Motor Protection Relay For Switchgear - Chinaprice: contact company for price
integrating switchgear measurement, display, protection and
Motor Protection Relays of Medium voltage switchgear
DM-100 series of switchgear intelligent protection,
measurement, display and control device is the product
developed by Zhuhai Wanlida Electric Co., Ltd, combining
with many years of operational experiences in power industry
and by the effective integration of switchgear measurement,
display function and miccroprocessor-based relay protection
and control functions.
Firstly create segregated installation mode
DM-100 switchgear intelligent protection, measurement,
display and control device is designed by the main body of
device and human-computer interface segregation. The main
body of the device can be independently installed in the
instrument room of switchgear, and the large number of
wiring connected with control cable and analog signal
acquisition cable can be directly connected with terminal
strip within the instrument room, the man-machine interface
of the device can be installed on panel of instrument room
so as to focus on various human-computer interaction
function and communicate by Ethernet with protective main
body. It not only reduces the pressure of protective device
on the panel, but also greatly reduces the setting of over-
Originally created "protection", "measurement and display"
integrated products. with sophisticated switchgear
intelligent collection and control function.
It uses real-time multi-task operating system and C++
programming techniques and can carry out on-line programming
It uses large-screen color LCD with beautiful display, and
is easy to be operated. The user-defined buttons below the
screen define different functions combining with different
menus, which is easy to be operated. Meanwhile, each menu
offers help function to prompt the operation method of the
The communication uses dual-RS485 interfaces and dual
Ethernet interfaces. It supports power industry standard
code IEC-60870-5-103 and IEC-60870-5-104 communication
protocol. It can easily achieve redundant communication by
providing more communication interfaces.
It has harmonic analysis function of two-way selectable
1. Intelligent measurement and display functions:
Dynamic simulation screen
Temperature and humidity control
Live display and lock
Voice misoperation protection and dynamic display
Body inductive probe
Lighting within the switchgear
2. Measurement and control functions:
14-way telesignalisation open collection and record
IA, IB, IC, UAB, UBC, UCA, P, Q, COSΦ, U0, I0, F remote
It has two-way 1~11 times, i.e. a total of 22-way to upload
harmonic waves so as to meet the monitoring requirements
of power quality.
2-way bidirectional-integral electrical energy (Active Power
and Reactive power).
SOE event records
One-way 4~20mA output
3. Other features
The independent operation circuit with electrical trip
Small current circuit selection function
10 times trip records and 40 times event records
Many sets of constant value zones
Current protection in three-section voltage lockout
Inverse-time overcurrent protection
Current protection in direction of zero sequence voltage
√ (no direction)
Zero sequence current protection
Zero sequence overvoltage alarm
Zero sequence voltage lockout zero sequence current
protection at high-voltage side
Zero sequence constant time lag (inverse time lag) current
protection at low-voltage side
Negative-sequence constant time lag (inverse time lag)
Low voltage protection
Unbalanced current (voltage) protection
Low-cycle load shedding
Three-phase one-time reclosing
Bus bar charging protection
Technology shunt tripping (four-way)
PT broken line monitoring
Pt switch in parallel
- Posted By: Zhuhai Wanlida Electric Co., Ltd.
- Phone: 867563395623
- Address: Wanlida Relay Protection Industrial Park, No. 1 Te, Zhuhai, China
- Website: http://www.zhwld.com/en
Published date: August 22, 2013 -
- Business Description: Incorporated in 1991, Zhuhai Wanlida Electric Co., Ltd. (www.zhwld.com)
('the Company'), is located in Relay Protection Industrial Park, No.1
Technology Road, Science and Technology Innovation Coast, High tech
Zone, Zhuhai City, coving a land area of approximately 60 thousand
square meters (including Park 1 and Park2). The Company was listed for
equity financing on November 13, 2007 (equity securities abbreviated as:
Wanlida stock certificates, code: 002180), with a registered capital of
124,980,000 Yuan. The Company keeps on her aggressive 'production,
study, research and application' co operation with the famous academies
such as Tsinghua University, Chinese Academy of Sciences and Central
China University of Science and Technology and carries out relevant
technology innovation. It is a national high tech enterprise that deals
with specialized development, production and sales of substation
integrated automation systems and Medium voltage variable frequency
drives, Medium voltage magnetically controlled soft starters, Static
synchronous compensator(STATCOM/SVG), Static VAR compensator(SVC),
Active power filter(APF/AHF), Thyristor switched capacitor bank
(TSC/TSF), High voltage direct current light transmission systems etc
power electronic equipments. In addition, the Company is known as a
famous manufacturer and backbone enterprise of transformer substation
integrated automation and power electronic equipments fields in China,
and it also acts as fresh blood in the field of energy conservation and
Wanlida passed the ISO9001 quality system certification, ISO14001 Environment Management System Certification and OHSMS18001 Occupation Health &Safety Management System Certification; All products passed the test of sated authoritative inspection bureau. And it had been rated as 'National High and New Technology Enterprise', 'Enterprise Recommended by State Economic and Trade Commission for Reconstruction of Urban and Rural Electric Grids', 'Key Software Enterprise Covered by National Program', 'Excellent enterprise of China', 'First choice Manufacturer for Electric Framework Protocol Sponsored by CNPC', 'Excellent Enterprise of Guangdong Province', 'Optimum Good faith Enterprise of Guangdong Province', 'Contract honoring Enterprise of Guangdong Province', 'Top 10 Private Enterprises of Zhuhai City', and 'Enterprise with Grade AAA Bank Credit '.
Wanlida has a very strong R&D teamwork which has a population of over 100 with doctor's degree, postgraduate degree and bachelor's degree etc, and all of the products are designed strictly according to IEC standards; Wanlida has modern standard workshops, it brought advanced SMT production lines and wave soldering machines into company from abroad, and built the first class high voltage and big capacity power electronic equipments assembling and test platform, which is able to realize full load test and ensure that all of products have exquisite technics and reliable quality; At present, Wanlida covers all of domestic areas except Hongkong, Macau and Taiwan, and it also sells the products to Southeast Asia, Middle East, South America, Africa etc over 20 countries.
The Company aims to grow into the most dedicated electric automation enterprise in the world, and commits itself to building the aircraft carrier of power electronic energy efficiency products.
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