Voltage stabilizer for a gas heating boiler: types, selection criteria + overview of popular models
When installing the heating system, a voltage stabilizer for the gas boiler (CH) must be installed. It prevents damage to the electronic board in case of instability in the mains. To correctly select this device, you need to understand not only the characteristics, but also the principles of operation. Do you agree?
You will learn all about the varieties of stabilizers, their design and action by reading our article. We pointed out the guidelines necessary for the right choice and gave a rating of the best models. Based on our advice, you correctly equip the gas boiler with the device you need to operate.
The content of the article:
- The relevance of the voltage parameters on the boilers
- The principle of operation of stabilizers
- Types of household models
- Double conversion models
- TOP-15 voltage stabilizers for a gas boiler
- Selection Criteria for Purchasing an Instrument
- Voltage Regulator Manufacturers
- Conclusions and useful video on the topic
The relevance of the voltage parameters on the boilers
Even an inexpensive gas boiler has 15-25 sensors, information about which is processed around the clock by an integrated electronic board. Both the heating of the house and the safety of residents in the event of the failure of individual equipment elements depend on its work.
The cost of a new original electronic board for gas boiler is approximately 40-50% of its value, so the safety of this element should be monitored with special attention. For normal operation of the gas equipment board, service centers strongly recommend the use of a voltage stabilizer.
Without a stabilizer, there will be no free warranty service. This is especially true for country houses, where the voltage can drop in the evenings to 170-180 V or briefly exceed 250 V when the wires are broken.
In addition to the electronic board, a water pump can also burn out due to changes in the parameters of the power supply network, the replacement of which will also cost a lot. Therefore, it is better to purchase CH right away when buying a gas boiler in order to avoid future problems.
The principle of operation of stabilizers
The basic internal structure of the voltage regulator is similar for all its types.
Such components are usually hidden under the body:
- An autotransformer with several windings, responsible for matching the output voltage to the specified parameters.
- A control device that detects changes in input voltage.
- Circuit breakers. They turn off the stabilizer when the power parameters go beyond the operating range.
- Control automation, which changes the current path along the transformer windings, depending on the difference between the input and output voltages.
Additionally, the CH can be equipped with rechargeable batteries, allowing power to the connected devices after the disappearance of voltage in the network.
The principle of operation of the stabilizer is simple. If the input voltage deviates from the norm, the automation changes the current path along the transformer windings so that the output produces unchanged 220 V. Technically, the stabilization effect is achieved in several ways, depending on the type of device.
Types of household models
Not all types of CH are recommended for domestic gas boilers. Some categories of these devices are intended for industrial purposes and their use at home is impractical.
Therefore, only the following will be considered types of stabilizerssuitable for arranging a country house. We offer to get acquainted with models that are suitable for heating equipment and are sold in most specialized stores.
Servo or electromechanical
The principle of operation of voltage stabilizers for servo-type heating boilers is to move the current collector along the transformer windings using an electric drive. The movement is controlled by automation.
The voltage regulation of the stabilizer is achieved by changing the number of turns of the secondary winding of the autotransformer, which are involved in power transmission. This principle allows the device to increase or decrease the output voltage of the network, depending on its input value.
Advantages of servo drive CH:
- Resistance to overloads.
- The accuracy and smoothness of the output voltage settings is 3-5%.
- Long service life with regular service.
Cons of electromechanical devices:
- Sensitivity to negative temperatures at which the operation of the device is impaired.
- With active use, the collector brush requires replacement every 3-4 years.
- Low rate of voltage change - 10-40 V / sec.
- Servo noise.
- The occurrence of sparks during the movement of the current collector, which eliminates the installation of SN in rooms with a high probability of gas leakage.
The cost of servo drives is 3 times more expensive than relay and 2 times cheaper than thyristor ones. It is not recommended to include such SNs in one branch with a refrigerator, because constant voltage drops when the compressor is turned on will quickly lead to the erasure of the collector brush.
Thyristor or Triac
CH with thyristors are most preferred for gas boilers. The principle of their action is the formation of many electrical taps from the secondary winding of the transformer.
The circuitry of electronic CHs is somewhat similar to servo-driven models.Only here, for controlling the number of turns on the secondary winding, it is not the electric drive with the current collector that is responsible, but the individual outputs, the inclusion of which is controlled using thyristor devices and a processor.
When the voltage is reduced, the outputs of some thyristors are turned off and the outputs of others are turned on, which provide coverage of a larger number of turns of the winding.
The number of electrical taps from the transformer directly affects the smoothness and accuracy of voltage regulation. Their number can reach 20-25 pieces. Sometimes two-level stabilizers are used, providing even greater accuracy of the output voltage.
The described principle of thyristor SN operation leads to a number of advantages of such equipment:
- Service life 10-15 years.
- High response speed - 10-20 ms.
- The accuracy of setting the output voltage is from 1-3%.
- Operational resistance to frequent voltage changes.
- Ability to work at subzero temperatures.
- Resistance to electrical noise.
- Noiselessness due to lack of moving parts.
- Safety of the boiler board even with windings in the transformer.
- Smooth sine wave when switching.
The disadvantages of thyristor SN:
- High price. The cost of stabilizers on thyristors is 2-3 times higher than servo-drives, and 6-8 times higher than relay ones.
- The possibility of burnout of an expensive control board or the failure of one of the thyristors during overloads.
- The need for active cooling at high loads.
Most thyristor SNs have a power of 5 kW and are designed to regulate the voltage in the whole house or apartment. But about 10% of the models have a working power of up to 1.5 kW, which is enough to connect almost any household heating boiler.
Electronic or relay
Relay type CHs are the cheapest voltage control devices. Their working "core" are from 4 to 20 inductors with different windings.
Depending on the existing voltage difference between the input and output of the device, the automation connects certain elements. As a result, a coarse stepwise adjustment of the output parameters of the mains takes place.
Switching between coils is controlled by relays, which emit characteristic clicks.
The advantages of relay SNs are:
- Compact and light weight.
- Low price.
- Response rate within 0.1 sec.
- Operational resilience to frequent operations.
Disadvantages of relay devices:
- Flashing light when switching coils.
- Lack of synchronization of a sine wave.
- Loud clicking when the relay is triggered.
- Low accuracy for most models is 5-8%.
Cheap relay devices are unlikely to be recommended in a store for a gas boiler. But in the absence of money for more advanced models, this type of equipment is also suitable.
Double conversion models
This type of HF is a symbiosis with an uninterruptible power supply. The scheme of its work consists in a two-stage conversion of incoming electricity.
First, the aligned direct current with a reduced voltage is supplied to the battery. Then the electricity is removed from the terminals of the same battery, the voltage increases to 220V, the current is inverted to alternating, and the converted energy is supplied to the outputs of the stabilizer.
Such a scheme, even with a minimum battery capacity, provides complete autonomy of the output voltage parameters.
The benefits of double conversion CH are:
- Independence of the output voltage parameters from the internal house network.
- Complete protection of the boiler from power surges, short circuits.
- Lack of switching elements and delays.
- Always the right sine wave.
- Immunity
- The term of work is more than 10 years.
- The possibility of autonomous operation of a gas boiler without external electricity.
Disadvantages of voltage converters with double conversion:
- High price. The price of appliances with a power of 1 kW starts at $ 200.
- Low efficiency (90%) due to the operation of the cooling fan.
Double Power Conversion Stabilizers are great for equipping boiler house of a private house. But their price can reach half the cost of the heating system. Therefore, the final choice of a voltage stabilizer for a gas boiler often depends on the amount of money allocated for this.
TOP-15 voltage stabilizers for a gas boiler
Inverter and electronic stabilizers
RESTAURANT ACH-600/1-I
Inverter Stabilizer - Fast Response and Minimum Output Voltage Accuracy
The stabilizer of the Chinese assembly with a relatively small price tag demonstrates good performance. The ACH-600/1-I inverter type model is designed to connect household electrical appliances with a total power of 600 watts.
In addition to a gas boiler, the device is suitable for protection against power surges of computer equipment, televisions, refrigerators, lighting systems and low-power electric motors.
Characteristics of ACH-600/1-I:
- type - invertor with double conversion;
- active power - 600 W;
- input voltage - 90-310 V;
- output voltage - 218-222 V;
- stabilization error - 1%;
- response time - 1 ms;
- sockets - 2;
- temperature range - + 5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - short circuit, overheating prevention, barrier against interference and over / under voltage.
When adjusting the parameters, the ACH-600/1-I device operates silently, since it does not have a relay, and cooling is carried out in a natural way. The activation indicators of the user’s functioning mode are informed by light indicators located on the stabilizer body.
The level of protection allows the use of the stabilizer only in dry rooms heated in winter. The device must be installed so as to ensure free air exchange around the device.
- Performance - 1 ms response time
- Integrated Security System
- Silent operation - no relay clicks
- Output voltage stability
- Light indicator system
- Relatively low load power
- No display
Calm IS1500
Good ratio of active power, functionality and price tag
The domestic stabilizer of the InStab series, popular among buyers, attracts users' attention with a high rate of active power and the presence of several levels of protection.
Model Calm IS1500 operates on a transformerless double conversion circuit, the device has a high-performance microprocessor that guarantees the generation of high-precision sinusoidal voltage. The stabilizer has a bypass mode to provide power bypassing the stabilizer.
Characteristics Calm IS1500:
- type - invertor with double conversion;
- full / active power - 1500 V * A / 1120 W;
- input voltage - 110-290 V;
- output voltage - 216-224 V;
- stabilization error - 2%;
- response time - instant;
- sockets - 2;
- temperature range - + 5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - against short circuit, high-frequency interference and overload, overheating prevention, over / under voltage protection, built-in lightning protection.
The stabilizer is cooled by an integrated fan with adaptive power. The unit has compact dimensions and low weight, floor or wall installation is acceptable.
- High active power
- Instant response to voltage changes
- Informative display
- Integrated Security System
- Presence of bypass mode
- Complaints about noisy work
Lider PS1200W-30
Thyristor stabilizer with a wide range of operating temperatures
The thyristor stabilizer of the Russian manufacturer is designed to connect single-phase consumers whose power does not exceed 960 watts.
The unit consists of three parts (autotransformer, electronic switch, microprocessor control circuit), placed in a white metal case. On the front side there is an ON / OFF button and a three-color LED - each color indicates a specific mode of operation. Through perforation in the body, natural cooling is carried out.
Features Lider PS1200W-30:
- type - electronic thyristor;
- full / active power - 1200 V * A / 960 W;
- input voltage - 150-265 V;
- output voltage - 210-230 V;
- stabilization error - 4.5%;
- response time - 40 ms;
- sockets - 2;
- temperature range - -40 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - against short circuit, interference and overload.
On the back of the case there are eyes that allow you to hang the unit on a wall or rack. For floor installation legs are provided.
The Lider PS1200W-30 model can be operated indoors, the stabilizer can operate at sub-zero temperatures. The unit must be stored in more gentle conditions - at temperatures above + 5 ° C and humidity not more than 80%.
- Start Delay Option
- Possibility of operation at subzero temperatures
- Silent work
- Floor or mounted installation
- Indication of operating modes
- High price
- No bypass
- Response Time - 40 ms
- No display
PROGRESS 1000T
Thyristor single-phase stabilizer with a voltmeter and an informative display
Practical, reliable and highly effective household stabilizer with an efficiency level of 96%. The model provides power supply of the equipment with highly stabilized power supply (220 V +/- 5%) with significant fluctuations in the input voltage - 150-260 V.
The stabilizer is characterized by a simple device and a long working life. The operation of the device is implemented on thyristor keys and a step autotransformer. The PROGRESS 1000T is equipped with a voltmeter and displays the input / output voltage value on a digital display.
Features PROGRESS 1000T:
- type - electronic thyristor;
- full / active power - 1000 V * A / 700 W;
- input voltage - 150-260 V;
- output voltage - 209-231 V;
- stabilization error - 5%;
- response time - 10 ms;
- sockets - 2;
- temperature range - + 5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - against short circuit, interference and overload.
The metal case of the unit has a dielectric coating that protects against electric shocks and prevents the possibility of a short circuit. The PROGRESS 1000T is cooled through ventilation louvers located on the side of the cabinet.
- Digital indication
- Low noise
- High efficiency - 96%
- Quality assembly
- Warranty - 3 years
- High price
- No lightning surge protection
- Only for heated rooms
Calm R 1200SPT
Triac stabilizer with terminal connection
The model works on triac keys, has high stabilization accuracy and a good indicator of active power. The stabilizer is designed for fixed connection - there are no outlets in the unit, but a terminal connection to the mains is provided.
The R 1200SPT unit is cooled passively, that is, due to air circulation through the provided ventilation openings. Thanks to this solution, the device has compact dimensions and works almost silently.
Characteristics Calm R 1200SPT:
- type - electronic triac;
- full / active power - 1200 V * A / 960 W;
- input voltage - 170-250 V;
- output voltage - 212-228 V;
- stabilization error - 3.5%;
- response time - 40 ms;
- sockets - no, terminal connectors;
- temperature range - + 1 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, high-frequency interference, overheating, over / over voltage and overload.
The terminal block is located on the side of the chassis under the removable cover. On the front side there is a circuit breaker and an indication board.
At the output, the stabilizer produces a sinusoid without distortion. A distinctive feature is the operation of the R 1200SPT at the declared power even on the input input voltage range (150-265 V).
- High active power rating - 960 W
- LED indicator system
- Pure sine wave output
- Free cooling and quiet operation
- Easy installation - there is a mounting bracket
- Missing voltmeter
- No bypass
- Response Time - 40 ms
- No outlets - terminal connection
Relay stabilizers
Energy APC 1000
Great performance at an affordable price
Energy's APC 1000 Relay Stabilizer delivers high power output, stabilization accuracy, and a wide input voltage range.
The compact model stands out with its attractive design - a rectangular case 7 cm thick does not take up much space on the wall. The unit is equipped with a display showing the input / output voltage. Two outlets and a start button are located at the bottom of the case, on the back there are eyes for hanging the stabilizer.
Characteristics Energy APC 1000:
- type - relay;
- full / active power - 1000 V * A / 1000 W;
- input voltage - 85-270 V;
- output voltage - 211-229 V;
- stabilization error - 4%;
- response time - 10 ms;
- sockets - 2;
- temperature range - -5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from high-frequency interference, overheating, interference and overvoltage.
The APC 1000 has a short start delay (6 seconds). This function is relevant for some equipment (pump engines, refrigerators, etc.), which does not respond well to switching on immediately after switching off.
The stabilizer works almost silently, so it can be used in studio apartments, placing near gas boilers in the kitchen.
- Wide input voltage range
- Voltage display
- Launch delay
- Silent work
- Auto fuse
- No bypass bypass mode
- French sockets - type E with grounding
- Bright indication on the display
Energy Voltron 1000
Practicality of operation: low temperature tolerance, high efficiency and digital indication
Another representative of the Russian manufacturer of electrical engineering. The Voltron 1000 relay model protects household appliances from network anomalies. The design of the device has a high-speed relay with contacts made of tungsten.
The Voltron 1000 is easy to use. An output socket and an informative display are provided on the case - the input and output operating voltage are displayed on the board.
Features Voltron 1000:
- type - relay;
- full / active power - 1000 V * A / 700-1000 W;
- input voltage - 105-265 V;
- output voltage - 209-231 V;
- stabilization error - 5%;
- response time - 10 ms;
- sockets - 1;
- temperature range - -30 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, overload, under / over voltage.
Reviews on the work of the domestic stabilizer are mostly positive. The Voltron 1000 model is praised for its good price-performance ratio, the possibility of placement in unheated rooms: summer houses, garages or change houses. However, users have identified some weaknesses of the unit.
- Digital indication of input / output voltage
- Work at subzero temperatures
- Universal placement - floor or wall
- There is a delay in launch
- Circuit breaker
- Only 1 outlet
- No bypass mode
- Warranty - only 1 year
- Complaints about incorrect voltage display
Energy ACH 1000 (2019)
Budget proposal - relay type stabilizer for multi-stage protection
The single-phase stabilizer is designed to connect one electrical device with a capacity of 700 watts. Thanks to the design of the casing, the ACH 1000 (2019) unit is able to function smoothly at a temperature of -20 ° C. Even in such extreme conditions, the stabilizer continues to operate in a wide range of input voltage and quickly respond to voltage fluctuations.
The "core" of the device is the microprocessor unit - the element is responsible for automatically turning off electrical appliances at an unacceptable voltage level and controls the restoration of performance during normalization of parameters.
Features of ACH 1000 (2019):
- type - relay;
- full / active power - 1000 V * A / 700 W;
- input voltage - 140-260 V;
- output voltage - 202-238 V;
- stabilization error - 8%;
- response time - 10 ms;
- sockets - 1;
- temperature range - -20 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, overload, under / over voltage, delayed start.
The design of the stabilizer is made maximum convenient. On the front there is a large digital display and operating mode indicators, two control keys.
The stabilizer has an automatic fuse that trips when overload and short circuit, the cooling system is natural. The device operates economically, as evidenced by the high level of efficiency - 98%.
The stabilizer is suitable for placement in the country, in a private house, garage, small workshop or apartment. People present in the room will not feel discomfort from the operation of the unit - the device works quietly.
- Convenient control interface - display and indicators
- Work at subzero temperatures
- Low cost
- Silent work
- There is a carry handle
- No bypass function
- Only one outlet
- No terminal connectors
- Warranty - 12 months
- Accuracy of stabilization - 8%
BASTION Teplocom ST-1300 is.5
Outdoor stabilizer relay
High-quality stabilizer stands out among competitors with the possibility of outdoor operation.The tight plastic case is reliably protected from moisture and dust, which confirms the high degree of IP - 56.
Due to its operational characteristics, the stabilizer is used to provide high-quality power to sewer and drainage pumps, borehole pumps, irrigation systems and other outdoor equipment with a total power consumption of up to 950 watts.
Features of Teplocom ST-1300:
- type - relay;
- full / active power - 1300 V * A / 950 W;
- input voltage - 165-260 V;
- output voltage - 204-231 V;
- stabilization error - 7.5%;
- response time - 20 ms;
- sockets - no, terminal connection;
- temperature range - -40 ° С ... + 50 ° С;
- degree of protection - IP56;
- protective functions - from short circuit, overheating, overload, under / over voltage.
The stabilizer can also be used for a gas boiler. When choosing an aggregate, it is worth considering the conditions for its placement. If the stabilizer will not be subjected to extreme operating conditions, then it is not advisable to overpay for a high degree of IP.
- Wide temperature range
- High degree of protection - IP56
- Safe plastic case
- Warranty - 5 years
- High price
- Terminal connection only
- Input voltage accuracy - 7.5%
- No voltmeter
Powercom TCA-1200
Inexpensive and compact unit - a solution for low-power equipment
The relay type model is in demand among users. Many are attracted by low cost, the name of a popular brand and comprehensive protection. On the back of the case there are 4 sockets with grounding, on the front panels there are light indicators informing the user about the operating mode.
Features Powercom TCA-1200:
- type - relay;
- full / active power - 1200 V * A / 600 W;
- input voltage - 176-264 V;
- output voltage - 209-231 V;
- stabilization error - 5%;
- response time - no data;
- sockets - 4;
- temperature range - 0 ° С ... + 40 ° С;
- degree of protection - no data;
- protective functions - from short circuit, high-frequency interference, overloads, under / over voltage.
The model does not have a voltmeter, bypass mode and terminal connectors - with a modest price tag, you should not count on wide functionality. The stabilizer adequately performs its work, as evidenced by numerous user reviews.
- Low cost
- 4 output sockets
- Compact dimensions and light weight
- There is a protection against high-voltage impulses
- Low active power - 600 W
- No voltmeter and display
- Complaints of loud clicks of the relay
- No start delay and bypass function
- Smell plastic
Hybrid and Electromechanical Stabilizers
RESANTA ACH-1000/1-EM
High precision electromechanical stabilizer with an active power of 1 kW
The reliable electromechanical stabilizer calculated on work with a small load. The unit converts the incoming current, smoothes sudden surges, a prolonged decrease / increase in voltage, giving out equal 220 V. The front panel is equipped with an electronic voltmeter and a power button.
The device is cooled naturally - air circulates through the ventilation holes.
Characteristics of RESANT ACH-1000/1-EM:
- type - electromechanical;
- full / active power - 1000 V * A / 1000 W;
- input voltage - 140-260 V;
- output voltage - 216-224 V;
- stabilization error - 2%;
- response time - 10 ms;
- sockets - 1;
- temperature range - 0 ° С ... + 45 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, over / under voltage.
The ACH-1000/1-EM stabilizer is optimally suited for operation in a network with long-term ups or downs, but without frequent fluctuations. The optimal lower limit is 190 V.If the voltage drops to 140 V, the output power can be reduced to 50%.
- Reasonable cost
- The stabilization error is only 2%
- Digital voltage indication
- Auto fuse
- Convenient carry handle
- Only 1 outlet
- No bypass
Energy Hybrid SNVT-1000/1
Hybrid unit - combining electronic and electromechanical stabilization
A hybrid version of a single-phase voltage stabilizer. The Hybrid SNVT-1000/1 unit combines an electronic stabilization method with an electromechanical one. The model produces a sinusoid without distortion, the error in the stabilization of the output voltage does not exceed 3%.
With a voltage in the network of 144-256 V, the device operates as an electromechanical device, at a critical value (105-280 V), the model is tuned to electronic stabilization.
Characteristics of the Hybrid SNVT-1000/1:
- type - hybrid;
- full / active power - 1000 V * A / 800 W;
- input voltage - 144-256 V;
- output voltage - 213-227 V;
- stabilization error - 3%;
- regulation time - 20 V / s;
- sockets - 2 without grounding, 1 with grounding;
- temperature range - -5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, interference, over / under voltage.
The control interface is provided by a push-button switch "ON / OFF" and a voltmeter with an arrow pointer. The analog meter is inferior to the digital one in the accuracy of the voltage display, the error can be 5-10 V. However, for everyday tasks this data is enough.
The Hybrid SNVT-1000/1 stabilizer is adapted to domestic working conditions. The model is perfect for protecting a heating boiler, circulation pump, TV or refrigerator.
- Reasonable cost
- High stabilization accuracy
- There is a voltmeter and a start delay
- Wide input voltage range
- High level of efficiency - 98%
- Analog Voltmeter - Dial Indicators
- No bypass circuit
- Warranty - 1 year
SUNTEK SNET-2000-EM
High power stabilizer with wide input voltage range
Electromechanical stabilizer with a high power rating and a wide range of operating voltage at the input. The SNET-2000-EM model is equipped with a Holtek microcontroller, which ensures accuracy, reliability and stability.
For ease of operation, a small display with an indication of the voltage value and a power button is placed on the front. Installation is straightforward. For quick commissioning, the manufacturer supplied the unit with a Euro plug for connecting to the network and a socket for connecting electrical appliances with a stabilizer.
Characteristics of SNET-2000-EM:
- type - electromechanical;
- full / active power - 2000 V * A / about 2000 W;
- input voltage - 120-285 V;
- output voltage - 213-227 V;
- stabilization error - 3%;
- regulation speed - 30 V / s;
- sockets - 1 with grounding;
- temperature range - -5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - against short circuit, overheating, interference, over / under voltage, protection against pulse discharges.
An extended warranty is applied to the SUNTEK SNET-2000-EM model - 3 years full, 2 years free service. The unit starts operating at full power with an input voltage of 140 V.
The stabilizer is suitable for gas boilers, refrigerators, office and household appliances of low power, television and video equipment and air conditioning equipment.
- High power - 1600 W
- Digital voltmeter
- Lightning surge protection
- Good build quality - rugged housing
- Warranty - 3 years
- Only 1 outlet
- No bypass
- Small display
- Big weight - 7.5 kg
Energy Hybrid SNVT-2000/1
Hybrid model - a symbiosis of electromechanical and relay technology
The combined type of stabilizer uses two principles in its work: relay and electromechanical, that is, servo-drive. The combination of two technologies contributes to the expansion of the operating voltage range - in limiting values, the stabilizer works according to the relay principle, at 144-256 V it functions as an electromechanical unit.
In the model of the Hybrid SNVT-2000/1, a stepless control unit and an electronic discrete control unit are installed. The latter begins to work when extreme power surges or subsidence are recorded in the mains, the range of critical values is 105-280 V.
Characteristics of the Hybrid SNVT-2000/1:
- type - hybrid;
- full / active power - 2000 V * A / 1400 W;
- input voltage - 144-256 V;
- output voltage - 213-227 V;
- stabilization error - 3%;
- stabilization speed - 20 V / s;
- sockets - 1 with grounding;
- temperature range - -5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, over / under voltage.
When choosing a Hybrid SNVT-2000/1 device, please note that there are no sockets in the model. The stabilizer is connected to electrical appliances through a terminal connection. This option is convenient if the location of the device is stationary, since reconnecting to other consumers will take time.
- Active load power - 1400 W
- There is a bypass mode
- Analog voltmeter and indicator lights
- High accuracy at the exit - ± 3%
- There is a delay in launch
- Complaints about drone with high voltage
- Dial indicators show only output voltage and current
- No outlets
IEK SNI1-0.5
Simple and inexpensive low power electromechanical stabilizer
In fifth place is the budget version of the electromechanical stabilizer from IEK. There are 4 levels of protection in the models of the SNI series: from transformer overheating, short circuit and overload, high or low voltage.
The case of the unit is compact (19 * 13 * 17 cm), on the front panel there are light indicators, a start button and a voltmeter.
Characteristics of IEK SNI1-0.5:
- type - electromechanical;
- full / active power - 500 V * A / 500 W;
- input voltage - 160-250 V;
- output voltage - 213-227 V;
- stabilization error - 3%;
- response time - 5000 ± 2 ms;
- sockets - 2;
- temperature range - -5 ° С ... + 40 ° С;
- degree of protection - IP20;
- protective functions - from short circuit, overheating, interference, over / under voltage.
IEK SNI1-0.5 is designed for floor installation, an ergonomic handle at the top of the case is provided for carrying. Spare fuses and an autotransformer brush are standard.
- Low cost
- There is a delay in launch
- Possibility of operation at low temperature - up to -5 ° С
- Intuitive management interface
- High stabilization accuracy
- Low load power
- No bypass
- Response time
- Does not show output voltage
Selection Criteria for Purchasing an Instrument
Not every boiler can be connected to a cheap voltage regulator. When choosing voltage stabilizer it is necessary to consider the parameters of the connected equipment, because sometimes it may not even turn on due to the operation of the built-in protective fuses.
All important technical parameters of the stabilizer will be discussed later.
Maximum load power
The instructions to the CH usually indicate the equipment performance in Volt-Amps (VA). Consumers often confuse this indicator with watts. The indicator on a device of 500 VA does not mean that this stabilizer can normally provide operation of equipment with a power of 0.5 kW.
Domestic boilers in apartments usually consume up to 150 watts in operating mode.
But at the moment of their inclusion, two processes start, sharply increasing the current:
- charging capacitors of the electronic board;
- starting the electric motor of the heating pump.
As a result of these two phenomena, the load on the stabilizer during the first 0.1-0.4 seconds increases 3-5 times to 450-750VA. The resulting inrush currents can be perceived by the SN as a short circuit, as a result of which the device will be disconnected due to the tripped protection.
Best option CH for gas boiler there will be a model whose full power in VA will be 5 times higher than the working needs of the boiler.
If this recommendation is not followed, the situation can develop in two ways:
- The boiler will not turn on and you will have to exchange the stabilizer for a more powerful one.
- CH will regularly work in overload mode, which will lead to its early breakdown.
Therefore buy Voltage regulator for the heating system follows with a power reserve of 3-5 times. Given the power consumption of most boilers, this will not be a costly investment, but it will save you from many problems.
Voltage stabilization speed
In stabilizers, voltage equalization does not occur immediately. The main thing is that the delay time does not negatively affect the operation of the boiler, because a short-term pulse with a value of 260-270V can already lead to burnout of the electronics.
Servo-driven CHs have the lowest speed (10-40V / s), so they will not be able to guarantee the electronic board from critical voltage drops.
Relay stabilizers are faster and equalize voltage in 0.1-0.2 seconds. This time is enough to protect the boiler from problems.
Thyristor SNs provide a voltage correction speed of 10-20 ms. Electronics will not even notice such an interruption. That is exactly what stabilizers are best.
Working voltage range
Most budget stabilizers even have a working range from 140-160 to 250-260 volts. If the voltage in the network is even lower, then this is already an occasion to contact the organization that services the electricity network. If the input parameters deviate from the specified ranges, protection is triggered, and the MV simply turns off.
In the evening, the voltage can drop in the private sector to 170-180 V, so buy stabilizers for heating systems country houses with operating parameters below are not recommended.
Ambient temperature
Servo stabilizers very poorly tolerate subzero temperatures. This is due to icing of the transformer windings, along which the current collector moves. As a result, strong currents can occur during loading, which can melt the copper wire and cause a short circuit.
When installing CH in frost, it is necessary to find out in the instructions the temperature range at which the equipment can be operated. Some stabilizers even have an insulated or waterproof housing.
Other non-critical parameters
When buying a voltage stabilizer, it is advisable to take into account other, non-critical characteristics of the equipment:
- voltage stabilization accuracy:
- the ability to mount CH on the wall;
- the presence of grounding;
- number of built-in protection systems.
Even the worst accuracy of voltage stabilization of 10% will not interfere with the stable operation of the gas boiler. In addition, its electronic circuit boards have their own low-power SN.
For the rest of the equipment, indicators of 200 or 240 V are enough for stable operation. But the optimal value is still 220 V with minimal deviations.
The device can always be mounted on the wall by constructing a small shelf, but specialized mounts are better. Therefore, if it is necessary to wall-mount the SN, it is better to purchase appropriate models for this.
In addition to protection against voltage surges, the connected equipment must be protected from the dangers of the stabilizer itself.
Therefore, CH must have protective mechanisms against such factors:
- overheat;
- overload;
- deviation of the output voltage beyond the permissible values;
- short circuit.
The more protections provided by the design, the less likely it is to damage connected equipment. The last feature worthy of attention is the price of the device, but this parameter depends on many factors.
Voltage Regulator Manufacturers
Only a few manufacturers produce voltage stabilizers of all types at once. Most companies focus on manufacturing products for a specific niche. In recent years, domestic manufacturers have launched the production of their own CH no worse than their foreign counterparts.
So, the best manufacturers of household relay SNs are:
- Resanta
- Lider;
- Luxeon
- Energy;
- Sven
Good electromechanical devices produce:
- LogicPower
- Luxeon
- RUCELF;
- Resanta
- Solby
The following companies are engaged in the production of thyristor stabilizers:
- Volter;
- Luxeon
- Lider;
- Calm;
- Progress.
There are dozens of other manufacturers of voltage regulators, which are also worthy of attention. Their products can also be purchased at the store if there are no suitable models of the above companies in it.
Conclusions and useful video on the topic
The presented videos will help determine the choice of a good CH for a gas boiler.
Video # 1. Choosing a voltage stabilizer for boiler equipment - useful tips:
Video # 2. Work and the internal structure of the stabilizer:
Video # 3. Testing five different voltage stabilizers:
For buyers of voltage stabilizers, the main selection criterion remains the cost of the device. But for one price, you can buy both SN, which is generally not suitable for a gas boiler, and a device that will reliably protect connected equipment for years.
In order not to regret the money spent, when buying a stabilizer, it is imperative to take into account all the above parameters of the equipment.
Please write comments in the block form below. Tell us about how to choose a stabilizer for your own gas boiler. Share useful information that will be useful to site visitors, ask questions, post photos on the topic of the article.
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