EPEC100/200 series power environment controllers
Summary&application:
EPEC100/200 series power environment controllers are used in terminal boxes, power boxes, mechanism cases, electrical boxes, etc. places where needs real-time monitoring the temperature and humidity of environment. Acquisition and display of the load field temperature & humidity signals, setting of the control parameters, acquisition of gate travel signal, acquisition of fog signals, heating dehumidifier and fan control system, with RS485 module and transmitting output module to realize the remote of the data.
1. Main functions and characteristics:
◆It can measure the temperature & humidity of box environment. When the environment temperature is too low or the humidity is too high, it will automatically start the heaters to heat and dehumidify; when the environment temperature is too high, it will automatically start the fans to cool down.
◆It can measure the oil temperature of the oil-filled transformer, and give out over temperature alarm and over temperature trip signals.
◆It has fog alarming function.
◆It has several indicator lights, separately indicating the temperature and control state.
◆Optional for environment temperature transmitting output module, with -40.0℃~80.0℃ corresponding for 4~20mA output.
◆Optional for RS485 communication module, with baud rate of 2400~19200 to be chosen.
◆Optional for gate interlock trip function.
2.Model specification and selection description:
(Unit: mm)
Model | Measurement of A | Fog alarm | B | Analog output | RS485 communication | Gate interlock alarm | ||||||||
1-way A | 1-way heater | 1-way fan | 2-way A | 2 sets of heaters | 2 sets of fans | 11-way fog alarm | 22-way fog alarm | 11-way B | CC | DD | ||||
BWD-3KS | ● | ● | ● |
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| ● | ● | ● |
BWD-3KRS |
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| ● | ● | ● |
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| ● | ● | ● |
BWD-3KLS |
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| ● | ● |
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| ● | ● | ● | ● | ● | v |
BWD-3KDS |
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| ● |
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Note:
A means temperature & humidity
B means oil temperature measurement
C means Oil temperature over temperature alarm
D means oil temperature over limit trip
3.Main technical performance and parameters:
| Technical parameters | index | |
Oil temperature | Measuring range | -50.0℃~150.0℃ |
Accuracy | ±1.0℃ | |
Resolution | 0.1℃ 0%RH~99%RH | |
Environment temperature | Measuring range | -40.0℃~80.0℃ |
Accuracy | ±0.5℃ | |
Resolution | 0.1℃ | |
Environment humidity | Measuring range | 0%RH~99%RH |
Accuracy | ±5.0% RH | |
Resolution | 0.1%RH | |
Relay output | Heater/fan | Active output, the contact capacity is AC220V/5A, DC30V/5A |
Oil temperature over-temperature | Passive output, the contact capacity is AC220V/5A, DC30V/5A | |
Fog alarm | Passive output, the contact capacity is AC220V/5A, DC30V/5A | |
Oil temperature transmitting | Output 4~20mA corresponding oil temperature -50.0℃~150.0℃ | |
Environment temperature transmitting(*) | Output 4~20mA corresponding oil temperature -40.0℃~80.0℃ | |
Communication(*) | Mode | RS485 |
Protocol | ModBus-RTU | |
Baud rate | 2400bps, 4800bps, 9600bps, 19200bps | |
Gate interlock alarm(*) | Passive output, the contact capacity is AC220V/5A, DC30V/5A | |
Work power supply | Voltage AC220V±10%, frequency 50Hz/60Hz | |
Note:
the items remarked * are the optional items, which shall be specified by the customers when ordering.
4.External and installation size:
(Unit: mm)
| Model | Panel size | Shell size | Cutting size |
EPEC series | 96×96 | 90×90×72 | 92×92 |