CYG PRS-7395 User manual

PRS-7395
Merging and Control Unit
Instruction Manual
CYG SUNRI CO., LTD.

Preface
PRS-7395 i
Preface
User’s Guideline
This instruction manual contains full information of the equipment, including function descriptions,
logic diagrams, input signals, output signals, setting parameters and technical parameters. It also
lists the operations on safe handling, commissioning and maintaining of this equipment. The
instruction manual can be used as a technical reference during the whole product life cycle.
Documentation and manufactured equipments purchased from CYG SUNRI CO., LTD. are
dispatched separately due to the necessary manufacturing period. Therefore, they sometimes may
not reach the recipients at the same time. Therefore this manual is provided as a technical
reference to commission the equipment.
The installation and commissioning personnel should read all relevant chapters carefully and get a
thorough knowledge of the contents of this manual, before conducting any operation to the
equipment. In this way, the personnel can get the required knowledge in handling electronic
equipment.
This manual contains a security chapter which describes the safety precautions recommended
when using the equipment. Before installing and using the equipment, this chapter is recommended
to be thoroughly read and understood.
Personnel Security
The content in this chapter specifically describes to prevent and reduce the safety accidents in
electric power production and construction processures, to ensure the personal safety and health
of employees in production activities and to ensure the power grids stable operation and reliable
power supply.
Any kind of direcily touching with the metal parts of the electrical equipment should be avoided
when electrical equipment is on operation, because of the potential electric shock risk. Neglecting
warning notices should be prevent because the improperly operation may damage the device, even
cause personnel injury.
The good operating condition of the equipment depends on proper shipping and handling, proper
storage, installation, commissioning and maintenance. Therefore, only qualified personnel should
be allowed to operate the equipment. Intended personnel are individuals who:
Have a thorough knowledge of protection systems, protection equipment, protection functions
and the configured functional logic in the IEDs;
Have a basic knowledge in the installation, commissioning, and operation of the equipment;
Are familiar with the working field where it is being installed;
Are able to safely perform operations in accordance with accepted safety engineering steps;
Are authorized to energize and de-energize equipment, and to isolate, ground, and label it;

Preface
ii PRS-7395
Are trained in the maintanence and use of safety apparatus in accordance with safety
engineering regulations;
Have been trained in first aid if any emergency situations happen.
Warning Indications
The following indicators and standard definitions are used:
DANGER! means that death, severe personal injury and considerable equipment damage will
occur if safety precautions are disregarded.
WARNING! means that death, severe personal and considerable equipment damage could
occur if safety precautions are disregarded.
CAUTION! means that light personal injury or equipment damage may occur if safety
precautions are disregarded.
NOTICE! is particularly applies to damage to device and to resulting damage of the protected
equipment.
DANGER!
NEVER allow the current transformer (CT) secondary circuit connected to this
equipment to be opened while the primary system is live. Opening the CT circuit will
produce a dangerously high voltage.
WARNING!
ONLY qualified personnel should work on or in the vicinity of this device. This personnel
MUST be familiar with all safety regulations and service procedures described in this
manual. During operating of electrical device, certain part of the device is under high
voltage. Severe personal injury and significant device damage could result from
improper behavior.
WARNING!
Do NOT touch the exposed terminals of this device while the power supply is on. The
generated high voltage causes death, injury, and device damage.
WARNING!
Thirty seconds is NECESSARY for discharging the voltage. Hazardous voltage can be
present in the DC circuit just after switching off the DC power supply.

Preface
PRS-7395 iii
CAUTION!
Earthing
Securely earthed the earthing terminal of the device.
Operating environment
ONLY use the device within the range of ambient environment and in an environment
free of abnormal vibration.
Ratings
Check the input ratings BEFORE applying AC voltage/current and power supply to
the device.
Printed circuit board
Do NOT attach or remove printed circuit board if the device is powered on.
External circuit
Check the supply voltage used when connecting the device output contacts to
external circuits, in order to prevent overheating.
Connection cable
Carefully handle connection cables without applying excessive force.
NOTICE!
The firmware may be upgraded to add new features or enhance/modify existing features,
please MAKE SURE that the version of this manual is compatible with the product in
your hand.
Copyright © 2017 CYG SUNRI CO., LTD. All rights reserved.
This document contains confidential information of CYG SUNRI CO., LTD. Any improper use of the document or information contained
herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by organizations or persons is
prohibited. CYG SUNRI CO., LTD. reserve all rights to this document and to the information contained herein.
CYG SUNRI CO., LTD. has made every effort to ensure that this document is accurate. CYG SUNRI CO., LTD. disclaims liability for any
inaccuracies or omissions that may have occurred. If nevertheless any incorrect, misleading, or incomplete information are found,
comments and suggestions for correction or improvement are greatly appreciated. CYG SUNRI CO., LTD. reserves the rights to upgrade

Preface
iv PRS-7395
the products and to make improvements to the documents without notice.
The users are responsible for understanding the information and should not rely on this information as absolute. If the users do act upon
the suggestions contained in this document, the users should be responsible for themself and their actions.
CYG SUNRI CO., LTD.
Headquarters: No.13, Keji North 1st Road, North Area of Hi-tech
Industral Park, Nanshan District, Shenzhen, China
Tel: [phone]
Website: http://www.sznari.com
P/N: PRS-7395_X_Instruction Manual_EN_Overseas General_X
Version: 1.00
Documentation Outline
The manual provides a functional and technical description of this relay and a comprehensive set
of instructions for the relay’s use and application.
All contents provided by this manual are summarized as below:
1 Briefly Introduction
Briefly introduce the application scope, the selectable functions and product features about this
equipment.
2 Technical Specifications
Introduce the technical specifications about this relay, including electrical specifications,
mechanical specifications, ambient temperature and humidity range, communication interface
parameters, type tests, setting ranges and accuracy limits etc.
3 Operation Theory
Provide a comprehensive and detailed function description.
4 Supervision Functions
Introduce the automatic self-supervision function of this equipment.
5 Monitoring&Control
Introduce the measurement, controlling, signaling, recording and other functions of this device.
6 Hardware
Introduce the main module functions of this device and describe the definition of all terminals of
each module.
7 Communication Protocol
Introduce the communication interfaces and protocol that this relay contains. IEC60970-5-103 and
IEC61850 protocols are introduced in details.
8 Commissioning
Introduce how to commission this relay, check the calibration and test all the function of this relay.
9 Installation

Preface
PRS-7395 v
Recommend on unpacking, handling, inspection and storage of this relay. A guide to the mechanical
installation and electrical wiring of this relay is also provided, including earthing recommendations.
Some typical wiring connection is demonstrated in this manual manual as well.
10 Maintenance
A general maintenance steps for this device is outlined.
11 Decommissioning and Disposal
A general decommissioning and disposal steps for this relay is outlined.
12 Manual Version History
List the instruction manual versions and their corresponding modification history records.

Table of contents
PRS-7395 1
Table of contents
Preface....................................................................................................i
User’s Guideline .........................................................................................................i
Personnel Security .....................................................................................................i
Warning Indications ..................................................................................................ii
Documentation Outline ............................................................................................iv
Table of contents...................................................................................1
1 Introduction ........................................................................................7
1.1 Application Scope ...............................................................................................7
1.2 Product Function.................................................................................................7
1.3 Product Features .................................................................................................7
2 Technical Specifications....................................................................9
2.1 Electrical Specifications .....................................................................................9
2.1.1 Current Transformer Ratings................................................................................................9
2.1.2 Voltage Transformer Ratings................................................................................................9
2.1.3 Auxiliary Power Supply .........................................................................................................9
2.1.4 Binary Input...........................................................................................................................9
2.1.5 Binary Output......................................................................................................................10
2.2 Mechanical Specifications ................................................................................10
2.3 Ambient Temperature and Humidity Range ....................................................10
2.4 Communication Interfaces................................................................................11
2.4.1 Ethernet Port.......................................................................................................................11
2.4.2 Time Synchronization .........................................................................................................11
2.4.3 Ethernet Port for Debugging...............................................................................................11
2.5 Type Tests ..........................................................................................................11
2.5.1 Mechanical Tests ................................................................................................................11
2.5.2 Electrical Tests....................................................................................................................12
2.5.3 Electromagnetic Compatibility ............................................................................................12

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2 PRS-7395
2.5.4 Environmental Tests ...........................................................................................................14
2.6 Terminals............................................................................................................14
2.7 Measurement Range and Accuracy .................................................................14
3 Operation Theory .............................................................................15
3.1 Overview.............................................................................................................15
3.2 System Parameters ...........................................................................................15
3.2.1 Overview.............................................................................................................................15
3.2.2 Settings...............................................................................................................................15
3.3 Configuration Parameters.................................................................................15
3.3.1 Overview.............................................................................................................................15
3.3.2 Settings...............................................................................................................................16
3.4 AC Analog Input.................................................................................................16
3.5 DC Analog Input.................................................................................................17
3.6 Binary Input........................................................................................................17
3.7 Binary Output.....................................................................................................17
3.8 Trip Logic ...........................................................................................................17
3.8.1 Protection GOOSE Trip ......................................................................................................17
3.8.2 TJR Trip ..............................................................................................................................18
3.8.3 Remote trip .........................................................................................................................18
3.9 Close Logic ........................................................................................................18
3.9.1 Remote Close.....................................................................................................................18
3.9.2 Reclose...............................................................................................................................19
3.10 AR Block and lockout......................................................................................19
3.11 General Accident Signal..................................................................................20
3.12 Three-phase Imbalance Alarm........................................................................21
3.13 Test Inconsistency...........................................................................................21
3.14 Synchronization Function...............................................................................21
4 Supervision ......................................................................................23
4.1 Overview.............................................................................................................23
4.2 Operation Power Monitoring ............................................................................23

Table of contents
PRS-7395 3
4.3 Optocoupler Power Failure...............................................................................23
4.4 Control circuit failure alarm..............................................................................23
4.5 TJF ......................................................................................................................24
5 Monitoring&Control .........................................................................25
5.1 Overview.............................................................................................................25
5.2 BI Status .............................................................................................................25
5.3 GOOSE and SV Status ......................................................................................25
5.4 Optical Port Power ............................................................................................25
5.5 DC Measurement ...............................................................................................25
5.6 Event Recording ................................................................................................25
6 IED Hardware....................................................................................27
6.1 Overview.............................................................................................................27
6.2 Hardware Module...............................................................................................29
6.3 Power Supply Module .......................................................................................29
6.4 Main CPU Module ..............................................................................................30
6.5 Binary Input Module ..........................................................................................31
6.6 Binary Output.....................................................................................................33
6.7 Binary Input/Output Module .............................................................................34
6.8 BI/DC Input Module............................................................................................35
6.9 Transformer Module ..........................................................................................37
7 Communication Protocol.................................................................40
7.1 Overview.............................................................................................................40
7.2 Rear Communication Interface.........................................................................40
7.2.1 Ethernet Interface ...............................................................................................................40
7.3 Network Topoloty...............................................................................................40
7.3.1 PRP Topology .....................................................................................................................40
7.4 IEC61850 Protocol .............................................................................................41
7.4.1 Overview.............................................................................................................................41
7.4.2 Communication Profiles......................................................................................................41
7.4.3 Data set and control block..................................................................................................43

Table of contents
4 PRS-7395
7.4.4 Logic nodes and data modeling .........................................................................................45
8 Commissioning ................................................................................48
8.1 General ...............................................................................................................48
8.2 Safety Instructions ............................................................................................48
8.2.1 Safety Identification ............................................................................................................48
8.2.2 Safety Identification Examples ...........................................................................................48
8.3 Commission Tools.............................................................................................50
8.3.1 Instrumentation and Meters Notice: ...................................................................................50
8.3.2 Tools Requirement:.............................................................................................................50
8.4 Commission Preparation ..................................................................................50
8.4.1 Basic Knowledge ................................................................................................................50
8.4.2 Operation Preparation ........................................................................................................50
8.5 Product Checks .................................................................................................51
8.5.1 Document Check ................................................................................................................51
8.5.2 Appearance Inspection .......................................................................................................51
8.5.3 Insulation Check .................................................................................................................51
8.5.4 External Wiring Check ........................................................................................................52
8.5.5 Test Category......................................................................................................................52
8.6 With the Relay Energized..................................................................................53
8.6.1 Date and Time ....................................................................................................................53
8.6.2 Light Emitting Diodes (LEDs) .............................................................................................53
8.6.3 Test the AC Current Circuit .................................................................................................54
8.6.4 Test the AC Voltage Inputs .................................................................................................54
8.6.5 Test the Binary Inputs .........................................................................................................55
8.6.6 Test the Binary Onputs .......................................................................................................55
8.6.7 Function Checks.................................................................................................................55
8.6.8 On-load Checks..................................................................................................................56
8.6.9 Final Checks .......................................................................................................................56
9 Installation........................................................................................57
9.1 General ...............................................................................................................57

Table of contents
PRS-7395 5
9.2 Safety Instructions ............................................................................................57
9.3 Checking the Shipment.....................................................................................57
9.4 Material and Tools Required.............................................................................58
9.5 Device Location and Ambient Conditions .......................................................58
9.6 Mechanical Installation .....................................................................................59
9.7 Electrical Installation and Wiring .....................................................................61
9.7.1 TA Circuit Connection .........................................................................................................61
9.7.2 Power Supply, TV, BI and BO, Signal Wiring .....................................................................61
9.7.3 Grounding ...........................................................................................................................62
9.7.4 Shielded cable connection..................................................................................................62
9.7.5 Install the optical cable .......................................................................................................62
9.7.6 Install the communication cable .........................................................................................62
9.8 Installation check ..............................................................................................63
9.8.1 Check the installation .........................................................................................................63
9.8.2 Confirm the hardware and software version ......................................................................63
9.8.3 Device start.........................................................................................................................63
10 Maintenance ...................................................................................65
10.1 Maintenance General.......................................................................................65
10.2 Regular Testing................................................................................................65
10.3 Failure Maintenance ........................................................................................65
10.3.1 Hardware Failure ..............................................................................................................65
10.3.2 Software Failure................................................................................................................66
10.4 Replace Failed Modules ..................................................................................66
11 Decommissioning and Disposal ...................................................67
11.1 Decommissioning............................................................................................67
11.1.1 Switching off......................................................................................................................67
11.1.2 Disconnecting cables........................................................................................................67
11.1.3 Dismantling .......................................................................................................................67
11.2 Disposal............................................................................................................67
12 Manual Version History..................................................................71

Table of contents
6 PRS-7395

Introduction
PRS-7395 7
1 Introduction
1.1 Application Scope
PRS-7395 Merging and Control Unit (hereinafter referred to as "the device") is a device
integrating smart substation’s Smart Control Unit and Merging Unit with the function of local
operating box to provide digital interfaces and act as smart accessories for traditional CBs,
disconnect switches and instrument transformers.
The merging and control unit receives relevant status signals of traditional CBs and sends
received signals to the secondary devices such as protective, monitoring & controlling and digital
oscillography via a fiber optical interface. It also receives analog signals from traditional primary
instrument transformers, voltage signals from the voltage merging units or digital signals of other
merging units, and provides multiple secondary devices such as protective, monitoring & controlling
equipment, digital watt-hour meter and digital oscillography with sampling information via a fiber
Ethernet interface after synchronously processing all these signals. At the same time, it can receive
the control commands from associated bay devices via a fiber Ethernet interface to achieve the
operation and control of a CB. The data output formats conform to smart substation IEC61850
standard.
PRS-7395 can work together with CBs for three-phase linkage operation, main transformer or
reactor body and busbar devices under the condition of double configuration. The device, with 4U
enclosed design and strong anti-interference capacity, can be installed near a CB.
1.2 Product Function
Sampling
Digital Signal
Binary Input
DC Sampling
Apparatus Control
Time Synchronization
Supervision Alarm
1.3 Product Features
The device adopts a 4U 19” Case, reinforced chassis with multiple layers of shielding. It
features strict separation of strong and weak electrical components, as well as anti-vibration
and anti-interference design. It has high anti-interference performance and is suitable for
installation in harsh environments.
Device is based on a 32-bit high performance dual-core processor, internal high speed bus
and intelligent I/O ports, and the hardware is in modularized design and can be configured

Introduction
8 PRS-7395
flexibly, featuring interchangeability and easy extension and maintenance.
Modularized hardware design makes this relay be easily upgraded or repaired by a qualified
service person. Various function optional modules can satisfy various situations according to
the different requirements of the users..
The high-impedance, low-power relays reduce the power consumption and heat generation of
the device, thereby improving its safety.
The adoption of 16-bit A/D converter and the dual-channel sampling technology can ensure
the high accuracy and reliability of sampling. It samples at 80-point high speed sampling rate
per cycle and has a sampling frequency of 4 kHz.
It is with flexible communication modes. The device can be configured with up to 12
independent MAC fiber optical ports and one RJ45 debug port. It supports substation
communication standards like IEC61850.
Various methods of GPS time synchronization are supported in this device, including IRIG-B
synchronization and IEEE 1588, pulse per second (PPS).
Complete event recording function is provided: 8000 latest operation reports.
Under any network operating conditions with traffic shocks, the device will not crash or restart,
nor emit error messages. After the network abnormality disappears, the device can resume
normal operation.
The device has a self-diagnosis and alarm function, supporting both hard contact and sent to
communication client.
The device features a lockout alarm function, which includes signals for power interruption,
communication interruption, communication abnormality, GOOSE disconnection, and internal
device anomalies.
The device has undergone rigorous high and low temperature tests, allowing it to operate in
harsh outdoor environments. It is specifically designed for outdoor cabinets, meeting various
technical requirements such as moisture and heat resistance, waterproofing, dustproofing, and
radiation protection to ensure its suitability for outdoor installation.
The device offers a simulative LCD interface with a user-friendly human-machine interface,
allowing for easy on-site device debugging, testing, and other operations.

Technical Specifications
PRS-7395 9
2 Technical Specifications
2.1 Electrical Specifications
2.1.1 Current Transformer Ratings
Reference
IEC 60255-1, IEC 60255-27
Rated frequency (fn)
50Hz, 60Hz
Nominal range
fn ± 10Hz
Rated current (In)
1/5A
Thermal withstand capability
continuously
3×In
for 10s
20×In
for 1s
100×In
Burden
< 0.05VA/phase @1A, < 0.2VA/phase @5A
2.1.2 Voltage Transformer Ratings
Reference
IEC 60255-1, IEC 60255-27
Rated frequency (fn)
50Hz, 60Hz
Nominal range
fn ± 10Hz
Rated voltage (Un)
100V / 220V
Thermal withstand capability
continuously
240V
10s
360V
1s
400V
Burden at rated voltage
< 0.10VA @57.7V
2.1.3 Auxiliary Power Supply
Reference
IEC 60255-1, IEC 60255-26
Rated voltage
110V/125V/220VDC
Variation
80% ~ 120%
Maximum interruption time in the
auxiliary DC voltage without
resetting the IED
0%Un,100ms；
40%Un,200ms；
70%Un,500ms
At the Un=DC220V
Gradual shut down / Start up
Class C (60s shut down ramp, 5 min power off, 60s start up ramp)
Ripple in the DC auxiliary voltage
Class A (15% of rated @200Hz, 220VDC)
Maximum load of auxiliary voltage
supple
≤40W (normal state),
≤50W (maximum state)
2.1.4 Binary Input
Reference
IEC 60255-1, Clause:6.10.5
Binary input number
Up to 109
Rated voltage
110V/125V/220VDC
Pickup voltage
55% ~ 70% rated voltage

Technical Specifications
10 PRS-7395
“ON” value voltage
70% ~ 120% rated voltage
“OFF” value voltage
< 55% rated voltage
Maximum permitted voltage
120% rated voltage
Resolution of binary input signal
≤ 1ms
Resolution of SOE
≤ 1ms
2.1.5 Binary Output
Reference
IEC 60255-1
Item
Tripping output
Signal output
Binary output number
Up to 39
2
Output model
Potential-free contact
Potential-free contact
Max system voltage
250Vdc
250Vdc
Voltage across open
contact
1000V RMS for 1min
1000V RMS for 1min
Continuous carry
1250VA, 150W
1250VA, 150W
Short duration current
12A, 0.5s
6A, 3s
12A, 0.5s
6A, 3s
Breaking capacity
0.40A @ 110Vdc, L/R=40ms
0.30A @ 220Vdc, L/R=40ms
0.40A @ 110Vdc, L/R=40ms
0.30A @ 220Vdc, L/R=40ms
Wear resistance
100 000 cycles
100 000 cycles
Pickup time
< 8ms
< 10ms
Dropout time
< 5ms
< 8ms
2.2 Mechanical Specifications
Mounting Way
Flush mounted
Weight per device
Approx. 8.0kg (fully equipped)
Merchanical size
(width×high×deepth)
482.6mm*177 mm *283 mm
Hole size (width×high)
450 mm *178 mm
Display language
Optional: Chinese, English
Housing material
Metallic plates, parts and screws: Steel
Plastic parts: Polycarbonate
Housing color
Silver grey
Location of terminal
Rear panel of the device
Protection class
IEC60225-1: 2009
Front side:IP40 (IP52 with seal strip)
Rear side, connection terminals: IP20
Other Sides: IP40
2.3 Ambient Temperature and Humidity Range
Standard
IEC 60255-1:2009
Operating temperature range
-40°C ~ +70°C
Transport and storage temperature range
-40°C ~ +70°C

Technical Specifications
PRS-7395 11
Damp heat steady
+40℃ 95%humidity
Damp-heat test, cyclic
6 cycles, +25℃ to +55℃, Humidity 5% to 95%
2.4 Communication Interfaces
2.4.1 Ethernet Port
Medium
Parameters
Ethernet
Optical
Port number
Up to 12
Connector type
LC
Transmission rate
100Mbits/s
Transmission standard
100Base-FX
Optical fiber type
Multi-mode
Wavelength
1310nm
Transmission distance
≤ 2000m
Protocol
IEC61850
2.4.2 Time Synchronization
Medium
Parameters
Optical Ethernet
Port number
1
Transmission distance
≤ 2000m
Timing standard
IRIG-B
2.4.3 Ethernet Port for Debugging
Medium
Parameters
Electrical Ethernet
(in front panel)
Port number
1
Connector type
RJ-45
Transmission rate
100Mbits/s
Transmission standard
100Base-TX
Transmission distance
≤ 100m
Safety level
Isolation to ELV level
2.5 Type Tests
2.5.1 Mechanical Tests
Vibration response test
IEC 60255-21-1,
IEC 60255-27
Class 1： Vibration Response: Class 1 (10-59Hz:
0.035mm, 59-150Hz: 0.5gn)
Vibration Endurance:
IEC 60255-21-1,
IEC 60255-27
IEC 60068-2-6
10 to 55 Hz / 0.15 mm or 2 gn, 2 hours per axe
Shock Response
IEC 60255-21-2,
IEC 60255-27
IEC 60068-2-27
15 g 11 ms

Technical Specifications
12 PRS-7395
Shock Withstands
IEC 60255-21-2,
IEC 60255-27
Class 1 (15gn)
Bump
IEC 60255-21-2,
IEC 60255-27
Class 1(10gn)
Seismic
+Verifcation of function
IEC 60255-21-3
IEC 60255-1, Clause
6.13.3
Class I
2.5.2 Electrical Tests
Impulse Voltage Tests.
IEC 60255-27
Impulse test: 5kV (rated insulation voltage ≤
63V);Impulse test: 1kV (rated insulation voltage
＞63V);
AC or DC Dielectric Test
IEC 60255-27
Dielectric 50,60Hz 5/60s DC 2.8KV AC 2KV
Insulation Resistance
IEC 60255-27
>100Mohm @500Vdc
Rated insulation voltage
IEC 60255-27
kV , Hz , mn
Protective Bonding
Resistance
IEC 60255-27
Test current DC20A, >12 Vac /Vdc, >60s,< 0.1
ohm
High Voltage Impulse
IEC 60060-1
5 kV, 0.5 J
Electrical Disturbances (1
MHz Burst)
IEC 60255-22-1
Class 3:2.5 kV CM,1.0 kV DM
2.5.3 Electromagnetic Compatibility
Burst Disturbance Test
/ Damped Oscillatory
Wave Immunity Test
IEC 60255-26,
IEC 61000-4-18
For Power Supply, Binary Input / Output:Common
Mode: 2.5kV, Differential Mode: 1kV;For
Communication Port:Common Mode: 1kV
Oscillatory Transient
Immunity
IEC 61000-4-12
ANSI/IEEE C37.90.1
Ring Wave, Damped Oscillatory,2.5 kV
Electrostatic Discharge
test
IEC 60255-26,
IEC 61000-4-2
Contact Discharge: 15kV, Air Discharge: 15kV
Fast Transient test
IEC 60255-26,
IEC 61000-4-4
(Power / Earth Port: 4kV, Signal / Control Port: 4kV)
1 MHz damped
oscillatory wave
IEC 60255-26
Supply:2.5kVCM,input/output:2.5kV,communication:2.5
kV
Semi-sinusoidal shock
in operation
IEC 60068-2-27
15 g / 11 ms, 1 shock per sense and per axe