v=9 95018f61-52c2-4e3b-9dbe-2225f4f31469 MVR-200 Thu, 11 Dec 2025 15:56:06 GMT 2025-12-11T15:56:06+00:00 2025-12-11T15:56:06+00:00 eng document A Approvals/Certifications General safety note 4189341189 UK-FR.pdf https://deif-cdn-umbraco.azureedge.net/media/t3ofzpjw/general-safety-note-4189341189-uk-fr.pdf?rnd=134045044194400000&v=9 bd5c5d87-9036-4df9-881e-cc1bd5ed3b40 MDR-2 Thu, 09 Oct 2025 17:26:59 GMT 2025-10-09T17:26:59+00:00 2025-10-09T17:26:59+00:00 eng document C Other Technical Documentation DNV TAE00003NT UK.PDF https://deif-cdn-umbraco.azureedge.net/media/iezpedki/dnv-tae00003nt-uk.pdf?rnd=133842540545500000&v=9 0df23359-4648-4c10-a1c8-0be432f47f85 MVR-200 Mon, 17 Feb 2025 08:20:54 GMT 2025-02-17T08:20:54+00:00 2025-02-17T08:20:54+00:00 eng document B Approvals/Certifications CCS_GB23PTB00060_UK.pdf https://deif-cdn-umbraco.azureedge.net/media/ueqbwp1z/ccs_gb23ptb00060_uk.pdf?rnd=133840176646730000&v=9 3f1b20b9-a179-4061-a931-331ee0d49434 MVR-200 Fri, 14 Feb 2025 14:41:04 GMT 2025-02-14T14:41:04+00:00 2025-02-14T14:41:04+00:00 eng document A Approvals/Certifications MVR-25x 3D STEP-file.stp https://deif-cdn-umbraco.azureedge.net/media/uf3f20qr/mvr-25x-3d-step-file.stp?rnd=133825358937900000&v=9 6a5e7ab9-ee11-408a-a7e8-0ed8cc2429ed MVR-200 Tue, 28 Jan 2025 11:04:53 GMT 2025-01-28T11:04:53+00:00 2025-01-28T11:04:53+00:00 eng document A Drawings MVR-25x 3D PDF.pdf https://deif-cdn-umbraco.azureedge.net/media/wzcl2g3p/mvr-25x-3d-pdf.pdf?rnd=133825358187700000&v=9 1bbe45ae-5daf-486b-b992-98386de59e60 MVR-200 Tue, 28 Jan 2025 11:03:38 GMT 2025-01-28T11:03:38+00:00 2025-01-28T11:03:38+00:00 eng document A Drawings MVR-25x 2D PDF.pdf https://deif-cdn-umbraco.azureedge.net/media/t23adxgs/mvr-25x-2d-pdf.pdf?rnd=133825357139170000&v=9 dc013a87-1bd2-4c91-bf07-ec47d8bcd9f4 MVR-200 Tue, 28 Jan 2025 11:01:53 GMT 2025-01-28T11:01:53+00:00 2025-01-28T11:01:53+00:00 eng document A Drawings MVR-25x 2D CAD drawing.dwg https://deif-cdn-umbraco.azureedge.net/media/ixqbrgod/mvr-25x-2d-cad-drawing.dwg?rnd=133825356331970000&v=9 9918e15d-23c3-4541-b77b-5e5ba6f9cc76 MVR-200 Tue, 28 Jan 2025 11:00:33 GMT 2025-01-28T11:00:33+00:00 2025-01-28T11:00:33+00:00 eng document A Drawings MVR-21x 3D STEP-file.stp https://deif-cdn-umbraco.azureedge.net/media/5eabfx1y/mvr-21x-3d-step-file.stp?rnd=133825355270730000&v=9 df1201e1-9978-4bdb-ab64-e3cd0e3409f8 MVR-200 Tue, 28 Jan 2025 10:58:47 GMT 2025-01-28T10:58:47+00:00 2025-01-28T10:58:47+00:00 eng document A Drawings MVR-21x 3D PDF.pdf https://deif-cdn-umbraco.azureedge.net/media/ef1hdm4v/mvr-21x-3d-pdf.pdf?rnd=133825354406870000&v=9 b3717639-b2d5-4157-88f9-fda6b8fec4e3 MVR-200 Tue, 28 Jan 2025 10:57:20 GMT 2025-01-28T10:57:20+00:00 2025-01-28T10:57:20+00:00 eng document A Drawings MVR-21x 2D PDF.pdf https://deif-cdn-umbraco.azureedge.net/media/30nfcjff/mvr-21x-2d-pdf.pdf?rnd=133825353702070000&v=9 24519bf6-eba5-4481-9bc1-020f4e3020a8 MVR-200 Tue, 28 Jan 2025 10:56:10 GMT 2025-01-28T10:56:10+00:00 2025-01-28T10:56:10+00:00 eng document A Drawings MVR-21x 2D CAD drawing.dwg https://deif-cdn-umbraco.azureedge.net/media/05clhnzn/mvr-21x-2d-cad-drawing.dwg?rnd=133825352370770000&v=9 b7a3c5cf-7e2d-47fa-b217-a7b7f7f76c18 MVR-200 Tue, 28 Jan 2025 10:53:57 GMT 2025-01-28T10:53:57+00:00 2025-01-28T10:53:57+00:00 eng document A Drawings MVR-T215 Data sheet 4921240674 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/pb3howqm/mvr-t215-data-sheet-4921240674-uk.pdf?rnd=133824733233470000&v=9 5a777b60-dc0c-4078-ad56-4a8c7354450f MVR-200 Mon, 27 Jan 2025 17:42:03 GMT 2025-01-27T17:42:03+00:00 2025-01-27T17:42:03+00:00 eng document B Data Sheet MVR-T257 Data sheet 4921240677 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/mibhadcv/mvr-t257-data-sheet-4921240677-uk.pdf?rnd=133824730954670000&v=9 0c70037a-0155-4184-88ba-35621d3b305c MVR-200 Mon, 27 Jan 2025 17:38:15 GMT 2025-01-27T17:38:15+00:00 2025-01-27T17:38:15+00:00 eng document B Data Sheet MVR-T256 Data sheet 4921240676 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/zboba3mt/mvr-t256-data-sheet-4921240676-uk.pdf?rnd=133824730484570000&v=9 75105dd0-5293-4da4-9b73-7bfcc56d50e0 MVR-200 Mon, 27 Jan 2025 17:37:28 GMT 2025-01-27T17:37:28+00:00 2025-01-27T17:37:28+00:00 eng document B Data Sheet MVR-T216 Data sheet 4921240675 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/laephdxy/mvr-t216-data-sheet-4921240675-uk.pdf?rnd=133824729922130000&v=9 8ee30940-93f8-409d-9c26-1514e5544895 MVR-200 Mon, 27 Jan 2025 17:36:32 GMT 2025-01-27T17:36:32+00:00 2025-01-27T17:36:32+00:00 eng document B Data Sheet UKCA DoC 4910290616 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/kn0nl2wg/ukca-doc-4910290616-uk.pdf?rnd=133680419983870000&v=9 f2c5754b-38c6-4e97-813e-e762a3eb761a MVR-200 Tue, 13 Aug 2024 16:59:58 GMT 2024-08-13T16:59:58+00:00 2024-08-13T16:59:58+00:00 eng document A Approvals/Certifications CNK_TA20480M_UK.PDF https://deif-cdn-umbraco.azureedge.net/media/u0lem5qs/cnk_ta20480m_uk.pdf?rnd=133680416309300000&v=9 7e4696be-cc12-4ad5-8789-86cea3179a43 MVR-200 Tue, 13 Aug 2024 16:53:50 GMT 2024-08-13T16:53:50+00:00 2024-08-13T16:53:50+00:00 eng document A Approvals/Certifications CE DoC 4910290116 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/lgtfh5sa/ce-doc-4910290116-uk.pdf?rnd=133680415969100000&v=9 fe53a641-2740-4eda-9661-ba776772cb71 MVR-200 Tue, 13 Aug 2024 16:53:16 GMT 2024-08-13T16:53:16+00:00 2024-08-13T16:53:16+00:00 eng document C Approvals/Certifications BV_60188_A0_BV_UK.PDF https://deif-cdn-umbraco.azureedge.net/media/gymfgzwu/bv_60188_a0_bv_uk.pdf?rnd=133680415189900000&v=9 6653192e-1bd4-437c-9b35-cc9108bb0b4a MVR-200 Tue, 13 Aug 2024 16:51:58 GMT 2024-08-13T16:51:58+00:00 2024-08-13T16:51:58+00:00 eng document A Approvals/Certifications ABS_20-2011865-PDA_UK.PDF https://deif-cdn-umbraco.azureedge.net/media/4o0h4ckw/abs_20-2011865-pda_uk.pdf?rnd=133680414853230000&v=9 096fb5eb-3c56-40c3-bd53-47fc47fce02e MVR-200 Tue, 13 Aug 2024 16:51:25 GMT 2024-08-13T16:51:25+00:00 2024-08-13T16:51:25+00:00 eng document A Approvals/Certifications Option D Arc protection 4189341408 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/rf3dufme/option-d-arc-protection-4189341408-uk.pdf?rnd=133680408501400000&v=9 153a7a91-9484-43d6-b1ad-d65d6736dbc5 MVR-200 Tue, 13 Aug 2024 16:40:50 GMT 2024-08-13T16:40:50+00:00 2024-08-13T16:40:50+00:00 eng document A Description of Options MVR-200 series AutoCAD dimensions and faceplates.zip https://deif-cdn-umbraco.azureedge.net/media/qpzdwnwk/mvr-200-series-autocad-dimensions-and-faceplates.zip?rnd=133680403568830000&v=9 363bf39b-69ca-4622-8833-bf6160a0b73e MVR-200 Tue, 13 Aug 2024 16:32:36 GMT 2024-08-13T16:32:36+00:00 2024-08-13T16:32:36+00:00 eng document A Drawings DEIF MVR USW User manual 4189341238 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/0f1alifr/deif-mvr-usw-user-manual-4189341238-uk.pdf?rnd=133680402768500000&v=9 a00576c9-5ab1-43ee-b452-0de71437ddfd MVR-200 Tue, 13 Aug 2024 16:31:16 GMT 2024-08-13T16:31:16+00:00 2024-08-13T16:31:16+00:00 eng document C User's Manual MVR-200 Operators manual 4189341220 UK.pdf (1) https://deif-cdn-umbraco.azureedge.net/media/vg4pbyp4/mvr-200-operators-manual-4189341220-uk.pdf?rnd=133680402255600000&v=9 e1e0bdb1-00fe-4acc-8a53-b0257885405e MVR-200 Tue, 13 Aug 2024 16:30:25 GMT 2024-08-13T16:30:25+00:00 2024-08-13T16:30:25+00:00 eng document B Operator's Manual MVR-200 Installation instructions 4189341219 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/u1zntw00/mvr-200-installation-instructions-4189341219-uk.pdf?rnd=133680401924400000&v=9 dbc9f3be-805a-4239-bc51-69391f43ffef MVR-200 Tue, 13 Aug 2024 16:29:52 GMT 2024-08-13T16:29:52+00:00 2024-08-13T16:29:52+00:00 eng document E Installation Instructions MVR-200 Designers handbook 4189341221 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/kbwl5fse/mvr-200-designers-handbook-4189341221-uk.pdf?rnd=133680398081870000&v=9 96bf6c48-f344-4e11-b1aa-aac0f668e542 MVR-200 Tue, 13 Aug 2024 16:23:28 GMT 2024-08-13T16:23:28+00:00 2024-08-13T16:23:28+00:00 eng document E Designer's Handbook MVR 200 选型手册 4921240605 中文.pdf https://deif-cdn-umbraco.azureedge.net/media/ux3pncnk/mvr-200-选型手册-4921240605-中文.pdf?rnd=133680397051500000&v=9 89f6fabd-daaa-407a-806f-92d2bfbc8314 MVR-200 Tue, 13 Aug 2024 16:21:45 GMT 2024-08-13T16:21:45+00:00 2024-08-13T16:21:45+00:00 zho document K Data Sheet MVR-200 series Product sheet 4189341368 UK.pdf https://deif-cdn-umbraco.azureedge.net/media/4qqgjgga/mvr-200-series-product-sheet-4189341368-uk.pdf?rnd=133680395683000000&v=9 986420ec-46c0-4079-9eac-921e1ab43d02 MVR-200 Tue, 13 Aug 2024 16:19:28 GMT 2024-08-13T16:19:28+00:00 2024-08-13T16:19:28+00:00 eng document A Brochures/Handouts MVR USW - v1.5.3-1 https://deif-staging.jcdhotel.dk/software/mvr-usw/1-5-3-1/ 12771b44-dde8-4274-8817-fa7bd5d221cd 2025-02-06T00:00:00+00:00 software-version MVR USW 1.5.3-1 current New features
  • T-card to rear panel view. 
  • Firmware version to MVR USW top left corner. 
  • Allow copying of device data from infobox. 
  • Lots of missing mapping to 61850. 
  • C++ redistributable to installer. 
  • Support for export logic view to PDF. 
  • Alarm colour selector in 250 mimics.
  • Programmable stages mapping to IEC 61850.

Changes

  • Changed default IP address to front port. 
  • Mimic colours now follow the colour theme. 
  • Updated Chinese translations.
  • Event history: Adjusted the column order to timestamp first.
  • Re-ordered GSE nodes to match GSE Control nodes.

 Corrections

  • Fixed check for updates functionality. 
  • Fixed type of BCR.actVal to match 61850 edition 2. 
  • Fixed issue with incorrect decimal places in some parameters for older firmwares.  
  • Fixed some descriptions in 61850 CID. 
  • Fixed RTD card size in rear panel view. 
  • Fixed issue with some menus not being loaded.
  • Fixed SPA map saving. Does not overwrite existing file even when confirmed. 
  • Fixed communication map descriptions and added missing mappings.
]]> MVR FW 250 series - v2.5.7.1-245 https://deif-staging.jcdhotel.dk/software/mvr-fw-250-series/2-5-7-1-245/ f4509a83-671d-4279-97b5-022d5b53a948 2025-03-28T00:00:00+00:00 software-version MVR FW 250 series 2.5.7.1-245 current New features 
  • Hardware: Support for T option card (1 x mA output - 4 x mA input).
  • Function: DIF (Idx>) [87T] and GMAG: Individual setting groups (SGS2). 
  • Generator module: Nominal scaling manual mode. 
  • VRG1 (Vreg) [90]: Parallel Voltage Regulator.
  • GMAG: Excitation current to mA Out channel selection. 
  • HMI: Alarm view colour selector. 
  • HMI: Arabic language to start screen. 
  • HMI: Chinese font support for objects. 
  • Communication: Ethernet GOOSE storm protection parameter. 
  • Communication: Double Ethernet PRP ports parameter.
  • Communication: Support for PTP power profiles and VLAN-tagged frames. 
  • Communication: Scaled analogue inputs to IEC 104. 
  • Communication: CTS2 to IEC 61850 mapping. 
  • Communication: URX1 and URX2 [21X] conditions to IEC 61850. 
  • Communication: VHZ1 (2) conditions to IEC 61850. 
  • Communication: Capacitor Protection Module Conditions COL1/2 and CNU1 to legacy protocols. 
  • Communication: U3/U4 frequency to IEC 61850. 
  • Communication: Switch positions added to GOOSE.
  • Communication: GOOSE analogue values added to HMI and programmable stages.

Changes

  • Pole Slip [78]: Function improvements.
  • Synchro check [25]: Added LL/DL/LD/DD mode, ability to select line or bus as reference, additional signals. 
  • HMI: Default mimic updated to light theme. 
  • HMI: Several menu item and text adjustments, addition of function ANSI codes. 
  • Fault register: "Fault values register" and "Measurement value recorder" renamed to “Fault register”.

 

Corrections

  • Synchro check [25]: SYN2 and SYN3 force status. 
  • Current transformer supervision: Current transformer supervision functionality was not working if delay was not zero. 
  • Directional overcurrent (Idir>) [67]: Protection blocking set start to zero. 
  • Current unbalance (I2>) [46]: Adjustments to IDMT tripping time calculation. 
  • Voltage regulation (Vreg) [90]: Scaling curve positions were not working. 
  • Frequency measurement: Min/Max tracking frequency allowed limits were not working. 
  • Frequent start FSP (N>) [66]: Frequent start stage was not working correctly.
  • Logic: >= comparator was also activated on negative values. 
  • Objects: Default user level changed from operator to configurator. 
  • HMI: Push buttons were in undefined state after reboot if set to toggle mode. 
  • HMI: Reset to factory defaults will now reboot HMI and clear mimics and fault registers correctly. 
  • HMI: Custom event description display on event list. 
  • HMI: Vector and trip time characteristics.
  • HMI: Measurement bar scaling. 
  • Disturbance recorder: Recording failed when device name was more than 28 characters. 
  • Disturbance recorder: Issues saving digital outputs to "REC Digital channels" - selection. 
  • Underexcitation protection (X<) [40]: RX circle radius was renamed from diameter to radius to reflect intended functionality.
  • Frequency protection f>/< [81O/81U]: fmeas/fset value was always zero. 
  • Harmonics measurement: Harmonic measurement percentage values were "Infinite". 
  • NOC1 (I>) [50/51]: Fault register was not showing fault phases correctly. 
  • Communication/ IEC 61850: Energy measurement demand values not updating. 
  • Communication/ IEC 61850: UCP1 (IUC>) [46C]: UIC Testout event inconsistency. 
  • Communication/ IEC 61850: SOTF: SOF1GGIO1 condition check not updating.
]]>