MDM-B1(A)Series Distributed Complete Microprocessor-based Protections Measurement and Control Device Introduction
MDM-B1(A)series Distributed Complete Microprocessor-based Protections Measurement and Control Device integrate functions of relay protection, measurement apparatus, telemetering, remote supervisory and remote control.
This product adopts unified module hardware design, unified module program structure and SMD technique etc, so it has the good electromagnetic compatibility, and can fully support DL/T667-1999 (IEC870-5-103) information interface standard.
MDM-B1(A)series products are applicable for power transmission line of 35KV and less, transformer, capacitor, HV motor, reactor, busbar, and generator etc.
Main Products
MDM-B1L(A)feeder protection, measurement and control device;
MDM-B1T(A)Distributed transformer protection, measurement and control device;
MDM-B1M(A)HV motor protection, measurement and control device;
MDM-B1C(A)Capacitor protection, measurement and control device;
MDM-B1D(A)Current differential relay;
MDM-B1P(A)Longitudinal directional relay based on optical fiber;
MDM-B1V(A)Multifunctional voltage relay;
MDM-ET1(A)Automatic throw-in unit from back-up power.
Functions
|
|
Function |
Code |
B1L |
B1C |
B1D |
B1M |
B1T |
B1P |
B1V |
ET1 |
| Protection funtion |
Ratio differential |
87 |
|
|
Y |
|
|
|
|
|
| Longitudinal differential |
87L |
|
|
|
|
|
Y |
|
|
| Directional Over current |
67P |
|
|
|
|
|
Y |
|
|
| Over current with compound voltage |
51S |
Y |
|
Y |
Y |
Y |
Y |
|
Y |
| Over current |
51 |
Y |
Y |
Y |
Y |
Y |
Y |
|
Y |
| Negative sequence over current |
46 |
|
|
|
Y |
|
|
|
|
| Zero sequence over current |
50N |
Y |
Y |
Y |
Y |
Y |
Y |
|
Y |
| |
Zero sequence over voltage |
59N |
|
|
Y |
|
|
|
Y |
|
| Over voltage |
59P |
|
Y |
|
|
|
|
Y |
|
| Low voltage |
27 |
|
Y |
|
Y |
|
Y |
Y |
|
| Low frequency |
81 |
Y |
|
|
|
|
Y |
Y |
|
| Excitation loss |
40 |
|
|
|
Y |
|
|
|
|
| Out of step |
78 |
|
|
|
Y |
|
|
|
|
| VT failure |
|
Y |
|
Y |
|
Y |
Y |
Y |
|
| TA failure |
|
|
|
Y |
|
|
|
|
|
| control |
Auto-recloser |
79 |
Y |
|
|
|
Y |
Y |
|
|
| Automatic throw-in |
|
|
|
|
|
|
|
|
Y |
| Synchronous checking |
25 |
Y |
|
|
|
|
Y |
|
|
| Breaker operation |
|
Y |
Y |
Y |
Y |
Y |
Y |
|
Y |
| Input channel(13) |
|
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
| Output channel(9) |
|
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
| measurement |
Current voltage frequency |
|
Y |
Y |
|
Y |
Y |
Y |
|
Y |
| Power, power factor P,Q |
|
Y |
Y |
|
Y |
Y |
Y |
|
Y |
| Power consumption |
|
Y |
Y |
|
Y |
Y |
Y |
|
Y |
communication
and user
interface |
DL/T667 communication
(IEC60870-5-
103)
|
|
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
| Event recorder (195times) |
|
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
| Optical fibre communication interface |
|
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Y |
Standard Satisfied
GB14285-93 "Technical code for relay protection and security automatic equipment"
DL/T587-96 "Management code for the operation of microprocessor-based
relay protection "
DL478-92 "General specification for Static relay protection and security
automatic device"
DL/T671-1999 "General specification for protective device of
generator-transformer set based on microcomputer"
GB7261-2000 "Basic test method for relay and relay protective device"
GB4856 " Electrical relay's insulation test"
GB6162 "Static relay and protective device's electrical disturbance test"
GB/T14598.10-1996 "Fast instant disturbance test"
GB/T14598.13-1998 "1MHz pulses group disturbance test"
DL/667-1999 "Relay information interface standard"
Technical Parameters
Power DC voltage: 88V~127V,176V~253V
TA secondary rated current: 1A or 5A
TV secondary normal voltage: 100/3 V,100V,300V
AC rated frequency: 50Hz,60Hz
Output relay contacts: ON 220V,5A continuously
Off -L/R40ms,30WDC
Engineering Application
It has been widely used in projects of substation, power plants, power supply company, water conservancy, city planning, environmental protection and pump station of oil transmission etc.
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