Digital Comprehensive Monitoring Device

Digital Comprehensive Monitoring Device

Digital Comprehensive Measurement and Control Device

BEPR-860 Series Digital Monitoring Device is a dispersed unit equipment-oriented monitoring device. It takes the Motorola MCU as its core processor. The internal part of each unit consists of the multi-CPU modules linked by the reliable and fast CAN bus. The functions of the various submodules of the device are allocated as follows: intelligent digital variable acquisition module (hereafter referred as DI), Intelligent AC acquisition modules (those containing 4TV and 4TA are hereafter referred as AC; those containing 8TA as AC-I, those containing 8TV as AC-U), intelligent temperature DC acquisition module (DC), intelligent control module (OUT), intelligent digital input and output module (DIO), non-intelligent AC input module (NAC), non-intelligent output module(NOUT), voltage parallel module (VP) network interface module(COMM) and other selectable module. The main module (CPU) is responsible for the management and collection of the information and configuration of the various submodules. Those special functions, e.g., synchronism, remote/ local, etc. are detected and discriminated by the main module. The functions of the module DI include the acquisition of the configurable switching variables, acquisition of the pulses and acquisition of the codes signals, etc.. The functions of the AC module include the acquisition of current, voltage, active power, reactive power, power factor, active electric energy and reactive electric energy. The DC modules acquire the external weak DC input variable, which may be the temperature or the DC voltage variables output by the DC transducer. The OUT module can implement the telecontrol / teleadjust functions. The DIO module can execute the telesignal, telecontrol / teleadjust functions to realize the function of the telesignal blocking telecontrol and slip blocking functions, etc..

There are two sizes for the cubicles of the monitoring device: 19 inch 4U standard cubicle and 19/2 inch 4U standard cubicle. A Power supply module and a main module for administration are mounted within each kind of cubicle and their positions in the cubicle are relatively fixed. They occupy the width of 60mm (for 19 inch cubicle, and 50mm for 19/2 inch cubicle) and 30mm. The width of the other modules is 30mm except the AC module whose width is 60mm. Moreover, the modules of 30 mm are inter-chargeable in the various slots of the cubicles. Their positions and configurations are relatively flexible. The main module for administration has the capability for a certain capacity of the switching variable acquisition (8-circuirt) analog variable acquisition (8-circuit) and signal output (8-circuit), which is usually used to drive the 8-circuit null contact output of the non-intelligent output module. If the function of synchronism is required, the NAC and NOUT modules can be configured at the left and right sides of the main module for administration to let the main module execute the discrimination and the command output of the synchronous closing function. The plugging-in position of these two modules is relatively fixed in their application.

Fig. 1-1 shows the schematic diagram for the configuration of the 19/2 inch cubicle (back view). Fig.1-2 shows that for 19 inch cubicle (back view). The AC module in the figure occupies the position for two DI (or DC, OUT, DIO) modules in which two DI /DC / OUT / DIO modules can be inserted. The position of DI / DC / OUT / DIO in the figure can be interchanged or increased or decreased or in other capacity allocation modes. The slots of any two continuous DI / DC / OUT / DIO modules can be inserted by AC modules; the various input variables of the DI modules themselves can be also let as the inputs of the different natures. All these modes make the configuration of the device very flexible. But we suggest that the user’s requirements be incorporated in the typical configuration schemes provided by our company. This is not only feasible for the administration of out manufacture, but also will realize the specification of the user’s administration. (Attention: Fig.1-1 and 1-2 are only used as the reference for configuration and do not represent the actual dimensions and they are not the sole mode for configuration.)

Capacities of the various modules: 20-circuits of digital variable input for DI module, 12-circuits of input for DC module, 10-circuits of open contact output for OUT module (the output of the 11th circuit is output jointly with that of the 9th circuit. For the control of circuit breakers and isolator, starting from the output null contact of the first circuit, the order is recommended to be arranged as open, close, open, close…), 11 circuits digital variable input and 5 circuits open contact output for DIO module, 4 circuits of current and 4 circuits of voltage for AC module, 8 circuits of current for AC-I module, 8 circuits of voltage for AC-U module, 8 circuits of open contact output (there is a pair of jointly-operated contact output for the first and third circuit respectively), 4 circuits of current and 4 circuits of voltage for NAC module.

Table 1-1 Simplified list of the parameters for the modules of BEPR-860 Series Device

Name of module

Slot

occupied

Occupied

width

(mm)

Inserting

position

not fixed

Selectable or necessary Is it an intelligent module Terminals from module(note) Acquired data capacity Output data/contact
AC

(occupied)

2*30

(not fixed)

selectable

(yes)

10+12I

4*U,

4*I

I,U,P,Q,

COS,+EP,

+EQ, -EP, -EQ

AC-I 2*30 Selectable 24I 8*I I
AC-U 2*30 Selectable 16 8*U UAC
DC 30 Selectable 14 12*DC UDC
DI 30 Selectable 22

20*DI/

coding/PI

DI, SOE,

coding, PI

DIO 30 Selectable 22 11*DI

(ditto),

5*digit-out

OUT 30 Selectable 22 - 10*digit-out
VP 30 Selectable × 22 -

10*N.O.,

1*N.C.

NAC 2*30 × Selectable × 10+12I

4*U,

4*I

I, UAC ,f
NOUT 30 × Selectable × 22 - 8*digit-out
CPU 30 × Necessary

12+2*

RJ45

8*DI,

1GPS

DI,SOE,

data of various

submodules

POWER 60 or 50 × Necessary × 12 - -
MMI × - × Necessary - - -
COMM 30 Selectable

3*RJ45,

2*DB9

-

(network/

communication:

interface/

conversion/

rout/printing server)

Note 1: “I” denotes current terminal in this list. “DB9” denotes 9-pin serial interface. “RJ45”denotes Ethernet twin-twisted interface. Others are “MSTB2, 5” Series Phoenix terminals.


Technical Parameters

Rated parameters

Rated DC voltage input: 220V or 110V(indicate in ordering)Rated DC voltage output: +5V, ±12V, +24V(1), +24V (2)

Rated AC data:

AC voltage: 100V, 100 /V

AC current: 5A or 1A (indicate in ordering)

Rated frequency 50Hz /60Hz

Power consumption

DC circuit: 19/2 inch cubicle: <30W;

 19 inch cubicle: < 60W

AC voltage circuit: 0.5VA / phase

AC current circuit: 0.75VA / phase

Status variables, pulsing variable level 24V (18V-30V)Pulse width: 10ms (This parameter is related with the setting up or the time constant for the filtering of the pulsing variable inputs and can be set.)

Main technical property

AC circuit measuring range

Voltage: 0120V

Current: 01.2In

Contact capacity

Control output contact current-carrying capacity: 10A (250V AC / DC)

Control output contact breaking capacity: 10A (30V DC); 10A (250V AC)

Accuracy of the analog variable measuring circuit

AC current, voltage: 0.2 class

Power, KWH:     0.5 class

Temperature, DC:   0.2 class

Event of sequence records resolution: 1ms

Overload capability

AC current circuit: continuous operation at 2 times the rated current

Continuous operation for 10s at 10 times the rated current

Continuous operation for 1s at 40 times the rated current

DC power supply circuit: continuous operation at 80%115% the rated voltage

Response time for upward transmitted data:

Telesignaling position-variation < 1s;

Telemetering varied data < 2s

Insulation property        

Insulation resistance

Insulating resistance between active parts and passive parts or casings and electrically unrelated circuits is measured by the 500V megaohmmeter to be not less than 50MΩ for the various circuits at different levels under the normal test atmospheric conditions.

Strength of insulating media

Under the normal test atmospheric conditions, the protection can withstand the power frequency withstand voltage test of 50 Hz, 2000V and 1 min without any breakdown flashover and element damages. During the test, as a voltage is applied at any tested circuit, the other circuits are interconnected and grounded with an equivalent potential.

Impact voltage    

Under the normal test atmospheric conditions, the short-duration impact voltage test of 1.2 /50 µs standard lightning wave is done on the power input circuits. AC input circuits, output contact circuit to the ground and between circuits. The open test voltage is 5 kV.

Heat and moisture-proof performance

The protection can withstand the heat and moisture-proof test stipulated in the GB/T2423.9. The test is done at the temperature of +40ºC±2ºC, the related humidity of (93±3)%. The constant heat and moisture-proof test is done for 48 hrs. In 2 hrs before the test is finished, according to the requirements in section 2.3.1, the insulation resistance between the conducting circuits and external passive metals and casings and electrically unrelated parts are measured to be not less than 1.5 MΩ, the withstand voltage strength of the media not less than 75% of the voltage magnitude of the media strength test stipulated in the section 2.3.2.

Anti-electromagnetic interference

Pulse interference

The protection can withstand the interference test of 100 kHz and 1MHz at the severity class III, i.e. decaying oscillation wave at the test voltage of 2500V common mode and 1000V differential mode stipulated in GB/T14598.13-1998. As the pulsing group interface is applied, the protection will not misoperate or refuse to operate. In the test, the protection’s properties are still consistent with the stipulations in the technical specifications.

Electrostatic discharge

The protection can withstand the class III (8kV for air discharge, 6kV for contact discharge) electrostatic discharge test stipulated in the Standard IEC255-22-2.

Mechanical performance

Vibration

The protection can withstand the vibration duration test and vibration response capability test of the severity class I stipulated in the IEC 60255-21-1: 1988.

Impact   

The protection can withstand the impact duration test and impact response test of the severity class I stipulated in GB/ T 14537-1993.

Collision

The protection can withstand the collision test of the severity class I stipulated in the Section 4.3 of GB / T 14537-1993.

Environment conditions        

Ambient temperature : 

operation : -5ºC+ 40ºC.   

storage : -25ºC+70ºC, no exciting variables are applied at the limit value and no irreversible changes occur. The protection will operate normally after the recovery of temperature.

Relative humidity: maximum monthly average humidity 90% at the lowest temperature of 25ºC, (no condensation ). At the highest temperature of +40ºC, maximum humidity must not be over 50 %.          

Atmospheric pressure: 80110 kPa ( relative altitude above sea level is less than 2 km ).

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