Switch status display and control device (HLK)

1、 Product Overview

The HLK series products are a new type of modular and intelligent operation measurement display device designed and developed based on the current development of medium voltage system switchgear technology.

This series of products integrates main circuit simulation indication, live indication and locking, power verification function, real-time temperature and humidity digital display, automatic heating and dehumidification control, automatic exhaust and cooling control, circuit breaker opening and closing status indication, energy storage, grounding switch indication, handcart position indication, intelligent error prevention voice prompt, human body induction alarm voice warning, manual and automatic energy storage selection, remote local switching, opening and closing operation, and RS 485 communication interface. It can be optionally selected according to needs. This product is equipped with an integrated layout on the switchgear, which simplifies the panel structure design of the switchgear, beautifies the panel layout of the switchgear, and improves the indication function and safety performance of the switch status.

This series can be used for 3-40KV indoor switchgear, suitable for various switchgear such as central cabinets, handcart cabinets, fixed cabinets, and ring main units. Compliant with IEC255-22 standard.

2、 Main technical characteristics

1. Operating environment

a) Temperature: The upper limit of ambient air temperature is+65 ℃, and the average value within 24 hours does not exceed+35 ℃; The lower limit of ambient air temperature is -40 ℃.
b) Humidity: The relative humidity of the atmosphere does not exceed 50% RH when the ambient air temperature is+40 ℃. Higher relative humidity can be achieved at lower temperatures, such as 95% RH at 20 ℃. Special measures have been taken to prevent occasional condensation on the surface of the product due to temperature changes.
c) Altitude: The altitude of the installation site shall not exceed 2000m.

2. Installation

a) The installation inclination with respect to the vertical plane shall not exceed 5 degrees;
b) It should be installed in a place without significant vibration and impact.

3. Hole size: 220mm × 165mm

4. Pollution level: The pollution level is "Pollution Level 3".

5. Protection level: IP20.

6. Electrical parameters

A) Working voltage: AC85-265V/DC90-375V.
B) Voltage circuit power consumption: ≤ 15VA.
C) Medium strength: ≥ AC2000V.
D) Insulation performance: ≥ 100M Ω.
E) Anti electromagnetic interference performance: in accordance with the standard requirements of IEC255-22.
F) Humidity measurement range: 0-100% RH.
G) Temperature measurement range: -40 ℃ to 120 ℃.
H) Human proximity sensing time: ≤ 3 seconds.
I) Dynamic flashing frequency: twice per second (on and off once).

7 Measurement accuracy

A) Humidity measurement: ± 3.0% RH.
B) Temperature measurement: ± 0.4 ℃.

3、 Symbol description of the panel:

Device panel diagram:

01: Remote/Local Switch	13: Exhaust work instructions	25: Live locking
02: Voice prompt	14: Overheating alarm indication	26: C live indication
03: Manual button	15: Heater disconnection alarm indication	27: C phase inspection electrical socket
04: "Manual" status indicator light	16: A simulation diagram pattern	28: B phase test electrical socket
05: Cabinet lighting button	17: Circuit breaker position indication	29: Indication of the working position of the handcart
06: Lighting status indicator light inside the cabinet	18: Position indication for hands-on vehicle testing	30: Position indication for starting the vehicle test
07: A-way sensor display indicator light	19: Handheld car work position indication	31: Energy storage knob
08: Humidity display window	20: Circuit breaker closing position indication	32: Grounding switch closing indication
09:B sensor display indicator light	21: Energy storage indicator	33: Grounding switch sub indication
10: Temperature display window	22:A live indication	34: Opening/closing switch
11: I Heater working instructions	23:A phase test electrical socket
12: II. Working instructions for heater	24: B live indication

3、 Installation and wiring terminal diagram of the device:

1. Dimensions and wiring terminals of the device:

2. Installation dimensions of the device (unit: mm)

Installation instructions: This product is an embedded structure. Simply make a hole on the switch cabinet panel with a size of 220mm × 165mm, and then fix it on the panel with the three matching mounting brackets.

3 Wiring instructions

A) The above device wiring diagram is applicable to the HLK-300 series product wiring diagram The specific wiring diagram may undergo minor changes depending on the different ordering requirements of the user.

B) The wiring method for the "temperature and humidity sensor shielding wire" is to connect one end to the "temperature and humidity sensor A or B" end and the other end to the attachment "temperature and humidity sensor".

C) After connecting the wires according to the terminal diagram and verifying them correctly, turn on the power supply.

D) Check whether other functions meet the requirements. For specific operations, please refer to the "Working Principle and Instructions for Use".

4、 Electrical connection diagram:

Organizing ..

5、 Working principle and usage instructions

1. Working power supply: AC/DC 85-265 V

2. Simulation indication section:

a) Circuit breaker status indication:

When the common terminal contact is connected to the circuit breaker closing contact, the circuit breaker is closed and the opening circuit is intact, the red analog strip of the middle V-shaped light is on; When the common terminal contact is connected to the circuit breaker tap, the circuit breaker opens and the closing circuit is intact, the green analog strip of the middle V-shaped light lights up; Circuit breaker position indication:

When the common terminal contact is connected to the working position contact, the two cross shaped red vertical analog bars light up;

When the common terminal contact is connected to the test position contact, the two cross shaped green horizontal simulation bars light up.

b) Grounding switch position indication: When the product is powered on, the green indicator light of the grounding knife is on.

When the common contact is connected to the grounding knife contact, the red analog strip of the V-shaped light below lights up, and the grounding switch is closed;

When the common contact is disconnected from the grounding knife contact, the green analog strip of the V-shaped light below lights up, and the grounding switch opens.

c) Energy storage indicator:

When the common terminal contact is connected to the energy storage contact, the red square analog light lights up, indicating that the circuit breaker has stored energy;

When the common terminal contact is disconnected from the energy storage contact, the green square analog light lights up, indicating that the circuit breaker is not storing energy.

Attention1When the common terminal is connected to the working position contact, it cannot be connected to the grounding knife contact again;

When the common terminal is connected to the circuit breaker contact, it cannot be connected to the grounding knife contact again.

The above operations will be reminded to the user through voice prompts that the operation has been violated.

notemeaning2All illuminated indicators do not light up when the power is lost.

2）The above contact signals all come from the auxiliary contacts of the circuit breaker.

3． Display information and instructions:

3．1 The HLK-320 display interface is shown in the figure on the right:

3．1．1The temperature and humidity sensors are not properly connected, or the corresponding digital display is damaged.

3．1．2The malfunction indicator light is on, indicating that the heater is not properly connected or has been damaged. If the humidity meets the requirements and the heater for heating is faulty, the "fault" indicator light will turn on and the "heating I" indicator light will flash (once per second); If the heater of Heating II is broken, the "Fault" indicator light will turn on and the "Heating II" indicator will be displayed

The light flashes (once per second).

3．1．3For temperature rise type: If the temperature meets the requirements and the heater fails during heating, the "fault" indicator light will turn on, and the corresponding "heating" indicator light of the faulty heater will flash (once every 2 seconds); If both temperature and humidity meet the heating conditions and the heater fails, the "fault" indicator light will turn on, and the corresponding "heating" indicator light of the faulty heater will flash (once every half second).

3．1．4When the buttons "Lighting" and "Manual" are pressed and effective, the indicator light next to them lights up, indicating that the function is turned on. Otherwise, it indicates that the function is turned off.

3．2The HLK-310 display interface is shown in the figure on the right:

3．2．1The humidity sensor is not properly connected, or the corresponding heating indicator light flashes (once per second) due to sensor damage. Humidity A corresponds to heating I, and humidity B corresponds to heating II.

3．2．2The temperature sensor is not properly connected or the sensor is damaged, and the display is as follows: Temperature A sensor is damaged, and the corresponding "exhaust" indicator light flashes (once per second); The temperature B sensor is damaged and the corresponding "overheat" indicator light flashes (once per second).

3．2．3The malfunction indicator light is on, indicating that the heater is not properly connected or has been damaged. If the humidity meets the requirements and the heater for heating is faulty, the "fault" indicator light will turn on and the "heating I" indicator light will flash (once per second); If the heater of Heating II is broken, the "Fault" indicator light will turn on and the "Heating II" indicator light will flash (once per second).

3．2．4For temperature rise type: If the temperature meets the requirements and the heater fails during heating, the "fault" indicator light will turn on, and the corresponding "heating" indicator light of the faulty heater will flash (once every 2 seconds); If both temperature and humidity meet the heating conditions and the heater fails, the "fault" indicator light will turn on, and the corresponding "heating" indicator light of the faulty heater will flash (once every half second).

3．2．5When the buttons "Lighting" and "Manual" are pressed and effective, the indicator light next to them lights up, indicating that the function is turned on. Otherwise, it indicates that the function is turned off.

4．Humidity and temperature display and control section:

4．1Humidity control value setting and control

Humidity control value setting range 0-99% RHIf the device isHLK-310At this time, it cannot be set by oneself, the control value is a fixed value, and the control value can be usedConfirmed by the user, the control value is set by the manufacturer at the time of leaving the factory, unless otherwise specified85%RH±%5RHThe return difference is5%RH）

4．1．1When the measured humidity value of Channel A exceeds the set value, the "Heating I" indicator light (green) corresponding to the product panel lights up, and the "Heating I" contact indicated on the back closes. The heater starts to start until the humidity value is lower than the set value - return difference. At the same time, the corresponding indicator light goes out and the contact opens, exiting the heating process. B route is controlled by A route;

Note:When the heating load of the circuit is disconnected (such as circuit A), the panel disconnection alarm indicator light will turn on (red), accompanied by the green indicator light of the humidity of the circuit (such as circuit A) flashing; B route is controlled by A route.

4．2Temperature control value setting and control

Temperature control value setting range: -40~120 ℃If the device isHLK-310At this time, it cannot be set by oneself, the control value is a fixed value, and the control value can be set by

The user confirms that the device temperature is set by the manufacturer at the factory, and unless otherwise specified, the device temperature is of the heating type with a control value of5℃The return difference is3℃And also wet

The temperature control shares the heating load, and as long as one of the humidity or temperature conditions is met, the heater will start heating

4．2．1riseTemperature type:For example, if the circuit is A circuit and the temperature of A circuit is set to rise, when the temperature value measured by the current A circuit sensor is lower than the set value of A circuit temperature, the "Heating I" indicator light (green) will light up, and the "Heating I" contact on the back will close. The heater will start until the humidity value is higher than the set value+hysteresis value, and the heating will exit.(Yes)The HLK-310 temperature control value is specified by the user and set by the manufacturer at the factory）

4．2．2Cooling type:For example, if the route is route A, after setting the temperature of route A to cool down, the current temperature value measured by the sensor on route A is higher than the temperature on route A

When setting the value, the "exhaust" indicator light (green) lights up, and at the same time, the "exhaust" contact indicated on the back is closed, and the fan starts to start until the temperature value is lower than (set)

When the value of the return difference is reached, the fan stops.(Yes)HLK-310The exhaust control value is specified by the user and set by the manufacturer at the factory）

4．3Overtemperature alarm:When the ambient temperature exceeds the set value for over temperature, the "over temperature" indicator light (red) lights up, and the "over temperature alarm" contact on the back indicator closes,

Until the temperature value drops below the over temperature alarm value of -3 ℃, the "over temperature" indicator light (red) will turn off, and the "over temperature alarm" contact on the back will disconnect.

(Yes)HLK-310The over temperature alarm value is specified by the user and set by the manufacturer at the factory）

Note: When the ambient temperature is greater than50℃At this time, the heater stops heating unconditionally.

5．High voltage live indication part

5．1 The indicator light information is shown in Figure 3 (subject to the specific product)

5．2 LED startup voltage (KV): ≤ rated bus voltage × 0.15-0.65VN

Locking start control voltage (KV): ≤ rated bus voltage × 0.65VN

The rated capacity of the output contact of the locking relay is AC220V/5A. The action law of the locking relay is as follows:

condition	status
When there is no auxiliary power supply	Locking contact disconnected, operation prohibited
When there is an auxiliary power supply and either phase of the high voltage is charged	The locking contact is disconnected and operation is prohibited. Red light on
When there is an auxiliary power supply and none of the high-voltage three phases are charged	The locking contact is closed, allowing operation. Green light on

The live indicator lights A phase, B phase, and C phase are used to indicate whether the main circuit is live. If one or several phases of the main circuit A phase, B phase, or C phase are live, the corresponding live indicator light will turn on (red light). At this time, the "live lock output" contact on the back will be disconnected, and the lock indicator light will turn on (yellow light); When all three phases are not charged, the corresponding charged indicator lights do not light up. At this time, the charged lockout output is closed and the lockout indicator light does not light up.

a) Connect the electrical signal A, the live indicator light A is on, and the live lock output is activated; Voice prompt: "The main circuit of this cabinet is electrified";

b) Connect the electrical signal B, the live indicator light B is on, and the live lock output is activated; Voice prompt: "The main circuit of this cabinet is electrified";

c) Connect the electrical signal C, the live indicator light C is on, and the live lock output is activated. Voice prompt: "The main circuit of this cabinet is electrified".

Attention: When testing with mains power, please connect a 0.01uF/275V capacitor or a 30k/2W resistor in series at each end of the three-phase ABC input; When conducting a voltage withstand test on a system and reaching the rated voltage, please unplug terminals 38-41 and short-circuit them.