Zhuhai Wanlida Electrical
Automation Co., Ltd.
http://www.zhwld.com
User’s manual of MMCU-810Hc integrate
protection and monitoring device
Prepared by : Gao Feng
Proofed by : Qiu Lei
Approved by: Lin Cun Li
Document No.: WLD [K]-JY-320-2015 Version No.: V1.01.01
Date of publication: February, 2016
Copyright: Zhuhai Wanlida Electrical Automation Co., Ltd.
Note: Our company reserves the right to modify this manual. For any inconsistency
between the product and this manual, please contact us for relevant services.
Technical support hotline: 0756-3395398 Fax: 0756-3395500
User’s Manual for MMCU-810Hc capicitor protection and monitoring device WLD[K]-JY-320-2015
F o r e w o r d
1. Model description
MMCU-810Hc is the microcomputer protection and monitoring device, the
structural type of the MMCU-810Hc series protection is Hc.
2. Standards referenced
General specification for static protection, security and automatic equipment, DL
478-2001
Technical code for relaying protection and security automatic equipment
GB/T 14285-2006
Protective relay and automatic equipment design rules of power equipment
GB50062-92
Transformer substation correspondence network and system DL/T 860
Intelligent substation technology norms Q/GDW 383 -2009
Intelligent substation relay protection technical specifications Q/GDW_441-2010
IEC61850 engineering application model Q/GDW 396-2010
3. Caution
It is prohibited to plug or unplug the plug-ins, in order to avoid damage to the device.
It is prohibited to do digital output test when the device is running with primary
equipments.
User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
1. Scope of application
MMCU-810Hc microcomputer protection and monitoring device is suitable for below
110 kV voltage class of auxiliary power system and transformer substation. It is a new
generation of measurement and control device, that is draw lessons from the past of the
similar product r&d and field operation experience for many years by our company,
adopted the latest technology of home and abroad, and based on the 32-bit PowerPC
microprocessor hardware platform.
2. Device specifications
32-bit PowerPC microprocessor
Real-time multi-task operating system and C++ program techniques, realizing
online programming
Collecting 12 ways of AC quantities, and the current and voltage should be
selected according to actual needs. Or collecting 14 ways of 4~20mA DC quantities
for measurement of non-electric quantities, such as temperature, pressure, and
realizing online monitoring.
Device can collect 20 way switch quantity, in order to monitor the status of
switch quantity in real-time. And through the network device can upload remote
signal to the backend in real-time.
Device is equipped with the optional four road electric pulse acquisition function,
acquire and count the electric pulse in real-time. And through the network device
can upload the electric pulse telemetering value to the backend in real-time.
Device has 20 road outputs, they can be set to 18 remote control quantity to
control 9 circuit breaker. The background can through the network to realize the
distance control of the field.
Performance calculation. Based on the acquired voltage and current, it can
calculate the corresponding power in real-time, including active power, reactive
power and power factor. And through the network device can upload the power
telemetering value to the background in real-time. It can calculate the power of two
lines, and channel can set the current and voltage flexibly that are participated in the
power calculation.
Integrating perfect metering functions, having the electric energy quality analysis
function
Having the perfect harmonic analysis function, it can be set up to monitor 1 ~ 15
times harmonic data of any two way communication channels.
Having circuit breaker inspect synchronous closing circuit function.
Frequency measuring channels can be set up, the device can be set up to collect
the frequency of any two way communication channels.
Double-screen display (LCD display and nixie tube display), easy for inspection
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Excellent hardware interchangeability, easy user maintenance and reduced
quantity of spare parts
Using a 6U, 19/3” standard enclosure in a rear plug-in structure; the device can
be installed in site on a switchboard or combined in a centralized manner
With industrial ethernet port and standard RS485 multipoint communication port.
Supports IEC-60870-5-103(RS485 communication mode)、 IEC-61850-5-104
(Industrial Ethernet communication mode) standard communication protocol and
a new generation of substation’s communication standard IEC 61850.
The device is able to receive GPS clock second synchronization or IRIG-B
through RS485 differential voltage, and it can be done with monitoring system to
accomplish GPS precise clock synchronization or Ethernet-based SNTP
synchronization.
Support network printing function, include two ways: real-time print and artificial
print.
Support virtual correspondent node remote test, including remote communication
to correspondent node, remote measure to correspondent node, event to
correspondent node, can online testing, it is convenient for debugger to debug the
device on-site. When you are in the mode of remote test, the all protect must be off.
3. Hardware structure
3.1 Disply
Under normal operating conditions, it showes measurements of each channel in
cycles, the user can according to need to definy the channel. We can monitor all kinds of
electric parameters in the "status" menu item in real-time. The last line of screen hints
information: IP address, the current time.
3.2 Signal led
There are 7 leds on the front panel of device, they means run, communications, trip,
alarm, fault, backup, remote.
1) The "run" led is flashing in the normal state.
2) When the device communication is normal, the "communications" led should be
flashing.
3) The "trip" led should be flashing in inspecting synchronous state, it means the
action of "success of synchronous " or "failure of synchronous ".
4) The "open" led is flashing means that circuit breaker is in break-brake state in
inspecting synchronous state. The "close" led is flashing means that circuit
breaker is in close-brake state in inspecting synchronous state.
4. Setting of parameters and setting values of the device
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
4.1 System parameters
Parameter Range Description
Settings of setting value zone number(Setting Zone No.)
Setting value zone
number(Setting 0-7 Set step:1(factory default 0)
Zone No.)
Communication settings(Comm. Setting)
NET Protocol 0-2 Set step :1 (factory default 1)
(0-Quit;1-IEC104; 2-IEC61850)
RS485 Protocol 0-2 Set step :1 (factory default 0)
(0-Quit;1-IEC103; 2-Modbus)
RS485
address(RS485 1-99 Set step:1(factory default 1)
Address)
RS485 baud Set step:1(factory default 2)
rate(RS485 0-5 0:2.4KB.1:4.8KB.2:9.6KB.3:19.2KB.4:38.4KB.5:
Baudrate) 115.2KB.
IP address
One section set step:1(factory default 192.168.0.118)
(IP Address)
SNTP Address It has four
One section set step:1(factory default 192.168.0.254)
(SNTP Address) sections. The
range of every
KW default
section is One section set step:1(factory default 12.8.6.1)
value(KW Default)
0-255
Printer IP One section set step:1(factory default
address(Printer IP) 192.168.30.119)
Setting of basic parameters(B.Parameters)
Rating Current(In) 0-1 Set step: 1 (factory default 0) 00: 5A; 01: 1A
Power calculation
0 - 1 Set step: 1 (factory default 0) 00:three ammeter
method method.01:two ammeter method
PT Wiring Mode 0-1 Set step: 1 (factory default 0) 00: Y-Y; 01: V-V
Harmonic Set the harmonic monitoring analog channel
monitoring Channel 0: exit from harmonic calculation function
0-12
Harmonic 1-12 corresponding channel 1-12.
monitoring Channe2 Set step: 1 (factory default 0)
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
Configuration phase angle viewing channel.
It can provide convenience for the field debugging,
Benchmark Angle
0-12 especially when the power calculation is wrong, we can
channel
search reason through this function conveniently.
Set step: 1 (factory default 1 : CH1)
frequency 1 channel Measure frequency values of any DC channel.
When the synchronous function is on, the actual
0-12 frequency channel measure the voltage of the same
frequency 2 channel
side of the bus and the side of the line.
Set step: 1 (factory default 0)
Reused Terminal Set step: 1 (factory default 0)
0-1
mode selection 00:input 01:pulse
Remote
communication ack 10-100ms Set step: 1 (factory default 40ms)
time (input ack time)
Real-time print
Set step: 1 (factory default 0)
report on/off(auto 0-1
00:Off;01:On
print report)
D/A channel setting(D/A Setting)
Select DA1~2 to output corresponding reference
quantities:
1 ~ 12 corresponding to CH1 ~ CH12. 13 ~ 15
corresponding to P1,Q1,COS1. 16~18 corresponding
to P2,Q2,COS2. 19~20 corresponding to F1,F2.
Voltage reference quantity: 0-120V corresponding to
4mA-20mA. Frequency reference quantity::45Hz—
DA1~2 Channel 55Hz corresponding to 4mA—20mA. Power factor
0-20
Selection reference quantity::0—1 corresponding to 4mA—
20mA,
Rating 5A:
Current reference quantity: 0-6A corresponding to
4mA-20mA,
Power reference quantity: 0-1000W corresponding to
4mA-20mA.
Rating 1A:
Current reference quantity: 0-1.2A corresponding to
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
4mA-20mA,
Power reference quantity: 0-200W corresponding to
4mA-20mA.
DA1~2 Adjustment
0.5-1.5 Adjust D/A channel 1~2(4-20mA) parameters
Factor
DA1~2 max value Set The maximum number of DA reference quantity
20mA (corresponding to 20mA)
0.0-5000.0
DA1~2 min value Set The min number of DA reference quantity
4mA (corresponding to 4mA)
Integral Energy
Positive active
energy 1
Positive reactive
energy 1
Negative active
energy 1
Negative reactive
energy 1 0-4294967.295 Set the energy base number.
Positive active kWh /kvh Set step: 0.001 (factory default 0)
energy 2
Positive reactive
energy 2
Negative active
energy 2
Negative reactive
energy 2
Channel factor setting(Channel Coef.)
Set step:0.001(factory default 1)
Channel data 1~14 0.5-5.0
Adjust the analog benchmark value of the 14 channels.
Channel Angle adjustment
Adjust the Angle of 14
Channel Angle 1~ channels。Set step:0.001
0°-360°
14 (factory default 0.00)
Channel show coefficient
Channel 1 show 1-2000 Adjust the display rate of 14 channels
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
coefficient (factory default 1)
…
Channel 14 show
coefficient
The voltage ratio when calculating the power
Power 1 show
coefficient 1 (factory default 1)
The current ratio when calculating the power
Power 1 show
coefficient 2 (factory default 1)
The voltage ratio when calculating the power
Power 2 show
coefficient 1 (factory default 1)
The current ratio when calculating the power
Power 2 show
coefficient 2 (factory default 1)
Power channel setting
Power 1 voltage 1
channel
Power 1 voltage 2 Device can calculate active power, reactive power,
channel power factor of two loop (P1, P2) at the same time, Set
Power 1 voltage 3 this parameter to be used to specify the channel
channel location participated the calculative electric quantity.
Power 1 current 1 0-11 corresponding to channel 1-12, 12:Power
channel calculation function exit. factory default 1-12 in turn.
Power 1 current 2 Notice:When PT connection mode is Y - Y and power
channel calculation model is two ammeter method, 3 ways
Power 1 current 3 current channels must have 1 way set to quit, or the
channel second way is exit acquiescently.
0-12
Power 2 voltage 1 When PT connection mode is Y - Y and power
channel calculation model is three ammeter method, Power
Power 2 voltage 2 . . . . . .
channel calculation formula: P Ua IaUb I b Uc Ic
Power 2 voltage 3 When PT connection mode is Y - Y and power
channel calculation model is two ammeter method, Power
. . . . . . .
Power 2 current 1 calculation formula: P Ua IaUc IcUb (Ia Ic)
channel
When PT connection mode is V - V, Power calculation
Power 2 current 2
. . . .
channel formula: P Uab IaUbc Ic
Power 2 current 3
channel
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
Output width setting
Output 1 pulse width Set the time how long the remote control export is
… closed to keep.
When set to any value greater than 0, it means that
remote control switch exports will automatically return
0.00-550.00s after the time delay.
Output 18 pulse width When set to 0, it means that remote control switch
exports will not automatically return, and will return
after received the open commend.
Set step:0.01s(factory default 0.50s)
Channel attribution setting
00:I-Iac AC.01:I-I0 zero-sequence current.02:I-Idc
DC.03:U-Uac AC voltage.04:U-Udc DC voltage.05:
T-Idc Temperature (DC conversion value).06:T-Udc
Temperature (DC voltage conversion value).07:P-Idc
pressure(DC conversion value).08:P-Udc pressure
(DC voltage conversion value).09:L-Idc length
(DC conversion value).10:L-Udc length(DC voltage
Channel 1-14 0-12
conversion value).11:V-Idc volume(DC conversion
value).12:V-Udc volume(DC voltage conversion
value).
Channel 1,2,3,7,8,9 factory default 03.Channel
4,5,6,10,11,12 factory default 00.Channel 13,
14 factory default 02.Channel 13,14 can only be
configured to DC channel and DC conversion value.
Channel number setting
0:a1,1:b1,2:c1,3:a2,4:b2,5:c2,6:a3,7:b3,8:c3,
9:a4,10:b4,11:c4,12:a5,13:b5,14:c5,15:a6,
16:b6,17:c6,18:a7,19:b7,20:c7,21:ab1,22:bc1,
Channel 1-14 0-68 23:ca1,24:ab2,25:bc2,26:ca2,27:ab3,28:bc3,
29:ca3,30:ab4,31:bc4,32:ca4,33:ab5,34:bc5,
35:ca5,36:ab6,37:bc6,38:ca6,39:ab7,40:bc7,
41:ca7,42:dc1 ,43::dc2 ,44:dc3,45:dc4 ,
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
46:dc5 ,47:dc6 ,48:dc7 ,49:dc8,50:dc9,51:dc10,
52:dc11,53:dc12,54:01,55:02,56:03,57:04,58:05,
59:06,60:07,61:08,62:09,63:10,64:11,65:12,
66:13,67:14,68:(empty)
Channel 1-6 factory default 0-2.Channel 7-12 factory
default 3-5.Channel 13-14 factory default 42-43.
Channel unit setting
00:A,01:V,02:mA,03:℃,04:m,05:km,
06:Mp,07:m3
Channel 1-14 0-7 Channel 1,2,3,7,8,9 factory default 01.Channel
4,5,6,10,11,12 factory default 00.Channel 13,
14 factory default 02.
DC conversion setting
Temperature display
0-500.00
base value
Temperature
0-100.00
conversion base value
Temperature
1.00-300.00
conversion coefficient
Pressure display base Device can detect 4 ~ 20 mA DC Value, by adjusting
0-500.00
value the amount of DC conversion value, make the device
Pressure conversion to display the actual values of physical quantities
0-100.00
base value that DC Value corresponds to.
Pressure conversion DC conversion value = display base value + (DC
1.00-300.00
coefficient Value - conversion base value ) * conversion
Length display base coefficient
0-500.00
value (display base value factory default 0,conversion base
Length conversion value factory default 0,conversion coefficient factory
0-100.00
base value default 1)
Length conversion
1.00-300.00
coefficient
Volume display base
0-500.00
value
Volume conversion
0-100.00
base value
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Parameter Range Description
Volume conversion
1.00-300.00
coefficient
Synchronous parameter setting
Bus channel choice 1 0-12 Be used to specify the voltage on both sides of
Bus channel choice 2 0-12 synchronous point (factory default 0).For example,
The line side voltage choice CH7:Uab2.If the bus side
voltage Uab access to CH1,bus channel choice 1 set
to 1:CH1,Bus channel choice 2 set to 0:exit. If the
Line channel choice 0-12
bus side voltage Ua,Ub access to CH1,CH2,bus
channel choice 1 set to 1:CH1,bus channel choice 2
set to2:CH2.
Set synchronous closing output.
Synchronous output Set step:1(factory default 0)
0-17
choice 00:remote control 1,01:remote control 2,……,
17:remote control 18.
4.2 List of setting values
Setting value Range Description
Protection On/Off word
Synchronous function 1/0 1/0: On/Off (factory default Off)
Line no voltage & bus voltage 1/0 1/0: On/Off (factory default Off)
Line voltage & bus no voltage 1/0 1/0: On/Off (factory default Off)
Line no voltage & bus no voltage 1/0 1/0: On/Off (factory default Off)
Synchronous function setting
Set step:0.01V(factory default
Over-voltage lock 60.00 -120.00 V
120.00 V)
Low-voltage lock 10.00 -90.00 V Set step:0.01V(factory default 80 V)
Set step:0.01°(factory default
Permit fault angle 0-50.00°
50.00°)
Upper limit of frequency Set step:0.01Hz(factory default
0.03-0.50Hz
difference 0.50Hz)
Lower limit of frequency Set step:0.01Hz(factory default
0.01-0.48Hz
difference 0.05Hz)
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Setting value Range Description
Accelerate blocking of frequency Set step:0.01Hz/s(factory default
0.01-3.00Hz/s
difference 0.1Hz/s)
Set step:0.01V(factory default
differential pressure 0-20.00V
10.00V)
Switch action time 20-800ms Set step:1ms(factory default 100ms)
Synchronous reset time 5-300s Set step:1s(factory default 60s)
5. Check of protection function
5.1 Check preparation
5.1.1 Check before power-on
External lines connect correctly, appearance is not damaged, plug-in contacts well.
5.1.2 Check after power-on
Device is on the power supply, LCD screen loops to display the measurement values
of each channel.
5.1.3 Monitoring of binary input
The list is as follows:
Input
Terminal Input name Checking method
Terminal In [Status Display /Binary input] menu, put -220V DC
Remote/Local
B02 access to Terminal B01. Connect + 220 V DC with
Terminal input Terminal one by one, then check whether the
input2
B03 terminal displayed on the operation panel shows
Terminal “open” to “close”. After closing the Terminal, it is
input3
B04 whether showes from close to open, and record test
Terminal results.
input4
B05 For example:In order to check input 1,connect
Terminal Terminal B01 with -220V DC, connect +220V DC with
input5
B06 Terminal B02(input 1) , then check whether the
Terminal terminal displayed on the operation panel shows
input6
B07 change.
Terminal (Note:
input7
B08 1.When Terminal B12-B13 is set to “exit” in [setting
Terminal input8 value/Protection On/Off word/Synchronous function]
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Input
Terminal Input name Checking method
B09 menu, name is“input 11” and “input 12”;when set
Terminal to“on”, name displays“breaker status”and
input9
B10 “Synchronous start”。
Terminal 2. Standard Configuration of the input circuit of this
input10
B11 device is 220v dc power supply. It can also be partial
Terminal through adjust hardware, to use external 110v DC or
input11 breaker status
B12 24v produced by device as a drive into the power
Terminal Synchronous supply. When using self-produced 24V as opening
input12
B13 start into power, input common terminal is Terminal
Terminal B22(+24V) , Terminal B01is dangling. Need to
input13
B14 indicate when order.
Terminal 3.When it is “close” in [remote/local] menu, the
input14
B15 remote control is invalid.
Terminal
input15
B16
Terminal
input16
B17
Terminal
input17
B18
Terminal
input18
B19
Terminal
input19
B20
Terminal
Operate CIR Signal
B21
5.1.4 Monitoring of binary output
Binary output can be monitored under the [Binary output] menu, press the ““,
““ keys to flip over.
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
output name Checking method Output terminal
remote control 1 terminal A01,A02
remote control 2 terminal A03,A04
remote control 3 terminal A05,A06
remote control 4 terminal A07,A08
remote control 5 terminal A09,A10
remote control 6 terminal A11,A12
remote control 7 terminal A13,A14
remote control 8 terminal A15,A16
remote control 9 terminal A17,A18
remote control 10 terminal A19,A20
remote control 11 Select open and close menu, use “+”, “-” terminal A21,A22
remote control 12 key to operate. terminal A23,A24
remote control13 terminalA25、A26
remote control 14 terminalA27、A28
remote control 15 terminalA29、A30
remote control 16 terminalA31、A32
remote control 17 terminalA33、A34
remote control 18 terminalA35、A36
Trip Signal terminalB23、B24
Alarm Signal terminalB23、B25
All common open
All output
output
5.1.5 Monitoring of analog quantities
Analog quantities can be monitored under the [channel data], [power Data], [Pulse
electric degrees] ,[ Phase Angle display],[ Harmonic data 1],[ Harmonic data
2],[ Frequency Display]and [Synchronous date] menus in the [State Display] menu,
press the ““, ““ keys to flip over. The factory precision of the device has been
calibrated. The protection current is calibrated at double the rated current and the
measuring current at a single rated current. The list is as follows: (note: PT is Y-Y
model)
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
telemetering terminal
YC name Checking method
terminal D01,D02 channel 1 measurement
terminal D03,D04 channel 2 measurement
terminal D05,D06 channel 3 measurement
terminal D07,D08 channel 4 measurement 1,current channel: Add the rating, displayed
terminal D09,D10 channel 5 measurement deviation not exceeding 0.2%
terminal D11,D12 channel 6 2,zero-sequence channel :Add 1A, displayed measurement
terminal D13,D14 channel 7 deviation not exceeding 0.2% measurement
channel 8 3,voltage channel :Add the rating, displayed terminal D15,D16 measurement deviation not exceeding 0.5%
terminal D17,D18 channel 9 measurement 4,DC channel : Add 12 mA, displayed
terminal D19,D20 channel 10 deviation not exceeding 3% measurement
terminal D21,D22 channel 11
Note:when channel is set to temperature,
measurement pressure, length, volume, etc. Dc conversion
terminal D23,D24 channel 12
value,device display to 300.00 largest (unit)
measurement
terminal D25,D26 channel 13 DC value
terminal D27,D28 channel 14 DC value
P1
According to the Q1 Current add the rating, line voltage add
analog quantity in Cosφ1 the rating, change the phase angle, power
[system parameter/power displayed deviation not exceeding 0.5%,
channel setting], add P2 power factor displayed deviation not
electric quantity exceeding 0.2%,
Q2
Cosφ2
The active electrical
degrees 1
The negative
electrical degrees 1
Reactive power
According to the method electrical degrees1
Negative reactive
of testing the power to power electrical displayed deviation not exceeding 5%
add current and voltage degrees 1
The active electrical
degrees 2
The negative
electrical degrees 2
Reactive power
electrical degrees 2
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
telemetering terminal
YC name Checking method
Negative reactive
power electrical
degrees 2
According to benchmark
channel defined in The angle of AC
[system parameter / basic benchmark channel phase angle is 0 °
parameters /Benchmark channel n(included always,
Angle channel choice] angle of benchmark under testing channel phase angle displayed
menu, add AC current or channel) deviation not exceeding ±0.3°.
voltage.
According to Harmonic
monitoring channel Harmonic data 1
defined in
[system parameter / basic Display 2-15 harmonic content percentage
parameters / Harmonic and harmonic distortion rate of selected
monitoring channel 1] , analog channel. displayed deviation not
[ Harmonic monitoring Harmonic data 2 exceeding 10%.
channel 2]menu, add AC
current or voltage.
1. Set [value setting / protection on/off /
Synchronous function] to “1”, F1 is the
According to frequency frequency of channel 1, displayed deviation
channel defined in not exceeding ±0.02Hz.So on.
[system parameter / basic 2. Set [parameter setting / basic parameters
parameters / The / frequency 1 (2) channel] to “exit”, F1 and
frequency 1 channel F F2 is 0 always,
choice] [The frequency 2 3. Set [value setting / protection on/off /
channel choice]menu, Synchronous function] to “on”, no matter
add AC current or what [parameter setting / frequency 1 (2)
voltage. channel] is set to, F1 and F2 is the frequency
of the voltage on both sides of synchronous
point always,
According to check Set [value setting / protection on/off /
synchronous channel Synchronous function] to “on”, then display
defined in UM : busbar voltage,UL : line voltage,dV :
[system parameter /
Synchronous synchronous data voltage difference, FM:Bus frequency, FL:line
function/bus channel frequency, dF: frequency difference, dFt:
choice 1(2)] menu, add Change rate of frequency difference, δ:
AC voltage. phase difference, and so on in turn.
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
6. Check of function
6.1 Telemetering
Check of measuring quantity: according to the channel definition, add measurement
in terminal respectively, it not only can be observed in situ measurement, but also the
corresponding value of the measurement can be uploaded to the background through
the network.
6.2 Remote signaling
Check the 15 input quantities, according to the method of 5.1.3. When
short circuit every time, corresponding input status should be changed from open to
close in "input", and it can upload the information of shift through communication
network to the background.
6.3 Remote control
Set 12 output pulse width in [system parameter / Output width setting] menu. After
sending out open/close command by remote controlling, see whether switching contact
and switch do action, and it will return after the time stated on the "output pulse width” ,
time error is not more than 50 ms.
6.4 Check of integral electrical degrees function
Sending out the electrical degrees setting orders through the background
monitoring system, the integral electrical degrees value of device will be reset. After
adding the three phase current and three-phase voltage to the device, check the
accumulation of active power and reactive power electric degrees.
6.5 Changed quantity test caused by the distortion of input
waveform
Harmonic component value is superimposed on the fundamental harmonic, to
make the measured harmonic content less than 20%. Adjust the distortion waveform
amplitude, add harmonic from 2 to 13 times in turn, and change the phase angle
between the fundamental wave and harmonic, to make the quantity to get the biggest
change. Record the corresponding output value, the permissible error of power
frequency current is less than 2 times of level index, the permissible error of power
frequency voltage is less than three times of level index, the permissible error of
frequency is less than 2 times of level index.
To measure the active power and reactive power, it should add distortion current
firstly, then repeat adding distortion voltage. The permissible error is less than 3 times of
level index. When harmonic component exists, the system power calculation formula is
as follows:
The average value of active power is:
T
P 1 p(t)dt 1
VhIh cos(h )T 0 2 h VhrmsIhrmscos(h h)h1 h1
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
The average value of reactive power is:
1 T
Q q(t)dt
1
VhIhsin(hh)VhrmsIhrmssin(h )0 h
T 2h1 h1
Apparent power is:
S V I V 2 I 2 V I 1THD2 1rms 1rms V 1THD2rms rms hrms hrms I
h1
Among them,
V is RMS of the h times harmonic voltage. hrms
I h rms is RMS of the h times harmonic current.
h ,h is the phase position of the h times harmonic voltage and the h times
harmonic current respectively.
THDV is the total harmonic distortion,
THDI is the current total distortion.
THD 1 VV V 2 ( rms 2h ) 1V1 h2 V1
rms
1 THD I 2 ( I rms 2I h ) 1V1 h2 I1rms
6.6 Check of the synchronous function
Take that the synchronous voltage on both sides of parallel connection is Ua1 and
Ua2 as a example. It is set to “on” in [value setting / protection on/off / Synchronous
function] menu. It is set to “1” in [value setting / Synchronous function/bus channel
choice 1] menu: CH1. It is set to “0” in [value setting / Synchronous function/bus channel
choice 2] menu:exit. It is set to “7” in [line channel choice] menu:CH7. Connect input 12
shortly to start synchronous discrimination. When meet the synchronous conditions, it is
closed. If it is synchronous failure in the synchronous return time, device will
“synchronous closing failure”. The synchronous closing logic is as follows:
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
start synchronous is on
synchronou
Breaker is
&busbar voltage and line voltage are
not in the locking area
frequency difference< lower limit of synchronous
frequency difference closing output
Phase Angle &frequency difference
difference<allowable acceleration<locking value &
closing angle
Voltage dif feren ce< allowa ble
Voltage dif ference
≥
frequency d ifference< upper limit
The time to capture zero of frequency difference
& phase Angle difference the frequency d ifference> lower
first time
limit of freq uency difference
frequenc y acceleration
<setting value
Figure 1. dynchronous closing logic
When it is synchronous success, the closing output will do action and it will
automatically measure the movement time of the switching circuit, This value can be
seen in "report display" , the maximum value is measurable to 2000 ms. If the circuit
breaker status did not return, the measuring is time-out, and it will be shown as 2000 ms.
When “Line no voltage & bus voltage”(or “Line no voltage & bus no voltage”, or Line
voltage & bus no voltage) is set to “on”, and when there are no voltage on the single side
or both sides of bus or line, no voltage closing operation can be performed. As following:
syn chronous is on
Bre aker is open
Lin e no voltage & bus start
voltage is on
&, synchronousBusbar voltage is not in locking
No-voltage
area, and line voltage<7V
Lin
& closing output
e voltage & bus no
volt age is on &
Line voltage is not in loc,king ≥
area,a nd busbar voltage<7V
Lin e no voltage & bus no
volt age is on &
Lin e voltage and busbar
voltage<7V Figure 2. No-voltage closing logic
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Note: synchronous closing relay is output set for the parameters in [system parameter /
synchronous parameter setting/ synchronous export setting] menu, the closing pulse
width is the output pulse width corresponding to this export.
7. Caution
The appearance should be inspected before power is applied, to ensure that
the panel is OK without scratch, the screws are tightened, the device is
grounded firmly, all screws of plug-ins are tightened and in good contact.
When power is applied, the “Run” indicator on the panel should flash, nixie tube
and LCD display primary differential current in cycle.
The device is measuring circuit of 4~20mA DC signal, when testing, signal
should be supplied by special equipment, direct apply signal of relay protection
tester is prohibited.
It is prohibited to plug or unplug the plug-ins, in order to avoid damage to the
device.
8. Packing, transportation and storage
Packing: using completely enclosed packing box which is moistureproof,
dustproof, mechanical impact resistance.
Transportation: device is strictly prohibited intense impact, vibration or inversion
during transit.
Storage: device should be stored in a dry, well ventilated, free of dust and metal
powder place, and there should have measures to waterproof, moistureproof
and sun block.
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Addendum 1:Diagram of Terminal
I/O POWER CPU A C
Input comon
A01 Remote control1 B01 point-
A02 Remote control1 B02 Remote/Local NET D01 D02
A03 Remote control2 B03 Input 2 D03 D04
A04 Remote control2 B04 Input 3
A05 Remote control3 B05 Input 4 D05 D06
A06 Remote control3 B06 Input 5
A07 Remote control4 B07 Input 6 D07 D08
A08 Remote control4 B08 Input 7 NET2 D09 D10
A09 Remote control5 B09 Input 8
A10 Input 9Remote control5 B10 D11 D12
A11 Remote control6 B11 Input 10
A12 B12 D13 D14Input 11(breaker start)
Remote control6
A13 Remote control7 B13 Input 12(start sys.) D15 D16
A14 Remote control7 B14 Input 13
Run Light
A15 Remote control8 B15 Input 14 D17 D18
A16 Remote control8 B16 Input 15
A17 Remote control9 D19 D20
A18 Remote control9 DEBUG D21 D22
D23 D24
A19 Remote control10 B17 Input 16 C01 GPS-A
A20 Remote control10 B18 Input 17 C02 GPS-B
A21 Remote control11 B19 Input 18 C03 D25 DCSIN1+
A22 Remote control11 B20 Input 29 C04 COM1A
A23 Remote control12 B21 Overhaul C05 COM1B D26 DCSIN1-
A24 Remote control12 B22 (+24V) C06 Shielded ground D27 DCSIN2+
A25 Remote control13 B23 Common terminal C07 COM2A
A26 Remote control13 B24 Trip Signal C08 COM2B D28 DCSIN2-
A27 Remote control14 B25 Alarm Signal C09 DCS1+
A28 note:Remote control14 B26 C10 DCS1- 、 、 are measure voltages.
A29 Remote control15 B27 Power off C11 DCS2+ 、 、 are measure currents.
、 、 are measure
A30 B28 Power off voltages.Remote control15 C12 DCS2- 、 、 are measure currents.
A31 Remote control16 B29 Power 5.DCSIn1~2 is 2-way 4~20mA DC input.
6.DCSOut1~2is 2-way 4~20mA DC
A32 Remote control16 B30 Power output.
A33 Remote control17 B31 7.Net1,Net2 are ethernet interfaces,COM1,COM2 are 485 interfaces.
A34 Remote control17 B32 Shielded ground 8.When sys. function is on,input11
and input12 can be seen as breaker
A35 Remote control18 start and start sys. input.
9.If +24V on power board is standard
A36 Remote control18 configuration or not,it is used
as an input power supply only when
using internal 24V.
Figure1: Terminal diagram of MMCU-810Hc integrate
protection and monitoring device
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User’s manual of MMCU-810Hc integrate protection and monitoring device WLD[K]-JY-320-2015
Addendum 2:Diagram of Wiring
AC plug-in unit
Remote
control 9
Remote
control10
MCU-810Hc Remote
control11
integrate protection and monitoring device Remote Net1 control12
Remote
Net2 control13
Remote
control14
Debug Remote
control15
Remote
control16
Remote
control17
Remote
COM A control18
C05 COM B
POWER plug-in unit Remote
Shielded ground control1
COM A
Remote
COM B
4~20mA control2
DCSOut1+
DCSOut1- Remotecontrol3
DCSOut2+
DCSOut2- Remotecontrol4
4~20mA
Remote
control5
Remote
control6
DCSIn1+
DCSIn1- Remotecontrol7
DCSIn2+
DCSIn2- Remotecontrol8
Figure2: Wiring diagram of MMCU-810Hc integrate
protection and monitoring device
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AC plug-in unit CPU plug-in unit
Input common
WC terminal- Input 18
WC Remote/Local Input 19
Input 2 Overhaul
Input 3 24V+
Input 4 Signal common
terminal
Input 5 Trip Signal
Input 6 Alarm Signal
Input 7
Input 8 Power off
Input 9 Power off
Input 10 Power+
Input 11(breaker start) Power-
Input 12(start sys.)
Input 13
Shielded ground
Input 14
Input 15
Input 16
Input 17
I/O plug-in unit