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Over voltage under voltage protective relay for transmission line

Location:
ry/Region:, China ( Mainland)
Status:
New
Sample Availibility:
yes
Payment Terms:
Cash, Bank Transfer, Letter of Credit, T/T, L/C
Categories:
Home > Electronics & Electrical > Relays

Product Description

Over voltage under voltage protective relay for transmission line

PZ1120 power line protection is applicable to 10kV and below voltage class.
Usually it is installed in the high voltage switch cabinets, or loop grid cabinets that equipped with circuit breakers.

Functions

ClassifyDescription PZ1120
power line
AC input Ua, Ub, Uc, Uo√
Ia, Ib, Ic, 3Io√
Protection function Three-phase current protection√
Inverse-Time Over-Current√
overload protection √
zero-sequence current √
over voltage, low voltage
zero-sequence voltage
re-closeing, Acceleration√
Negative-Sequence Current
non-electricity protection√
light gas, heavy gas
high temperature, over temperature
Spare Automatic Switch
circuitanti-trip function√
communication RS485√
self checkfault alarm√
smart controlremote communication, remote control,
remote measure, remote adjust		√

Technical data

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power supply220V or 110V
frequence50Hz
currentAC 5A or 1A
current accuracy0.5
power accuracy1.0
frequence accuracy0.02Hz
response time<40ms
insulation resistance>100MΩ
material of shellAluminium alloy
protocolIEC60870-5-103, MODBUS, DL451-91
anti-EMI testimpulse interferenceIEC255-22-1 III
ESD interferenceIEC255-22-2 IV
radiated EM field interferenceIEC255-22-3 III
fast transient interferenceIEC255-22-4 A
mechinical standardanti-vibrationdurability IEC 60255-21-1:1988 4.2.2 I,
responsiveness IEC 60255-21-1:1988 4.2.1 I
impact resistancedurability GB/T 14537-1993 4.2.2 I,
responsiveness GB/T 14537-1993 4.2.1 I
anti-collisionGB/T 14537-1993 4.3 I
storage temperature-20~+55°C
working temperature-25~+70°C
relative humiditymonth average maximum relative humidity 90%, and minimum temperature 25°C with no condensation;
maximum realitive humidity less than 50% when highest temperature +55°C
air pressure86~106kPa, altitude less than 2km.
application10kV and below voltage class
boundary dimensions180X170X185mm

Details of borehole

Details of terminal diagram


Our Services
1.OEM, ODM service.
2.Afer-sales and technical guidance.
3.return visits.


About us
Xi’an Pengzhi Technology Co.,Ltd, an automatic and intelligent equipment supplier for grid transmission and distribution integrating research, development, production, marketing and engineering service, provides perfect intelligent solutions for power transmission and distribution users and individual custom-made technical services as required.

Led by experienced experts in electric power automation and recruiting young doctors and masters as the backbone, Pengzhi Technology, a technological innovation oriented enterprise, has built an elite team with great passion and creativity, and devotes to being the international front runner in the field electric power automation and intelligent operation and relay protection expert in the field.



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Contact Information

Company:
 Xi'an Pengzhi Electronic Technology Co., Ltd.
Phone Number:
  gion:China (Mainland)Country/Region:end
Fax Number:
 
 
Xi'an Pengzhi Electronic Technology Co., Ltd.
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