OMA-36(JLSZXW8-36)
1.General parameters:
|
No.
|
item
|
units
|
specification
|
|
1.
|
Highest voltage
for
equipment Um (r.m.s.)
|
kV
|
36
|
|
2.
|
rated
frequency (fR)
|
Hz
|
50, 60 or 50/60
|
|
3.
|
Rated lightning
impulse
withstand
voltage (peak)
|
kV
|
170 kV，200 kV
|
|
4.
|
Rated
power-frequency
withstand
voltage on primary
|
kV
|
70
|
|
5.
|
Rated
power-frequency
withstand
voltage on secondary
|
kV
|
3
|
|
6.
|
Number of CTs and VTs
|
pcs
|
3VT+3CT
|
|
7.
|
Standard
|
/
|
IEC 61869-1:2007、 IEC 61869-2:2012
IEC 61869-3:2011、IEC 61869-4:2013
IEEE(ANSI) C57.13-2016
|
2.Function and application:
Overhead pole mounted primary metering unit comply with the latest applicable industry standards and local and/or national electrical regulations (such as IEC, IEEE (ANSI), CAN, GOST, CEF). It is used for three-phase overhead power grid energy measurement management and distribution network automation management system. The primary side measurement is more accurate, and the power loss of the line can be effectively measured to reduce losses.
3.Main features
3.1The medium voltage transformer of the metering unit is composed of 3 single-phase combined transformers, which saves installation space. There is a meter box under the installation base. The high and low voltage integrated anti-stealing design can be installed directly and convenientlyon the pole outdoors.
3.2 The metering unit is equipped with a meter box and connected to the transformer connection. The meter and communication module installation space are reserved in the box, and the meter box door switch, proximity sensor, data debugging port, conversion switch, and door lock seal structure are reserved. To prevent electricity theft .
3.3 The meter box body is made of corrosion-resistant alloy aluminum or low-carbon steel hot-dip galvanized, and the sealing design is weatherproof, acid and alkali corrosion resistant, and UV resistant.
3.4 The medium voltage combined transformer is insulated with epoxy resin solid encapsulation, the surface is dirt-resistant, UV-resistant, has excellent dielectric and mechanical properties, no oil, no gas, and maintenance free, meeting the requirements of safe operation and environmental protection
3.5 The CT of the medium voltage combined transformer can be configured double transformation ratios, and it is convenient to set the conversion switch to change the transformation ratio. The VT is equipped with anti-short circuit and overload protection design to avoid burning and explosion caused by VT short circuit and overload.
3.6 The primary connection is connected with NEMA contact strips and wiring clamps. The wiring terminals of the corresponding area can be configured according to requirements, and lightning arresters can be selected as required.
4.Technical parameters
Current transformer specifications
|
No
|
Item
|
characteristic
|
|
1.
|
Rated primary current
|
5A up to 1200A
|
|
2.
|
Rated secondary
current
|
5Aor1A
|
|
3.
|
Rated Continuous
Thermal Current
|
120%,125%,150%,200%,etc.
|
|
4.
|
Rated Short time
current (Ith) (thermal 1 second)
|
80xIpr,100xIpr
|
|
5.
|
Rated Dynamic
Current (Idyn)
|
2.5xIth
|
|
6.
|
Rated Output(VA)
|
5,10,12.5,15,20
|
|
7.
|
Accuracy Class
|
0.2S,0.2,0.5S,0.5,1 Metering
|
|
8.
|
Instrument Security
Factor (FS)
|
5,10,20
|
|
9.
|
Applicable Standard
|
IEC: 61869-1&2
|
Voltage transformer specifications
|
No
|
Item
|
characteristic
|
|
1.
|
Rated primary voltage（V)
|
33000/√3，35000/√3,
20125, etc.
|
|
2.
|
Rated secondary
voltage(V)
|
100/√3，110/√3, 115/√3, 120/√3, 110,115,120
|
|
3.
|
Rated Voltage
Factor
|
1.2/Continuous
1.5/30s,1.9/30s,1.9/8h
1.5/30s，1.9/30s，1.9/8h
|
|
4.
|
Standard connection
|
Y-Y connection
|
|
5.
|
Rated Output(VA)
|
15,20,25,30,50,75
|
|
6.
|
Accuracy Class
|
0.2,0.5,1,3 Metering
|
|
7.
|
Thermal burden(VA)
|
750
|
|
8.
|
Applicable Standard
|
IEC: 61869-1&3
|
If the parameter
requested exceeds the range of the above table, it can be determined after
negotiation with our company.
5.Dimensions and wiring schematic diagram
6. Special instructions
The company can design and manufacture specially according to the special requirements of customers.
Shenzhen Chuangyin Co., Ltd.---- a national high-tech enterprise. 
Chuangyin Activities 
Smart Distribution Solution 
welcome to join us 
Welcome to call the hotline : 0755-86000713 
