Indicator of electrical machines windings defects IDO-07

Name: Indicator of electrical machines windings defects IDO-07
Price: 690.00 EUR
Availability: InStock

IDO-07 – is a portable device designed for monitoring three-phase windings of electrical machines.
IDO-07 – provides detection of:

three-phase windings for the presence of turn-to-turn short circuits, phase loss and incorrect connection of the phases;
coils of windings laid in slots, for the presence of turn-to-turn short circuits;
insulation states of the windings relative to the machine body and between the windings.

IDO-07 allows you to detect defects in a three-phase winding of a machine with a voltage of up to 1000 V in the assembly, as well as to identify defects in a distributed winding of a stator or rotor of a disassembled machine with a voltage of up to 1000 V (except for windings with equalizing connections).

Operating principle:

– when checking the three-phase winding for the presence of turn-to-turn short circuits, phase loss and the correct connection of the phases, the currents of the two phases of the winding are compared when an alternating voltage up to 10 V is applied to them with a frequency up to 10 kHz. If there are defects, the phase currents will be different;
– when checking the coil of the winding put in the slots for the presence of turn-to-turn short circuits, a pulse EMF of 1V / turn is induced in it. If there are short – circuited turns in the coil, the magnetic induction pulse of the field generated by the short-circuit current flowing through them is registered;
– when checking the insulation state of the windings relative to the machine body and between the windings, a DC voltage is applied to the winding, the insulation resistance is determined and the latter is compared with the threshold value (0.5 MOhm).

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Technical specifications

1)	testing parameters:
	– when checking the three-phase winding for the presence of turn-to-turn short circuits, phase loss and the correct connection of the phases	asymmetry coefficient of the phase currents, Kn
	– when checking the coils of the windings laid in the slots for the presence of turn-to-turn short circuits	current in the checked coil
	– when checking the insulation condition of the windings relative to the machine body and between the windings	insulation resistance, Ri
2)	controlled range Kn, %	0÷99
3)	controlled range Ri, MOhm	0÷500
4)	Kn value when closing one turn in phase, %, not less	10
5)	output DC voltage when measuring Ri, V	1000±100
6)	indication	LED
7)	power supply	stand-alone or from an external power supply
8)	supply voltage, V	4 (-1.0 +0.2)
9)	power consumed, W, no more	3
10)	overall dimensions, mm	205×805×50
11)	weight, kg	0.4

Comparison table

Checking name	IDVI	IDO
	05	07
Checking the three-phase winding for the presence of turn-to-turn short circuits, phase loss and the correct connection of the phases	✅	✅
Checking the coils of the windings laid in the slots for the presence of turn-to-turn short circuits	✅	✅
Checking pole coils for turn-to-turn short circuits	✅	❌
Checking deterioration of turn-to-turn insulation of three-phase random windings	✅	❌
Checking short-circuited rotors for the presence of bar breaks	✅	❌
Checking the insulation condition of the windings relative to the machine body and between the windings	✅	✅