Kyongbo Electric GDR-M02 User manual

Digital Motor Protection Relay (GDR-M02) User's Manual (V1.00)
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KyongBo Electric Co.,Ltd
Digital Motor Protection Relay User's Manual
TYPE : GDR-M02
2010. 04. 12
Version 1.00
Kyongbo Electric Co., Ltd.

Digital Motor Protection Relay (GDR-M02) User's Manual (V1.00)
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KyongBo Electric Co.,Ltd
Safety Precautions
This document is for the safety of the user, and to prevent property damage.
Be sure to read the user manual carefully, and use the product accordingly.
The user manual must be kept in a place where it can be easily seen by the product
user.
WARNING CAUTION
This symbol indicates the possibility
of death or serious injury.
This symbol indicates the possibility
of injury or damage to properties
only.
SYMBOLS
Be sure not to do.
Be sure to follow the instruction.

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WARNING
• Do not perform any wiring work while the power is on or
the product is in operation.
It may cause an electric shock.
• Must verify the status of the grounding connection before
starting the operation.
Otherwise, it may cause an electric shock, damage, or a fire.
• Do not operate the product with wet hands.
It may cause an electric shock.
• Do not use if the clothing of the cable is damaged.
It may cause an electric shock.
• Do not perform any wiring work when the main cable is live.
It may cause an electric shock, and a damage or a fire by the charged
voltage
of the converter.
• Do not disassemble the product even if the power is not
on, except for wiring or maintenance.
It may cause an electric shock by the charged current in the product.
• Let the electrical technician to perform wiring, test run,
and maintenance.
Otherwise, it may cause an electric shock or a fire by a wrongful
operation.
• Perform terminal work when cutting a cable.
Otherwise, it may cause an electric shock from the naked part of the
cable.
• Place the terminal cover on the terminal in the back after
the wiring work.
Otherwise, it may cause an electric shock.

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• Apply the rated power to the power source terminal.
Otherwise, it may cause a damage to the product or a fire.
• Follow the rated load on the input and output connections.
Otherwise, it may cause a damage to the product or a fire.
• Prevent screws, metal parts, water, or oil from entering
the product.
It may cause a damage to the product or a fire.
• Do not let the product be exposed to a direct sunlight.
It may cause a damage to the product.
• Extract and insert Case on a leveled surface.
Otherwise, it may cause a damage to the product.
• Do not store the product in a humid or a dusty area.
It may cause a damage to the product.
CAUTION

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Table of Contents
1. General Features ················································································································· 10
2. Technical Data ······················································································································ 12
2.1 Voltage, Current Input ································································································· 12
2.2 Rated Control Source Voltage ···················································································· 12
2.3 Rated Frequency ··········································································································· 12
2.4 Case ································································································································ 12
2.5 Time OverCurrent Element ························································································· 13
2.6 Instantaneous OverCurrent Element ············································································ 13
2.7 Time Ground OverCurrent Element ··········································································· 14
2.8 Instantaneous Ground OverCurrent Element ······························································ 14
2.9 OverVoltage Element ··································································································· 15
2.10 UnderVoltage Element ································································································· 15
2.11 Reverse Phase Element ································································································ 15
2.12 Negative-Sequence Current Element ··········································································· 16
2.13 Output Contacts ············································································································16
2.14 Insulation Test ··············································································································· 17
2.15 Mechanical Test ············································································································18
2.16 Noise Test ····················································································································· 18
2.17 Temperature, Humidity Test ························································································ 19
2.18 EMI : ElectroMagnetic Interference ··········································································· 19
2.19 Other Operating Condition ·························································································· 19
3. Protection Characteristics ····································································································· 20
3.1 OverCurrent Function ··································································································· 20
3.2 Ground OverCurrent Function ····················································································· 23
3.3 OverVoltage Function ··································································································· 24
3.4 UnderVoltage Function ································································································· 25
3.5 Negative-Sequence Current Function ·········································································· 27
3.6 Reverse Phase Function ······························································································· 28

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4. Subsidiary Function ·············································································································· 29
4.1 Metering ··························································································································· 29
4.2 Communication ················································································································ 29
4.2.1 RS-232C Communication ························································································ 29
4.2.2 RS-485C Communication ························································································ 30
4.3 Self Diagnosis Function ································································································· 31
4.4 Fault Recording Function ······························································································ 31
5. Display Panel Construction ································································································· 32
5.1 Front-side Display Panel Structure ··············································································· 32
5.2 Key Pad & Communication Connector ······································································· 33
5.3 LED ( Operating Indicators ) ······················································································· 33
6. Display & Setting Modes ··································································································· 34
6.1 Key Operations and LCD Construction ······································································· 34
6.1.1 LCD Default Display Condition, Backlight On/Off ·········································· 34
6.1.2 LCD Screen Display and Principles of Key Operation ···································· 34
6.1.3 One-button Display ································································································ 34
6.1.4 Menu-Tree ··············································································································· 34
6.1.5 Setting Modes ········································································································· 35
6.1.6 Measurement Screen ······························································································ 37
6.1.7 Protection Setting ··································································································· 37
6.1.8 Self-Diagnosis Screen ···························································································· 43
6.1.9 RS-485 Comm. Setting ························································································· 44
6.1.10 System Config. Setting ·························································································· 45
6.1.11 Recorder ·················································································································· 48
6.1.12 Test ·························································································································· 49
7. PC Software ·························································································································· 53
7.1 Program Menu ················································································································54
7.2 Communication Port Configuration ··············································································· 55
7.3 Setting Value Change Screen ······················································································· 56
7.3.1 Setting ······················································································································· 56
7.3.2 Status ······················································································································· 57
7.3.3 Report ························································································································ 58
7.4 Help ·································································································································· 59

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Order of Table
【Table 2.1】 Input Voltage ································································································· 12
【Table 2.2】 Rated Control Power ···················································································· 12
【Table 2.3】 Case ················································································································ 12
【Table 2.4】 Time OverCurrent Element ·········································································· 13
【Table 2.5】 Instantaneous OverCurrent Element ···························································· 13
【Table 2.6】 Time Ground OverCurrent Element ···························································· 14
【Table 2.7】 Instantaneous Ground OverCurrent Element ·············································· 14
【Table 2.8】 OverVoltage Element ···················································································· 15
【Table 2.9】 UnderVoltage Element ·················································································· 15
【Table 2.10】 Voltage Reverse Phase Element ·································································· 15
【Table 2.11】 Negative-Sequence Current Function ·························································· 16
【Table 2.12】 Output Contacts / Capacity ·········································································· 16
【Table 2.13】 Insulation Test ······························································································· 17
【Table 2.14】 Mechanical Test ···························································································· 18
【Table 2.15】 Noise Test ······································································································ 18
【Table 2.16】 Temperature, Humidity Test ········································································ 19
【Table 2.17】 EMI : ElectroMagnetic Interference ···························································· 19
【Table 2.18】 Other Operating Condition ··········································································· 19
【Table 3.1】 Time Curve Characteristic ············································································ 21
【Table 4.1】 Measurement Function ·················································································· 29
【Table 4.2】 Communication Method ················································································ 30
【Table 5.1】 Key Pad & Communication Connector ······················································ 33
【Table 5.2】 LED ( Operating Indicators ) ······································································ 33
【Table 6.1】 Time OCR Menu ·························································································· 38
【Table 6.2】 INST. OCR Menu ························································································· 39
【Table 6.3】 Time OCGR Menu ······················································································· 39
【Table 6.4】 INST. OCGR Menu ······················································································ 40
【Table 6.5】 OVR Menu ···································································································· 41
【Table 6.6】 UVR Menu ···································································································· 42
【Table 6.7】 NSOCR Menu ······························································································· 42
【Table 6.8】 RPR Menu ····································································································· 43
【Table 6.9】 RS-485 Comm. Setting ················································································· 44
【Table 6.10】 T/S Connection Menus ················································································· 46
【Table 6.11】 Setting Menus ································································································ 51
【Table 7.1】 GDR-M02 Program Menus ·········································································· 54
【Table 7.2】 Communication Port Configuration ····························································· 55

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Order of Figures
【Figure 3.1】 INST. OCR(IOCR) Logic Diagram ····························································· 21
【Figure 3.2】 Time OCR(TOCR) Logic Diagram ····························································· 22
【Figure 3.3】 INST. OCGR(IOCGR) Logic Diagram ······················································· 23
【Figure 3.4】 Time OCGR(TOCGR) Logic Diagram ························································ 23
【Figure 3.5】 OVR Logic Diagram ( 1 Phase ) ······························································· 24
【Figure 3.6】 OVR Logic Diagram ( 3 Phases ) ····························································· 25
【Figure 3.7】 UVR Logic Diagram ( 1 Phase ) ······························································· 26
【Figure 3.8】 UVR Logic Diagram ( 3 Phases ) ····························································· 26
【Figure 3.9】 NSOCR Logic Diagram ················································································ 27
【Figure 3.10】RPR Logic Diagram ······················································································ 28
【Figure 4.1】 RS-232C Circuit Diagram ············································································· 30
【Figure 4.2】 RS-232C Connection ····················································································· 30
【Figure 4.3】 RS-485C Connection Diagram ····································································· 31
【Figure 5.1】 Front Panel Display ······················································································· 32
【Figure 6.1】 Menu Tree ······································································································ 35
【Figure 7.1】 GDR-M02 Default Screen ············································································ 53
【Figure 7.2】 Communication Port Setting ········································································· 55
【Figure 7.3】 GDR-M02 Setting ·························································································· 56
【Figure 7.4】 GDR-M02 Status ···························································································· 57
【Figure 7.5】 GDR-M02 Report ·························································································· 58
【Figure 7.6】 Help ··············································································································· 59
Appendix 1. Setting Value at Product Shipping ································································· 60

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Order of Diagram
Appended 1. Dimensioned Drawings Unit : mm ····························································· 62
Appended 2. Internal Block Diagram ··················································································· 63
Appended 3. External Connection Diagram ········································································· 63
Appended 4. Over current, Ground Over Current Element NI Characteristic Curve ········ 64
Appended 5. Over current, Ground Over Current Element VI Characteristic Curve ········ 65
Appended 6. Over current, Ground Over Current Element EI Characteristic Curve ········ 66
Appended 7. Over current, Ground Over Current Element LI Characteristic Curve ········ 67
App en de d 8. Over Current, Ground Over Current Element KNI(KEPCO Type) Characteristic Curve · · · · 68
App en de d 9. Over Current, Ground Over Current Element KVI(KEPCO Type) Characteristic Curve · · · · 69
Appended 10. Over Current, Ground Over Current Element KLNI(KEPCO Type) Characteristic Curve · · 70
Appended 11. Over Current, Ground Over Current Element KLVI(KEPCO Type) Characteristic Curve · · 71
Appended 12. Over current, Ground Over Current Element DT Characteristic Curve ······· 72
Appended 13. Over Voltage Element NI Characteristic Curve ·········································· 73
Appended 14. Over Voltage Element DT Characteristic Curve ········································· 74
Appended 15. Under Voltage Element NI Characteristic Curve ········································ 75
Appended 16. Under Voltage Element DT Characteristic Curve ······································· 76

Digital Motor Protection Relay (GDR-M02) User's Manual (V1.00)
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KyongBo Electric Co.,Ltd
1. General Features
This Relay contains Relay elements of 50/51×3, 50/51N×1, 47×1, 46×1, 59×3, 27×3
at the same time, and is a Digital arithmetic relay designed and manufactured properly
for the protection when fault occurred such as overcurrent, ground overcurrent,
overvoltage, undervoltage, negative-sequence current, reverse phase etc. from directing
grounding system or high load grounding system using 3phase motor. And it is not just
easy to change the operation time and operation current, voltage but it can also record
and store fault information thereby greatly enhancing the reliability of the cable line,
and the main characteristics are as follows.
Features
▣ Total arithmetic type over-current & ground over-current, & over/under voltage &
negative-sequence current Relay.
▣ Variety of time characteristic curve
- OCR / OCGR : 10 time characteristic curve enclosed
- OVR : Inverse time, Definite Time Characteristic curve enclosed
- UVR : Reverse Inverse time, Definite time characteristic curve enclosed
- NSOCR : Definite time characteristic curve enclosed
- RPR : Definite time characteristic curve enclosed
▣ Duration of maintaining output contact is 0.00 ~ 60.00Sec (0.01Sec Step), and
variable setting is possible.
▣ Set value and measured values are Displayed digitally through LCD Screen. (4 x
20 LCD Screen)
▣ Enhance reliability with surveillance function at all times.
▣ Free selection of frequency Settings according to the rated frequency of the line.
(50 / 60Hz)
▣ Possible to set each of 4 Relay contact output (T/S Output) to 17 modes, and all
of these can be used for Alarms.
- contact for Trip(1a), contact for Signal(3a)
▣ Reliability is increased by the operation through output contacts when the Relay is
in abnormal state.
▣ Convenient PC Applications
- change setting values, verify the measurements, verify Fault
information, display status, Remote Reset.
▣ Possible to self-test through manual Trip command(Contact Test)
▣ Maintains thorough security using password input when changing setting values