DESCRIPTION

The Torkel 860 load unit is used to test backup batteries used in substations and power plants where power failures can cause major problems.

The Torkel 860 is used for systems ranging from 12-480V with discharging taking place at 110A. If a higher current is needed Torkel systems can be linked together.

Specifications

• Maximum voltage 480V
• Maximum current 110A
• Maximum power 15KW
• Load patterns: constant current, constant power, constant resistance, current profile and power profile
• Current setting 0-110.0A
• Power setting 0-15.00KW
• Resistance setting 0.1-2999.8 

Ideal for power plants and substations

Specifications TORKEL 840/860
Specifications are valid at nominal input voltage and an ambient temperature of +25°C, (77°F). Specifications are subject to chang without notice.
​Environment
Application field The instrument is intended for use in high-voltage substations and industrial environments.
Temperature
Operating 0°C to +40°C (32°F to +104°F)
Storage & transport -40°C to +70°C (-40°F to +158°F)
Humidity 5% – 95% RH, non-condensing
CE-marking
EMC 2004/108/EC
LVD 2006/95/EC
General
Mains voltage 100 – 240 V AC, 50 / 60 Hz
Power consumption
(max) 150 W
Protection Thermal cut-outs, automatic overload
protection
Dimensions
Instrument 210 x 353 x 700 mm
(8.3” x 13.9” x 27.6”)
Transport case 265 x 460 x 750 mm
(10.4” x 18.1” x 29.5”)
Weight 21.5 kg (47.4 lbs)
38 kg (83.8 lbs) with accessories and
transport case.
Display LCD
Available languages English, French, German, Spanish, Swedish
Measurement section
Current measurement
Display range 0.0 – 2999 A
Basic inaccuracy ±(0.5% of reading +0.2 A)
Resolution 0.1 A
Internal current measurement
Range 0 – 300 A
Input for clamp-on ammeter
Range 0 – 1 V
mV/A-ratio Software settable, 0.3 to 19.9 mV/A
Input impedance >1 MΩ
Voltage measurement
Display range 0.0 – 60 V
Basic inaccuracy ±(0.5% of reading +0.1 V)
Resolution 0.1 V
Display range 0.0 – 500 V
Basic inaccuracy ±(0.5% of reading +1 V)
Resolution 0.1 V
Time measurement
Basic inaccuracy ±0.1% of reading ±1 digit
Load section
Max. battery voltage 288 V DC (TORKEL 840)
480 V DC (TORKEL 860)
Max. current 110 A
Max. power 15 kW
Load patterns Constant current, constant power, constant
resistance, current or power profile
Current setting 0-110.0 A (2999.9 A) 1)
Power setting 0-15.00 kW (299.99 kW) 1)
Resistance setting 0.1-2999.8 Ω
Battery voltage range,
TORKEL 840
4 ranges, selected automatically at start
of test
Battery voltage range,
TORKEL 860
5 ranges, selected automatically at start
of test
Stabilization (For internal
current measurement)
±(0.5% of reading +0.5 A)
Battery
voltage
Highest permissible
current
Resistor element
(Nominal
values)
Range 1 10 – 27.6 V 110 A 0.165 Ω
Range 2 10 – 55.2 V 110 A 0.275 Ω
Range 3 10 – 144 V 110 A 0.55 Ω
Range 4 10 – 288 V 55 A 3.3 Ω
Range 5 2) 10 – 480 V 55 A
(max power 15 kW)
3.3 Ω
1) Maximum value for a system with more than one load unit
2) TORKEL 860
Inputs, maximal values
EXTERNAL
CURRENT
MEASUREMENT
1 V DC, 300 V DC to ground. Current
shunt should be connected to the negative
side of the battery
START / STOP Closing / opening contact
Closing and then opening the contact
will start / stop Torkel. It is not possible to
keep the contacts in closed position.
Delay until start 200 – 300 ms
Stop delay 100 – 200 ms
Battery 480 V DC, 500 V DC to ground
VOLTAGE SENSE 480 V DC, 500 V DC to ground
SERIAL < 15 V
ALARM 250 V DC 0.28 A
28 V DC 8 A
250 V AC 8 A
Outputs, maximal values
START / STOP 5 V, 6 mA
TXL Relay contact
SERIAL < 15 V
ALARM Relay contact​